catch.hpp

/*
*  Catch v2.0.1
*  Generated: 2017-11-03 11:53:39.642003
*  ----------------------------------------------------------
*  This file has been merged from multiple headers. Please don't edit it directly
*  Copyright (c) 2017 Two Blue Cubes Ltd. All rights reserved.
*
*  Distributed under the Boost Software License, Version 1.0. (See accompanying
*  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
*/
#ifndef TWOBLUECUBES_SINGLE_INCLUDE_CATCH_HPP_INCLUDED
#define TWOBLUECUBES_SINGLE_INCLUDE_CATCH_HPP_INCLUDED
// start catch.hpp


#ifdef __clang__
#    pragma clang system_header
#elif defined __GNUC__
#    pragma GCC system_header
#endif

// start catch_suppress_warnings.h

#ifdef __clang__
#   ifdef __ICC // icpc defines the __clang__ macro
#       pragma warning(push)
#       pragma warning(disable: 161 1682)
#   else // __ICC
#       pragma clang diagnostic ignored "-Wglobal-constructors"
#       pragma clang diagnostic ignored "-Wvariadic-macros"
#       pragma clang diagnostic ignored "-Wc99-extensions"
#       pragma clang diagnostic ignored "-Wunused-variable"
#       pragma clang diagnostic push
#       pragma clang diagnostic ignored "-Wpadded"
#       pragma clang diagnostic ignored "-Wswitch-enum"
#       pragma clang diagnostic ignored "-Wcovered-switch-default"
#    endif
#elif defined __GNUC__
#    pragma GCC diagnostic ignored "-Wvariadic-macros"
#    pragma GCC diagnostic ignored "-Wunused-variable"
#    pragma GCC diagnostic ignored "-Wparentheses"

#    pragma GCC diagnostic push
#    pragma GCC diagnostic ignored "-Wpadded"
#endif
// end catch_suppress_warnings.h
#if defined(CATCH_CONFIG_MAIN) || defined(CATCH_CONFIG_RUNNER)
#  define CATCH_IMPL
#  define CATCH_CONFIG_EXTERNAL_INTERFACES
#  if defined(CATCH_CONFIG_DISABLE_MATCHERS)
#    undef CATCH_CONFIG_DISABLE_MATCHERS
#  endif
#endif

// start catch_platform.h

#ifdef __APPLE__
# include <TargetConditionals.h>
# if TARGET_OS_MAC == 1
#  define CATCH_PLATFORM_MAC
# elif TARGET_OS_IPHONE == 1
#  define CATCH_PLATFORM_IPHONE
# endif

#elif defined(linux) || defined(__linux) || defined(__linux__)
#  define CATCH_PLATFORM_LINUX

#elif defined(WIN32) || defined(__WIN32__) || defined(_WIN32) || defined(_MSC_VER)
#  define CATCH_PLATFORM_WINDOWS
#endif

// end catch_platform.h
#ifdef CATCH_IMPL
#  ifndef CLARA_CONFIG_MAIN
#    define CLARA_CONFIG_MAIN_NOT_DEFINED
#    define CLARA_CONFIG_MAIN
#  endif
#endif

// start catch_tag_alias_autoregistrar.h

// start catch_common.h

// start catch_compiler_capabilities.h

// Detect a number of compiler features - by compiler
// The following features are defined:
//
// CATCH_CONFIG_COUNTER : is the __COUNTER__ macro supported?
// CATCH_CONFIG_WINDOWS_SEH : is Windows SEH supported?
// CATCH_CONFIG_POSIX_SIGNALS : are POSIX signals supported?
// ****************
// Note to maintainers: if new toggles are added please document them
// in configuration.md, too
// ****************

// In general each macro has a _NO_<feature name> form
// (e.g. CATCH_CONFIG_NO_POSIX_SIGNALS) which disables the feature.
// Many features, at point of detection, define an _INTERNAL_ macro, so they
// can be combined, en-mass, with the _NO_ forms later.

#ifdef __cplusplus

#  if __cplusplus >= 201402L
#    define CATCH_CPP14_OR_GREATER
#  endif

#endif

#ifdef __clang__

#       define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
            _Pragma( "clang diagnostic push" ) \
            _Pragma( "clang diagnostic ignored \"-Wexit-time-destructors\"" ) \
            _Pragma( "clang diagnostic ignored \"-Wglobal-constructors\"")
#       define CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS \
            _Pragma( "clang diagnostic pop" )

#       define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS \
            _Pragma( "clang diagnostic push" ) \
            _Pragma( "clang diagnostic ignored \"-Wparentheses\"" )
#       define CATCH_INTERNAL_UNSUPPRESS_PARENTHESES_WARNINGS \
            _Pragma( "clang diagnostic pop" )

#endif // __clang__

////////////////////////////////////////////////////////////////////////////////
// We know some environments not to support full POSIX signals
#if defined(__CYGWIN__) || defined(__QNX__)

#   if !defined(CATCH_CONFIG_POSIX_SIGNALS)
#       define CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS
#   endif

#endif

#ifdef __OS400__
#       define CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS
#       define CATCH_CONFIG_COLOUR_NONE
#endif

////////////////////////////////////////////////////////////////////////////////
// Cygwin
#ifdef __CYGWIN__

// Required for some versions of Cygwin to declare gettimeofday
// see: http://stackoverflow.com/questions/36901803/gettimeofday-not-declared-in-this-scope-cygwin
#   define _BSD_SOURCE

#endif // __CYGWIN__

////////////////////////////////////////////////////////////////////////////////
// Visual C++
#ifdef _MSC_VER

// Universal Windows platform does not support SEH
// Or console colours (or console at all...)
#  if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_APP)
#    define CATCH_CONFIG_COLOUR_NONE
#  else
#    define CATCH_INTERNAL_CONFIG_WINDOWS_SEH
#  endif

#endif // _MSC_VER

////////////////////////////////////////////////////////////////////////////////

// Use of __COUNTER__ is suppressed during code analysis in
// CLion/AppCode 2017.2.x and former, because __COUNTER__ is not properly
// handled by it.
// Otherwise all supported compilers support COUNTER macro,
// but user still might want to turn it off
#if ( !defined(__JETBRAINS_IDE__) || __JETBRAINS_IDE__ >= 20170300L )
#define CATCH_INTERNAL_CONFIG_COUNTER
#endif

#if defined(CATCH_INTERNAL_CONFIG_COUNTER) && !defined(CATCH_CONFIG_NO_COUNTER) && !defined(CATCH_CONFIG_COUNTER)
#   define CATCH_CONFIG_COUNTER
#endif
#if defined(CATCH_INTERNAL_CONFIG_WINDOWS_SEH) && !defined(CATCH_CONFIG_NO_WINDOWS_SEH) && !defined(CATCH_CONFIG_WINDOWS_SEH)
#   define CATCH_CONFIG_WINDOWS_SEH
#endif
// This is set by default, because we assume that unix compilers are posix-signal-compatible by default.
#if !defined(CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS) && !defined(CATCH_CONFIG_NO_POSIX_SIGNALS) && !defined(CATCH_CONFIG_POSIX_SIGNALS)
#   define CATCH_CONFIG_POSIX_SIGNALS
#endif

#if !defined(CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS)
#   define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS
#   define CATCH_INTERNAL_UNSUPPRESS_PARENTHESES_WARNINGS
#endif
#if !defined(CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS)
#   define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
#   define CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS
#endif

// end catch_compiler_capabilities.h
#define INTERNAL_CATCH_UNIQUE_NAME_LINE2( name, line ) name##line
#define INTERNAL_CATCH_UNIQUE_NAME_LINE( name, line ) INTERNAL_CATCH_UNIQUE_NAME_LINE2( name, line )
#ifdef CATCH_CONFIG_COUNTER
#  define INTERNAL_CATCH_UNIQUE_NAME( name ) INTERNAL_CATCH_UNIQUE_NAME_LINE( name, __COUNTER__ )
#else
#  define INTERNAL_CATCH_UNIQUE_NAME( name ) INTERNAL_CATCH_UNIQUE_NAME_LINE( name, __LINE__ )
#endif

#include <iosfwd>
#include <string>
#include <cstdint>

namespace Catch {

    struct CaseSensitive {
        enum Choice {
            Yes,
            No
        };
    };

    class NonCopyable {
        NonCopyable(NonCopyable const&) = delete;
        NonCopyable(NonCopyable &&) = delete;
        NonCopyable& operator = (NonCopyable const&) = delete;
        NonCopyable& operator = (NonCopyable &&) = delete;

    protected:
        NonCopyable();
        virtual ~NonCopyable();
    };

    struct SourceLineInfo {

        SourceLineInfo() = delete;
        SourceLineInfo(char const* _file, std::size_t _line) noexcept;

        SourceLineInfo(SourceLineInfo const& other) = default;
        SourceLineInfo(SourceLineInfo &&) = default;
        SourceLineInfo& operator = (SourceLineInfo const&) = default;
        SourceLineInfo& operator = (SourceLineInfo &&) = default;

        bool empty() const noexcept;
        bool operator == (SourceLineInfo const& other) const noexcept;
        bool operator < (SourceLineInfo const& other) const noexcept;

        char const* file;
        std::size_t line;
    };

    std::ostream& operator << (std::ostream& os, SourceLineInfo const& info);

    // This is just here to avoid compiler warnings with macro constants and boolean literals
    bool isTrue(bool value);
    bool alwaysTrue();
    bool alwaysFalse();

    // Use this in variadic streaming macros to allow
    //    >> +StreamEndStop
    // as well as
    //    >> stuff +StreamEndStop
    struct StreamEndStop {
        std::string operator+() const;
    };
    template<typename T>
    T const& operator + (T const& value, StreamEndStop) {
        return value;
    }
}

#define CATCH_INTERNAL_LINEINFO \
    ::Catch::SourceLineInfo( __FILE__, static_cast<std::size_t>( __LINE__ ) )

// end catch_common.h
namespace Catch {

    struct RegistrarForTagAliases {
        RegistrarForTagAliases(char const* alias, char const* tag, SourceLineInfo const& lineInfo);
    };

} // end namespace Catch

#define CATCH_REGISTER_TAG_ALIAS( alias, spec ) namespace{ Catch::RegistrarForTagAliases INTERNAL_CATCH_UNIQUE_NAME( AutoRegisterTagAlias )( alias, spec, CATCH_INTERNAL_LINEINFO ); }

  // end catch_tag_alias_autoregistrar.h
  // start catch_test_registry.h

  // start catch_interfaces_testcase.h

#include <vector>
#include <memory>

namespace Catch {

    class TestSpec;

    struct ITestInvoker {
        virtual void invoke() const = 0;
        virtual ~ITestInvoker();
    };

    using ITestCasePtr = std::shared_ptr<ITestInvoker>;

    class TestCase;
    struct IConfig;

    struct ITestCaseRegistry {
        virtual ~ITestCaseRegistry();
        virtual std::vector<TestCase> const& getAllTests() const = 0;
        virtual std::vector<TestCase> const& getAllTestsSorted(IConfig const& config) const = 0;
    };

    bool matchTest(TestCase const& testCase, TestSpec const& testSpec, IConfig const& config);
    std::vector<TestCase> filterTests(std::vector<TestCase> const& testCases, TestSpec const& testSpec, IConfig const& config);
    std::vector<TestCase> const& getAllTestCasesSorted(IConfig const& config);

}

// end catch_interfaces_testcase.h
// start catch_stringref.h

#include <cstddef>
#include <string>
#include <iosfwd>

namespace Catch {

    class StringData;

    /// A non-owning string class (similar to the forthcoming std::string_view)
    /// Note that, because a StringRef may be a substring of another string,
    /// it may not be null terminated. c_str() must return a null terminated
    /// string, however, and so the StringRef will internally take ownership
    /// (taking a copy), if necessary. In theory this ownership is not externally
    /// visible - but it does mean (substring) StringRefs should not be shared between
    /// threads.
    class StringRef {
        friend struct StringRefTestAccess;

        using size_type = std::size_t;

        char const* m_start;
        size_type m_size;

        char* m_data = nullptr;

        void takeOwnership();

    public: // construction/ assignment
        StringRef() noexcept;
        StringRef(StringRef const& other) noexcept;
        StringRef(StringRef&& other) noexcept;
        StringRef(char const* rawChars) noexcept;
        StringRef(char const* rawChars, size_type size) noexcept;
        StringRef(std::string const& stdString) noexcept;
        ~StringRef() noexcept;

        auto operator = (StringRef other) noexcept->StringRef&;
        operator std::string() const;

        void swap(StringRef& other) noexcept;

    public: // operators
        auto operator == (StringRef const& other) const noexcept -> bool;
        auto operator != (StringRef const& other) const noexcept -> bool;

        auto operator[] (size_type index) const noexcept -> char;

    public: // named queries
        auto empty() const noexcept -> bool;
        auto size() const noexcept->size_type;
        auto numberOfCharacters() const noexcept->size_type;
        auto c_str() const -> char const*;

    public: // substrings and searches
        auto substr(size_type start, size_type size) const noexcept->StringRef;

    private: // ownership queries - may not be consistent between calls
        auto isOwned() const noexcept -> bool;
        auto isSubstring() const noexcept -> bool;
        auto data() const noexcept -> char const*;
    };

    auto operator + (StringRef const& lhs, StringRef const& rhs)->std::string;
    auto operator + (StringRef const& lhs, char const* rhs)->std::string;
    auto operator + (char const* lhs, StringRef const& rhs)->std::string;

    auto operator << (std::ostream& os, StringRef const& sr)->std::ostream&;

} // namespace Catch

  // end catch_stringref.h
namespace Catch {

    template<typename C>
    class TestInvokerAsMethod : public ITestInvoker {
        void (C::*m_testAsMethod)();
    public:
        TestInvokerAsMethod(void (C::*testAsMethod)()) noexcept : m_testAsMethod(testAsMethod) {}

        void invoke() const override {
            C obj;
            (obj.*m_testAsMethod)();
        }
    };

    auto makeTestInvoker(void(*testAsFunction)()) noexcept->ITestInvoker*;

    template<typename C>
    auto makeTestInvoker(void (C::*testAsMethod)()) noexcept -> ITestInvoker* {
        return new(std::nothrow) TestInvokerAsMethod<C>(testAsMethod);
    }

    struct NameAndTags {
        NameAndTags(StringRef name_ = "", StringRef tags_ = "") noexcept;
        StringRef name;
        StringRef tags;
    };

    struct AutoReg : NonCopyable {
        AutoReg(ITestInvoker* invoker, SourceLineInfo const& lineInfo, StringRef classOrMethod, NameAndTags const& nameAndTags) noexcept;
        ~AutoReg();
    };

} // end namespace Catch

#if defined(CATCH_CONFIG_DISABLE)
#define INTERNAL_CATCH_TESTCASE_NO_REGISTRATION( TestName, ... ) \
        static void TestName()
#define INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION( TestName, ClassName, ... ) \
        namespace{                        \
            struct TestName : ClassName { \
                void test();              \
            };                            \
        }                                 \
        void TestName::test()

#endif

  ///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_TESTCASE2( TestName, ... ) \
        static void TestName(); \
        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
        namespace{ Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( Catch::makeTestInvoker( &TestName ), CATCH_INTERNAL_LINEINFO, "", Catch::NameAndTags{ __VA_ARGS__ } ); } /* NOLINT */ \
        CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS \
        static void TestName()
#define INTERNAL_CATCH_TESTCASE( ... ) \
        INTERNAL_CATCH_TESTCASE2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ), __VA_ARGS__ )

  ///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_METHOD_AS_TEST_CASE( QualifiedMethod, ... ) \
        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
        namespace{ Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( Catch::makeTestInvoker( &QualifiedMethod ), CATCH_INTERNAL_LINEINFO, "&" #QualifiedMethod, Catch::NameAndTags{ __VA_ARGS__ } ); } /* NOLINT */ \
        CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS

  ///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_TEST_CASE_METHOD2( TestName, ClassName, ... )\
        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
        namespace{ \
            struct TestName : ClassName{ \
                void test(); \
            }; \
            Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar ) ( Catch::makeTestInvoker( &TestName::test ), CATCH_INTERNAL_LINEINFO, #ClassName, Catch::NameAndTags{ __VA_ARGS__ } ); /* NOLINT */ \
        } \
        CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS \
        void TestName::test()
#define INTERNAL_CATCH_TEST_CASE_METHOD( ClassName, ... ) \
        INTERNAL_CATCH_TEST_CASE_METHOD2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ), ClassName, __VA_ARGS__ )

  ///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_REGISTER_TESTCASE( Function, ... ) \
        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
        Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( Catch::makeTestInvoker( Function ), CATCH_INTERNAL_LINEINFO, "", Catch::NameAndTags{ __VA_ARGS__ } ); /* NOLINT */ \
        CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS

  // end catch_test_registry.h
  // start catch_capture.hpp

  // start catch_assertionhandler.h

  // start catch_decomposer.h

  // start catch_tostring.h

#include <sstream>
#include <vector>
#include <cstddef>
#include <type_traits>
#include <string>

#ifdef __OBJC__
  // start catch_objc_arc.hpp

#import <Foundation/Foundation.h>

#ifdef __has_feature
#define CATCH_ARC_ENABLED __has_feature(objc_arc)
#else
#define CATCH_ARC_ENABLED 0
#endif

void arcSafeRelease(NSObject* obj);
id performOptionalSelector(id obj, SEL sel);

#if !CATCH_ARC_ENABLED
inline void arcSafeRelease(NSObject* obj) {
    [obj release];
}
inline id performOptionalSelector(id obj, SEL sel) {
    if ([obj respondsToSelector : sel])
        return[obj performSelector : sel];
    return nil;
}
#define CATCH_UNSAFE_UNRETAINED
#define CATCH_ARC_STRONG
#else
inline void arcSafeRelease(NSObject*) {}
inline id performOptionalSelector(id obj, SEL sel) {
#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
#endif
    if ([obj respondsToSelector : sel])
        return[obj performSelector : sel];
#ifdef __clang__
#pragma clang diagnostic pop
#endif
    return nil;
}
#define CATCH_UNSAFE_UNRETAINED __unsafe_unretained
#define CATCH_ARC_STRONG __strong
#endif

// end catch_objc_arc.hpp
#endif

#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable:4180) // We attempt to stream a function (address) by const&, which MSVC complains about but is harmless
#endif

// We need a dummy global operator<< so we can bring it into Catch namespace later
struct Catch_global_namespace_dummy;
std::ostream& operator<<(std::ostream&, Catch_global_namespace_dummy);

namespace Catch {
    // Bring in operator<< from global namespace into Catch namespace
    using ::operator<<;

    namespace Detail {

        extern const std::string unprintableString;

        std::string rawMemoryToString(const void *object, std::size_t size);

        template<typename T>
        std::string rawMemoryToString(const T& object) {
            return rawMemoryToString(&object, sizeof(object));
        }

        template<typename T>
        class IsStreamInsertable {
            template<typename SS, typename TT>
            static auto test(int)
                -> decltype(std::declval<SS&>() << std::declval<TT>(), std::true_type());

            template<typename, typename>
            static auto test(...)->std::false_type;

        public:
            static const bool value = decltype(test<std::ostream, const T&>(0))::value;
        };

    } // namespace Detail

      // If we decide for C++14, change these to enable_if_ts
    template <typename T>
    struct StringMaker {
        template <typename Fake = T>
        static
            typename std::enable_if<::Catch::Detail::IsStreamInsertable<Fake>::value, std::string>::type
            convert(const Fake& t) {
            std::ostringstream sstr;
            sstr << t;
            return sstr.str();
        }

        template <typename Fake = T>
        static
            typename std::enable_if<!::Catch::Detail::IsStreamInsertable<Fake>::value, std::string>::type
            convert(const Fake&) {
            return Detail::unprintableString;
        }
    };

    namespace Detail {

        // This function dispatches all stringification requests inside of Catch.
        // Should be preferably called fully qualified, like ::Catch::Detail::stringify
        template <typename T>
        std::string stringify(const T& e) {
            return ::Catch::StringMaker<typename std::remove_cv<typename std::remove_reference<T>::type>::type>::convert(e);
        }

    } // namespace Detail

      // Some predefined specializations

    template<>
    struct StringMaker<std::string> {
        static std::string convert(const std::string& str);
    };
    template<>
    struct StringMaker<std::wstring> {
        static std::string convert(const std::wstring& wstr);
    };

    template<>
    struct StringMaker<char const *> {
        static std::string convert(char const * str);
    };
    template<>
    struct StringMaker<char *> {
        static std::string convert(char * str);
    };
    template<>
    struct StringMaker<wchar_t const *> {
        static std::string convert(wchar_t const * str);
    };
    template<>
    struct StringMaker<wchar_t *> {
        static std::string convert(wchar_t * str);
    };

    template<int SZ>
    struct StringMaker<char[SZ]> {
        static std::string convert(const char* str) {
            return ::Catch::Detail::stringify(std::string{ str });
        }
    };
    template<int SZ>
    struct StringMaker<signed char[SZ]> {
        static std::string convert(const char* str) {
            return ::Catch::Detail::stringify(std::string{ str });
        }
    };
    template<int SZ>
    struct StringMaker<unsigned char[SZ]> {
        static std::string convert(const char* str) {
            return ::Catch::Detail::stringify(std::string{ str });
        }
    };

    template<>
    struct StringMaker<int> {
        static std::string convert(int value);
    };
    template<>
    struct StringMaker<long> {
        static std::string convert(long value);
    };
    template<>
    struct StringMaker<long long> {
        static std::string convert(long long value);
    };
    template<>
    struct StringMaker<unsigned int> {
        static std::string convert(unsigned int value);
    };
    template<>
    struct StringMaker<unsigned long> {
        static std::string convert(unsigned long value);
    };
    template<>
    struct StringMaker<unsigned long long> {
        static std::string convert(unsigned long long value);
    };

    template<>
    struct StringMaker<bool> {
        static std::string convert(bool b);
    };

    template<>
    struct StringMaker<char> {
        static std::string convert(char c);
    };
    template<>
    struct StringMaker<signed char> {
        static std::string convert(signed char c);
    };
    template<>
    struct StringMaker<unsigned char> {
        static std::string convert(unsigned char c);
    };

    template<>
    struct StringMaker<std::nullptr_t> {
        static std::string convert(std::nullptr_t);
    };

    template<>
    struct StringMaker<float> {
        static std::string convert(float value);
    };
    template<>
    struct StringMaker<double> {
        static std::string convert(double value);
    };

    template <typename T>
    struct StringMaker<T*> {
        template <typename U>
        static std::string convert(U* p) {
            if (p) {
                return ::Catch::Detail::rawMemoryToString(p);
            } else {
                return "nullptr";
            }
        }
    };

    template <typename R, typename C>
    struct StringMaker<R C::*> {
        static std::string convert(R C::* p) {
            if (p) {
                return ::Catch::Detail::rawMemoryToString(p);
            } else {
                return "nullptr";
            }
        }
    };

    namespace Detail {
        template<typename InputIterator>
        std::string rangeToString(InputIterator first, InputIterator last) {
            std::ostringstream oss;
            oss << "{ ";
            if (first != last) {
                oss << ::Catch::Detail::stringify(*first);
                for (++first; first != last; ++first)
                    oss << ", " << ::Catch::Detail::stringify(*first);
            }
            oss << " }";
            return oss.str();
        }
    }

    template<typename T, typename Allocator>
    struct StringMaker<std::vector<T, Allocator> > {
        static std::string convert(std::vector<T, Allocator> const& v) {
            return ::Catch::Detail::rangeToString(v.begin(), v.end());
        }
    };

    template<typename T>
    struct EnumStringMaker {
        static std::string convert(const T& t) {
            return ::Catch::Detail::stringify(static_cast<typename std::underlying_type<T>::type>(t));
        }
    };

#ifdef __OBJC__
    template<>
    struct StringMaker<NSString*> {
        static std::string convert(NSString * nsstring) {
            if (!nsstring)
                return "nil";
            return std::string("@") + [nsstring UTF8String];
        }
    };
    template<>
    struct StringMaker<NSObject*> {
        static std::string convert(NSObject* nsObject) {
            return ::Catch::Detail::stringify([nsObject description]);
        }

    };
    namespace Detail {
        inline std::string stringify(NSString* nsstring) {
            return StringMaker<NSString*>::convert(nsstring);
        }

    } // namespace Detail
#endif // __OBJC__

} // namespace Catch

  //////////////////////////////////////////////////////
  // Separate std-lib types stringification, so it can be selectively enabled
  // This means that we do not bring in

#if defined(CATCH_CONFIG_ENABLE_ALL_STRINGMAKERS)
#  define CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER
#  define CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER
#  define CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
#endif

  // Separate std::pair specialization
#if defined(CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER)
#include <utility>
namespace Catch {
    template<typename T1, typename T2>
    struct StringMaker<std::pair<T1, T2> > {
        static std::string convert(const std::pair<T1, T2>& pair) {
            std::ostringstream oss;
            oss << "{ "
                << ::Catch::Detail::stringify(pair.first)
                << ", "
                << ::Catch::Detail::stringify(pair.second)
                << " }";
            return oss.str();
        }
    };
}
#endif // CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER

// Separate std::tuple specialization
#if defined(CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER)
#include <tuple>
namespace Catch {
    namespace Detail {
        template<
            typename Tuple,
            std::size_t N = 0,
            bool = (N < std::tuple_size<Tuple>::value)
            >
            struct TupleElementPrinter {
            static void print(const Tuple& tuple, std::ostream& os) {
                os << (N ? ", " : " ")
                    << ::Catch::Detail::stringify(std::get<N>(tuple));
                TupleElementPrinter<Tuple, N + 1>::print(tuple, os);
            }
        };

        template<
            typename Tuple,
            std::size_t N
        >
            struct TupleElementPrinter<Tuple, N, false> {
            static void print(const Tuple&, std::ostream&) {}
        };

    }

    template<typename ...Types>
    struct StringMaker<std::tuple<Types...>> {
        static std::string convert(const std::tuple<Types...>& tuple) {
            std::ostringstream os;
            os << '{';
            Detail::TupleElementPrinter<std::tuple<Types...>>::print(tuple, os);
            os << " }";
            return os.str();
        }
    };
}
#endif // CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER

// Separate std::chrono::duration specialization
#if defined(CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER)
#include <ctime>
#include <ratio>
#include <chrono>

template <class Ratio>
struct ratio_string {
    static std::string symbol();
};

template <class Ratio>
std::string ratio_string<Ratio>::symbol() {
    std::ostringstream oss;
    oss << '[' << Ratio::num << '/'
        << Ratio::den << ']';
    return oss.str();
}
template <>
struct ratio_string<std::atto> {
    static std::string symbol() { return "a"; }
};
template <>
struct ratio_string<std::femto> {
    static std::string symbol() { return "f"; }
};
template <>
struct ratio_string<std::pico> {
    static std::string symbol() { return "p"; }
};
template <>
struct ratio_string<std::nano> {
    static std::string symbol() { return "n"; }
};
template <>
struct ratio_string<std::micro> {
    static std::string symbol() { return "u"; }
};
template <>
struct ratio_string<std::milli> {
    static std::string symbol() { return "m"; }
};

namespace Catch {
    ////////////
    // std::chrono::duration specializations
    template<typename Value, typename Ratio>
    struct StringMaker<std::chrono::duration<Value, Ratio>> {
        static std::string convert(std::chrono::duration<Value, Ratio> const& duration) {
            std::ostringstream oss;
            oss << duration.count() << ' ' << ratio_string<Ratio>::symbol() << 's';
            return oss.str();
        }
    };
    template<typename Value>
    struct StringMaker<std::chrono::duration<Value, std::ratio<1>>> {
        static std::string convert(std::chrono::duration<Value, std::ratio<1>> const& duration) {
            std::ostringstream oss;
            oss << duration.count() << " s";
            return oss.str();
        }
    };
    template<typename Value>
    struct StringMaker<std::chrono::duration<Value, std::ratio<60>>> {
        static std::string convert(std::chrono::duration<Value, std::ratio<60>> const& duration) {
            std::ostringstream oss;
            oss << duration.count() << " m";
            return oss.str();
        }
    };
    template<typename Value>
    struct StringMaker<std::chrono::duration<Value, std::ratio<3600>>> {
        static std::string convert(std::chrono::duration<Value, std::ratio<3600>> const& duration) {
            std::ostringstream oss;
            oss << duration.count() << " h";
            return oss.str();
        }
    };

    ////////////
    // std::chrono::time_point specialization
    // Generic time_point cannot be specialized, only std::chrono::time_point<system_clock>
    template<typename Clock, typename Duration>
    struct StringMaker<std::chrono::time_point<Clock, Duration>> {
        static std::string convert(std::chrono::time_point<Clock, Duration> const& time_point) {
            return ::Catch::Detail::stringify(time_point.time_since_epoch()) + " since epoch";
        }
    };
    // std::chrono::time_point<system_clock> specialization
    template<typename Duration>
    struct StringMaker<std::chrono::time_point<std::chrono::system_clock, Duration>> {
        static std::string convert(std::chrono::time_point<std::chrono::system_clock, Duration> const& time_point) {
            auto converted = std::chrono::system_clock::to_time_t(time_point);

#ifdef _MSC_VER
            std::tm timeInfo = {};
            gmtime_s(&timeInfo, &converted);
#else
            std::tm* timeInfo = std::gmtime(&converted);
#endif

            auto const timeStampSize = sizeof("2017-01-16T17:06:45Z");
            char timeStamp[timeStampSize];
            const char * const fmt = "%Y-%m-%dT%H:%M:%SZ";

#ifdef _MSC_VER
            std::strftime(timeStamp, timeStampSize, fmt, &timeInfo);
#else
            std::strftime(timeStamp, timeStampSize, fmt, timeInfo);
#endif
            return std::string(timeStamp);
        }
    };
}
#endif // CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER

#ifdef _MSC_VER
#pragma warning(pop)
#endif

// end catch_tostring.h
#include <ostream>

#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable:4389) // '==' : signed/unsigned mismatch
#pragma warning(disable:4018) // more "signed/unsigned mismatch"
#pragma warning(disable:4312) // Converting int to T* using reinterpret_cast (issue on x64 platform)
#pragma warning(disable:4180) // qualifier applied to function type has no meaning
#endif

namespace Catch {

    struct ITransientExpression {
        virtual auto isBinaryExpression() const -> bool = 0;
        virtual auto getResult() const -> bool = 0;
        virtual void streamReconstructedExpression(std::ostream &os) const = 0;

        // We don't actually need a virtual destructore, but many static analysers
        // complain if it's not here :-(
        virtual ~ITransientExpression();
    };

    void formatReconstructedExpression(std::ostream &os, std::string const& lhs, StringRef op, std::string const& rhs);

    template<typename LhsT, typename RhsT>
    class BinaryExpr : public ITransientExpression {
        bool m_result;
        LhsT m_lhs;
        StringRef m_op;
        RhsT m_rhs;

        auto isBinaryExpression() const -> bool override { return true; }
        auto getResult() const -> bool override { return m_result; }

        void streamReconstructedExpression(std::ostream &os) const override {
            formatReconstructedExpression
            (os, Catch::Detail::stringify(m_lhs), m_op, Catch::Detail::stringify(m_rhs));
        }

    public:
        BinaryExpr(bool comparisonResult, LhsT lhs, StringRef op, RhsT rhs)
            : m_result(comparisonResult),
            m_lhs(lhs),
            m_op(op),
            m_rhs(rhs) {
        }
    };

    template<typename LhsT>
    class UnaryExpr : public ITransientExpression {
        LhsT m_lhs;

        auto isBinaryExpression() const -> bool override { return false; }
        auto getResult() const -> bool override { return m_lhs ? true : false; }

        void streamReconstructedExpression(std::ostream &os) const override {
            os << Catch::Detail::stringify(m_lhs);
        }

    public:
        UnaryExpr(LhsT lhs) : m_lhs(lhs) {}
    };

    // Specialised comparison functions to handle equality comparisons between ints and pointers (NULL deduces as an int)
    template<typename LhsT, typename RhsT>
    auto compareEqual(LhsT const& lhs, RhsT const& rhs) -> bool { return lhs == rhs; };
    template<typename T>
    auto compareEqual(T* const& lhs, int rhs) -> bool { return lhs == reinterpret_cast<void const*>(rhs); }
    template<typename T>
    auto compareEqual(T* const& lhs, long rhs) -> bool { return lhs == reinterpret_cast<void const*>(rhs); }
    template<typename T>
    auto compareEqual(int lhs, T* const& rhs) -> bool { return reinterpret_cast<void const*>(lhs) == rhs; }
    template<typename T>
    auto compareEqual(long lhs, T* const& rhs) -> bool { return reinterpret_cast<void const*>(lhs) == rhs; }

    template<typename LhsT, typename RhsT>
    auto compareNotEqual(LhsT const& lhs, RhsT&& rhs) -> bool { return lhs != rhs; };
    template<typename T>
    auto compareNotEqual(T* const& lhs, int rhs) -> bool { return lhs != reinterpret_cast<void const*>(rhs); }
    template<typename T>
    auto compareNotEqual(T* const& lhs, long rhs) -> bool { return lhs != reinterpret_cast<void const*>(rhs); }
    template<typename T>
    auto compareNotEqual(int lhs, T* const& rhs) -> bool { return reinterpret_cast<void const*>(lhs) != rhs; }
    template<typename T>
    auto compareNotEqual(long lhs, T* const& rhs) -> bool { return reinterpret_cast<void const*>(lhs) != rhs; }

    template<typename LhsT>
    class ExprLhs {
        LhsT m_lhs;
    public:
        ExprLhs(LhsT lhs) : m_lhs(lhs) {}

        template<typename RhsT>
        auto operator == (RhsT const& rhs) -> BinaryExpr<LhsT, RhsT const&> const {
            return BinaryExpr<LhsT, RhsT const&>(compareEqual(m_lhs, rhs), m_lhs, "==", rhs);
        }
        auto operator == (bool rhs) -> BinaryExpr<LhsT, bool> const {
            return BinaryExpr<LhsT, bool>(m_lhs == rhs, m_lhs, "==", rhs);
        }

        template<typename RhsT>
        auto operator != (RhsT const& rhs) -> BinaryExpr<LhsT, RhsT const&> const {
            return BinaryExpr<LhsT, RhsT const&>(compareNotEqual(m_lhs, rhs), m_lhs, "!=", rhs);
        }
        auto operator != (bool rhs) -> BinaryExpr<LhsT, bool> const {
            return BinaryExpr<LhsT, bool>(m_lhs != rhs, m_lhs, "!=", rhs);
        }

        template<typename RhsT>
        auto operator > (RhsT const& rhs) -> BinaryExpr<LhsT, RhsT const&> const {
            return BinaryExpr<LhsT, RhsT const&>(m_lhs > rhs, m_lhs, ">", rhs);
        }
        template<typename RhsT>
        auto operator < (RhsT const& rhs) -> BinaryExpr<LhsT, RhsT const&> const {
            return BinaryExpr<LhsT, RhsT const&>(m_lhs < rhs, m_lhs, "<", rhs);
        }
        template<typename RhsT>
        auto operator >= (RhsT const& rhs) -> BinaryExpr<LhsT, RhsT const&> const {
            return BinaryExpr<LhsT, RhsT const&>(m_lhs >= rhs, m_lhs, ">=", rhs);
        }
        template<typename RhsT>
        auto operator <= (RhsT const& rhs) -> BinaryExpr<LhsT, RhsT const&> const {
            return BinaryExpr<LhsT, RhsT const&>(m_lhs <= rhs, m_lhs, "<=", rhs);
        }

        auto makeUnaryExpr() const -> UnaryExpr<LhsT> {
            return UnaryExpr<LhsT>(m_lhs);
        }
    };

    void handleExpression(ITransientExpression const& expr);

    template<typename T>
    void handleExpression(ExprLhs<T> const& expr) {
        handleExpression(expr.makeUnaryExpr());
    }

    struct Decomposer {
        template<typename T>
        auto operator <= (T const& lhs) -> ExprLhs<T const&> {
            return ExprLhs<T const&>(lhs);
        }
        auto operator <=(bool value) -> ExprLhs<bool> {
            return ExprLhs<bool>(value);
        }
    };

} // end namespace Catch

#ifdef _MSC_VER
#pragma warning(pop)
#endif

  // end catch_decomposer.h
  // start catch_assertioninfo.h

  // start catch_result_type.h

namespace Catch {

    // ResultWas::OfType enum
    struct ResultWas {
        enum OfType {
            Unknown = -1,
            Ok = 0,
            Info = 1,
            Warning = 2,

            FailureBit = 0x10,

            ExpressionFailed = FailureBit | 1,
            ExplicitFailure = FailureBit | 2,

            Exception = 0x100 | FailureBit,

            ThrewException = Exception | 1,
            DidntThrowException = Exception | 2,

            FatalErrorCondition = 0x200 | FailureBit

        };
    };

    bool isOk(ResultWas::OfType resultType);
    bool isJustInfo(int flags);

    // ResultDisposition::Flags enum
    struct ResultDisposition {
        enum Flags {
            Normal = 0x01,

            ContinueOnFailure = 0x02,   // Failures fail test, but execution continues
            FalseTest = 0x04,           // Prefix expression with !
            SuppressFail = 0x08         // Failures are reported but do not fail the test
        };
    };

    ResultDisposition::Flags operator | (ResultDisposition::Flags lhs, ResultDisposition::Flags rhs);

    bool shouldContinueOnFailure(int flags);
    bool isFalseTest(int flags);
    bool shouldSuppressFailure(int flags);

} // end namespace Catch

  // end catch_result_type.h
namespace Catch {

    struct AssertionInfo {
        StringRef macroName;
        SourceLineInfo lineInfo;
        StringRef capturedExpression;
        ResultDisposition::Flags resultDisposition;

        // We want to delete this constructor but a compiler bug in 4.8 means
        // the struct is then treated as non-aggregate
        //AssertionInfo() = delete;
    };

} // end namespace Catch

  // end catch_assertioninfo.h
namespace Catch {

    struct TestFailureException {};
    struct AssertionResultData;

    class LazyExpression {
        friend class AssertionHandler;
        friend struct AssertionStats;

        ITransientExpression const* m_transientExpression = nullptr;
        bool m_isNegated;
    public:
        LazyExpression(bool isNegated);
        LazyExpression(LazyExpression const& other);
        LazyExpression& operator = (LazyExpression const&) = delete;

        explicit operator bool() const;

        friend auto operator << (std::ostream& os, LazyExpression const& lazyExpr)->std::ostream&;
    };

    class AssertionHandler {
        AssertionInfo m_assertionInfo;
        bool m_shouldDebugBreak = false;
        bool m_shouldThrow = false;
        bool m_inExceptionGuard = false;

    public:
        AssertionHandler
        (StringRef macroName,
         SourceLineInfo const& lineInfo,
         StringRef capturedExpression,
         ResultDisposition::Flags resultDisposition);
        ~AssertionHandler();

        void handle(ITransientExpression const& expr);

        template<typename T>
        void handle(ExprLhs<T> const& expr) {
            handle(expr.makeUnaryExpr());
        }
        void handle(ResultWas::OfType resultType);
        void handle(ResultWas::OfType resultType, StringRef const& message);
        void handle(ResultWas::OfType resultType, ITransientExpression const* expr, bool negated);
        void handle(AssertionResultData const& resultData, ITransientExpression const* expr);

        auto shouldDebugBreak() const -> bool;
        auto allowThrows() const -> bool;
        void reactWithDebugBreak() const;
        void reactWithoutDebugBreak() const;
        void useActiveException();
        void setExceptionGuard();
        void unsetExceptionGuard();
    };

    void handleExceptionMatchExpr(AssertionHandler& handler, std::string const& str, StringRef matcherString);

} // namespace Catch

  // end catch_assertionhandler.h
  // start catch_message.h

#include <string>
#include <sstream>

namespace Catch {

    struct MessageInfo {
        MessageInfo(std::string const& _macroName,
                    SourceLineInfo const& _lineInfo,
                    ResultWas::OfType _type);

        std::string macroName;
        std::string message;
        SourceLineInfo lineInfo;
        ResultWas::OfType type;
        unsigned int sequence;

        bool operator == (MessageInfo const& other) const;
        bool operator < (MessageInfo const& other) const;
    private:
        static unsigned int globalCount;
    };

    struct MessageStream {

        template<typename T>
        MessageStream& operator << (T const& value) {
            m_stream << value;
            return *this;
        }

        // !TBD reuse a global/ thread-local stream
        std::ostringstream m_stream;
    };

    struct MessageBuilder : MessageStream {
        MessageBuilder(std::string const& macroName,
                       SourceLineInfo const& lineInfo,
                       ResultWas::OfType type);

        template<typename T>
        MessageBuilder& operator << (T const& value) {
            m_stream << value;
            return *this;
        }

        MessageInfo m_info;
    };

    class ScopedMessage {
    public:
        ScopedMessage(MessageBuilder const& builder);
        ~ScopedMessage();

        MessageInfo m_info;
    };

} // end namespace Catch

  // end catch_message.h
  // start catch_interfaces_capture.h

#include <string>

namespace Catch {

    class AssertionResult;
    struct AssertionInfo;
    struct SectionInfo;
    struct SectionEndInfo;
    struct MessageInfo;
    struct Counts;
    struct BenchmarkInfo;
    struct BenchmarkStats;

    struct IResultCapture {

        virtual ~IResultCapture();

        virtual void assertionStarting(AssertionInfo const& info) = 0;
        virtual void assertionEnded(AssertionResult const& result) = 0;
        virtual bool sectionStarted(SectionInfo const& sectionInfo,
                                    Counts& assertions) = 0;
        virtual void sectionEnded(SectionEndInfo const& endInfo) = 0;
        virtual void sectionEndedEarly(SectionEndInfo const& endInfo) = 0;

        virtual void benchmarkStarting(BenchmarkInfo const& info) = 0;
        virtual void benchmarkEnded(BenchmarkStats const& stats) = 0;

        virtual void pushScopedMessage(MessageInfo const& message) = 0;
        virtual void popScopedMessage(MessageInfo const& message) = 0;

        virtual std::string getCurrentTestName() const = 0;
        virtual const AssertionResult* getLastResult() const = 0;

        virtual void exceptionEarlyReported() = 0;

        virtual void handleFatalErrorCondition(StringRef message) = 0;

        virtual bool lastAssertionPassed() = 0;
        virtual void assertionPassed() = 0;
        virtual void assertionRun() = 0;
    };

    IResultCapture& getResultCapture();
}

// end catch_interfaces_capture.h
// start catch_debugger.h

namespace Catch {
    bool isDebuggerActive();
}

#ifdef CATCH_PLATFORM_MAC

#define CATCH_TRAP() __asm__("int $3\n" : : ) /* NOLINT */

#elif defined(CATCH_PLATFORM_LINUX)
// If we can use inline assembler, do it because this allows us to break
// directly at the location of the failing check instead of breaking inside
// raise() called from it, i.e. one stack frame below.
#if defined(__GNUC__) && (defined(__i386) || defined(__x86_64))
#define CATCH_TRAP() asm volatile ("int $3") /* NOLINT */
#else // Fall back to the generic way.
#include <signal.h>

#define CATCH_TRAP() raise(SIGTRAP)
#endif
#elif defined(_MSC_VER)
#define CATCH_TRAP() __debugbreak()
#elif defined(__MINGW32__)
extern "C" __declspec(dllimport) void __stdcall DebugBreak();
#define CATCH_TRAP() DebugBreak()
#endif

#ifdef CATCH_TRAP
#define CATCH_BREAK_INTO_DEBUGGER() if( Catch::isDebuggerActive() ) { CATCH_TRAP(); }
#else
#define CATCH_BREAK_INTO_DEBUGGER() Catch::alwaysTrue();
#endif

// end catch_debugger.h
#if !defined(CATCH_CONFIG_DISABLE)

#if !defined(CATCH_CONFIG_DISABLE_STRINGIFICATION)
#define CATCH_INTERNAL_STRINGIFY(...) #__VA_ARGS__
#else
#define CATCH_INTERNAL_STRINGIFY(...) "Disabled by CATCH_CONFIG_DISABLE_STRINGIFICATION"
#endif

#if defined(CATCH_CONFIG_FAST_COMPILE)
///////////////////////////////////////////////////////////////////////////////
// We can speedup compilation significantly by breaking into debugger lower in
// the callstack, because then we don't have to expand CATCH_BREAK_INTO_DEBUGGER
// macro in each assertion
#define INTERNAL_CATCH_REACT( handler ) \
    handler.reactWithDebugBreak();

///////////////////////////////////////////////////////////////////////////////
// Another way to speed-up compilation is to omit local try-catch for REQUIRE*
// macros.
// This can potentially cause false negative, if the test code catches
// the exception before it propagates back up to the runner.
#define INTERNAL_CATCH_TRY( capturer ) capturer.setExceptionGuard();
#define INTERNAL_CATCH_CATCH( capturer ) capturer.unsetExceptionGuard();

#else // CATCH_CONFIG_FAST_COMPILE

///////////////////////////////////////////////////////////////////////////////
// In the event of a failure works out if the debugger needs to be invoked
// and/or an exception thrown and takes appropriate action.
// This needs to be done as a macro so the debugger will stop in the user
// source code rather than in Catch library code
#define INTERNAL_CATCH_REACT( handler ) \
    if( handler.shouldDebugBreak() ) CATCH_BREAK_INTO_DEBUGGER(); \
    handler.reactWithoutDebugBreak();

#define INTERNAL_CATCH_TRY( capturer ) try
#define INTERNAL_CATCH_CATCH( capturer ) catch(...) { capturer.useActiveException(); }

#endif

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_TEST( macroName, resultDisposition, ... ) \
    do { \
        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition ); \
        INTERNAL_CATCH_TRY( catchAssertionHandler ) { \
            CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS \
            catchAssertionHandler.handle( Catch::Decomposer() <= __VA_ARGS__ ); \
            CATCH_INTERNAL_UNSUPPRESS_PARENTHESES_WARNINGS \
        } INTERNAL_CATCH_CATCH( catchAssertionHandler ) \
        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
    } while( Catch::isTrue( false && static_cast<bool>( !!(__VA_ARGS__) ) ) ) // the expression here is never evaluated at runtime but it forces the compiler to give it a look
// The double negation silences MSVC's C4800 warning, the static_cast forces short-circuit evaluation if the type has overloaded &&.

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_IF( macroName, resultDisposition, ... ) \
    INTERNAL_CATCH_TEST( macroName, resultDisposition, __VA_ARGS__ ); \
    if( Catch::getResultCapture().lastAssertionPassed() )

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_ELSE( macroName, resultDisposition, ... ) \
    INTERNAL_CATCH_TEST( macroName, resultDisposition, __VA_ARGS__ ); \
    if( !Catch::getResultCapture().lastAssertionPassed() )

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_NO_THROW( macroName, resultDisposition, ... ) \
    do { \
        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition ); \
        try { \
            static_cast<void>(__VA_ARGS__); \
            catchAssertionHandler.handle( Catch::ResultWas::Ok ); \
        } \
        catch( ... ) { \
            catchAssertionHandler.useActiveException(); \
        } \
        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
    } while( Catch::alwaysFalse() )

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_THROWS( macroName, resultDisposition, ... ) \
    do { \
        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition); \
        if( catchAssertionHandler.allowThrows() ) \
            try { \
                static_cast<void>(__VA_ARGS__); \
                catchAssertionHandler.handle( Catch::ResultWas::DidntThrowException ); \
            } \
            catch( ... ) { \
                catchAssertionHandler.handle( Catch::ResultWas::Ok ); \
            } \
        else \
            catchAssertionHandler.handle( Catch::ResultWas::Ok ); \
        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
    } while( Catch::alwaysFalse() )

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_THROWS_AS( macroName, exceptionType, resultDisposition, expr ) \
    do { \
        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(expr) ", " CATCH_INTERNAL_STRINGIFY(exceptionType), resultDisposition ); \
        if( catchAssertionHandler.allowThrows() ) \
            try { \
                static_cast<void>(expr); \
                catchAssertionHandler.handle( Catch::ResultWas::DidntThrowException ); \
            } \
            catch( exceptionType const& ) { \
                catchAssertionHandler.handle( Catch::ResultWas::Ok ); \
            } \
            catch( ... ) { \
                catchAssertionHandler.useActiveException(); \
            } \
        else \
            catchAssertionHandler.handle( Catch::ResultWas::Ok ); \
        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
    } while( Catch::alwaysFalse() )

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_MSG( macroName, messageType, resultDisposition, ... ) \
    do { \
        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, "", resultDisposition ); \
        catchAssertionHandler.handle( messageType, ( Catch::MessageStream() << __VA_ARGS__ + ::Catch::StreamEndStop() ).m_stream.str() ); \
        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
    } while( Catch::alwaysFalse() )

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_INFO( macroName, log ) \
    Catch::ScopedMessage INTERNAL_CATCH_UNIQUE_NAME( scopedMessage ) = Catch::MessageBuilder( macroName, CATCH_INTERNAL_LINEINFO, Catch::ResultWas::Info ) << log;

///////////////////////////////////////////////////////////////////////////////
// Although this is matcher-based, it can be used with just a string
#define INTERNAL_CATCH_THROWS_STR_MATCHES( macroName, resultDisposition, matcher, ... ) \
    do { \
        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition ); \
        if( catchAssertionHandler.allowThrows() ) \
            try { \
                static_cast<void>(__VA_ARGS__); \
                catchAssertionHandler.handle( Catch::ResultWas::DidntThrowException ); \
            } \
            catch( ... ) { \
                handleExceptionMatchExpr( catchAssertionHandler, matcher, #matcher ); \
            } \
        else \
            catchAssertionHandler.handle( Catch::ResultWas::Ok ); \
        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
    } while( Catch::alwaysFalse() )

#endif // CATCH_CONFIG_DISABLE

// end catch_capture.hpp
// start catch_section.h

// start catch_section_info.h

// start catch_totals.h

#include <cstddef>

namespace Catch {

    struct Counts {
        Counts operator - (Counts const& other) const;
        Counts& operator += (Counts const& other);

        std::size_t total() const;
        bool allPassed() const;
        bool allOk() const;

        std::size_t passed = 0;
        std::size_t failed = 0;
        std::size_t failedButOk = 0;
    };

    struct Totals {

        Totals operator - (Totals const& other) const;
        Totals& operator += (Totals const& other);

        Totals delta(Totals const& prevTotals) const;

        Counts assertions;
        Counts testCases;
    };
}

// end catch_totals.h
#include <string>

namespace Catch {

    struct SectionInfo {
        SectionInfo
        (SourceLineInfo const& _lineInfo,
         std::string const& _name,
         std::string const& _description = std::string());

        std::string name;
        std::string description;
        SourceLineInfo lineInfo;
    };

    struct SectionEndInfo {
        SectionEndInfo(SectionInfo const& _sectionInfo, Counts const& _prevAssertions, double _durationInSeconds);

        SectionInfo sectionInfo;
        Counts prevAssertions;
        double durationInSeconds;
    };

} // end namespace Catch

  // end catch_section_info.h
  // start catch_timer.h

#include <cstdint>

namespace Catch {

    auto getCurrentNanosecondsSinceEpoch()->uint64_t;
    auto getEstimatedClockResolution()->uint64_t;

    class Timer {
        uint64_t m_nanoseconds = 0;
    public:
        void start();
        auto getElapsedNanoseconds() const -> unsigned int;
        auto getElapsedMicroseconds() const -> unsigned int;
        auto getElapsedMilliseconds() const -> unsigned int;
        auto getElapsedSeconds() const -> double;
    };

} // namespace Catch

  // end catch_timer.h
#include <string>

namespace Catch {

    class Section : NonCopyable {
    public:
        Section(SectionInfo const& info);
        ~Section();

        // This indicates whether the section should be executed or not
        explicit operator bool() const;

    private:
        SectionInfo m_info;

        std::string m_name;
        Counts m_assertions;
        bool m_sectionIncluded;
        Timer m_timer;
    };

} // end namespace Catch

#define INTERNAL_CATCH_SECTION( ... ) \
        if( Catch::Section const& INTERNAL_CATCH_UNIQUE_NAME( catch_internal_Section ) = Catch::SectionInfo( CATCH_INTERNAL_LINEINFO, __VA_ARGS__ ) )

  // end catch_section.h
  // start catch_benchmark.h

#include <cstdint>
#include <string>

namespace Catch {

    class BenchmarkLooper {

        std::string m_name;
        std::size_t m_count = 0;
        std::size_t m_iterationsToRun = 1;
        uint64_t m_resolution;
        Timer m_timer;

        static auto getResolution()->uint64_t;
    public:
        // Keep most of this inline as it's on the code path that is being timed
        BenchmarkLooper(StringRef name)
            : m_name(name),
            m_resolution(getResolution()) {
            reportStart();
            m_timer.start();
        }

        explicit operator bool() {
            if (m_count < m_iterationsToRun)
                return true;
            return needsMoreIterations();
        }

        void increment() {
            ++m_count;
        }

        void reportStart();
        auto needsMoreIterations() -> bool;
    };

} // end namespace Catch

#define BENCHMARK( name ) \
    for( Catch::BenchmarkLooper looper( name ); looper; looper.increment() )

  // end catch_benchmark.h
  // start catch_interfaces_exception.h

  // start catch_interfaces_registry_hub.h

#include <string>
#include <memory>

namespace Catch {

    class TestCase;
    struct ITestCaseRegistry;
    struct IExceptionTranslatorRegistry;
    struct IExceptionTranslator;
    struct IReporterRegistry;
    struct IReporterFactory;
    struct ITagAliasRegistry;
    class StartupExceptionRegistry;

    using IReporterFactoryPtr = std::shared_ptr<IReporterFactory>;

    struct IRegistryHub {
        virtual ~IRegistryHub();

        virtual IReporterRegistry const& getReporterRegistry() const = 0;
        virtual ITestCaseRegistry const& getTestCaseRegistry() const = 0;
        virtual ITagAliasRegistry const& getTagAliasRegistry() const = 0;

        virtual IExceptionTranslatorRegistry& getExceptionTranslatorRegistry() = 0;

        virtual StartupExceptionRegistry const& getStartupExceptionRegistry() const = 0;
    };

    struct IMutableRegistryHub {
        virtual ~IMutableRegistryHub();
        virtual void registerReporter(std::string const& name, IReporterFactoryPtr const& factory) = 0;
        virtual void registerListener(IReporterFactoryPtr const& factory) = 0;
        virtual void registerTest(TestCase const& testInfo) = 0;
        virtual void registerTranslator(const IExceptionTranslator* translator) = 0;
        virtual void registerTagAlias(std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo) = 0;
        virtual void registerStartupException() noexcept = 0;
    };

    IRegistryHub& getRegistryHub();
    IMutableRegistryHub& getMutableRegistryHub();
    void cleanUp();
    std::string translateActiveException();

}

// end catch_interfaces_registry_hub.h
#if defined(CATCH_CONFIG_DISABLE)
#define INTERNAL_CATCH_TRANSLATE_EXCEPTION_NO_REG( translatorName, signature) \
        static std::string translatorName( signature )
#endif

#include <exception>
#include <string>
#include <vector>

namespace Catch {
    using exceptionTranslateFunction = std::string(*)();

    struct IExceptionTranslator;
    using ExceptionTranslators = std::vector<std::unique_ptr<IExceptionTranslator const>>;

    struct IExceptionTranslator {
        virtual ~IExceptionTranslator();
        virtual std::string translate(ExceptionTranslators::const_iterator it, ExceptionTranslators::const_iterator itEnd) const = 0;
    };

    struct IExceptionTranslatorRegistry {
        virtual ~IExceptionTranslatorRegistry();

        virtual std::string translateActiveException() const = 0;
    };

    class ExceptionTranslatorRegistrar {
        template<typename T>
        class ExceptionTranslator : public IExceptionTranslator {
        public:

            ExceptionTranslator(std::string(*translateFunction)(T&))
                : m_translateFunction(translateFunction) {
            }

            std::string translate(ExceptionTranslators::const_iterator it, ExceptionTranslators::const_iterator itEnd) const override {
                try {
                    if (it == itEnd)
                        std::rethrow_exception(std::current_exception());
                    else
                        return (*it)->translate(it + 1, itEnd);
                } catch (T& ex) {
                    return m_translateFunction(ex);
                }
            }

        protected:
            std::string(*m_translateFunction)(T&);
        };

    public:
        template<typename T>
        ExceptionTranslatorRegistrar(std::string(*translateFunction)(T&)) {
            getMutableRegistryHub().registerTranslator
            (new ExceptionTranslator<T>(translateFunction));
        }
    };
}

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_TRANSLATE_EXCEPTION2( translatorName, signature ) \
    static std::string translatorName( signature ); \
    namespace{ Catch::ExceptionTranslatorRegistrar INTERNAL_CATCH_UNIQUE_NAME( catch_internal_ExceptionRegistrar )( &translatorName ); }\
    static std::string translatorName( signature )

#define INTERNAL_CATCH_TRANSLATE_EXCEPTION( signature ) INTERNAL_CATCH_TRANSLATE_EXCEPTION2( INTERNAL_CATCH_UNIQUE_NAME( catch_internal_ExceptionTranslator ), signature )

// end catch_interfaces_exception.h
// start catch_approx.h

// start catch_enforce.h

#include <sstream>
#include <stdexcept>

#define CATCH_PREPARE_EXCEPTION( type, msg ) \
    type( static_cast<std::ostringstream&&>( std::ostringstream() << msg ).str() )
#define CATCH_INTERNAL_ERROR( msg ) \
    throw CATCH_PREPARE_EXCEPTION( std::logic_error, CATCH_INTERNAL_LINEINFO << ": Internal Catch error: " << msg);
#define CATCH_ERROR( msg ) \
    throw CATCH_PREPARE_EXCEPTION( std::domain_error, msg )
#define CATCH_ENFORCE( condition, msg ) \
    do{ if( !(condition) ) CATCH_ERROR( msg ); } while(false)

// end catch_enforce.h
#include <type_traits>

namespace Catch {
    namespace Detail {

        class Approx {
        private:
            bool equalityComparisonImpl(double other) const;

        public:
            explicit Approx(double value);

            static Approx custom();

            template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
            Approx operator()(T const& value) {
                Approx approx(static_cast<double>(value));
                approx.epsilon(m_epsilon);
                approx.margin(m_margin);
                approx.scale(m_scale);
                return approx;
            }

            template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
            explicit Approx(T const& value) : Approx(static_cast<double>(value)) {}

            template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
            friend bool operator == (const T& lhs, Approx const& rhs) {
                auto lhs_v = static_cast<double>(lhs);
                return rhs.equalityComparisonImpl(lhs_v);
            }

            template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
            friend bool operator == (Approx const& lhs, const T& rhs) {
                return operator==(rhs, lhs);
            }

            template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
            friend bool operator != (T const& lhs, Approx const& rhs) {
                return !operator==(lhs, rhs);
            }

            template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
            friend bool operator != (Approx const& lhs, T const& rhs) {
                return !operator==(rhs, lhs);
            }

            template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
            friend bool operator <= (T const& lhs, Approx const& rhs) {
                return static_cast<double>(lhs) < rhs.m_value || lhs == rhs;
            }

            template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
            friend bool operator <= (Approx const& lhs, T const& rhs) {
                return lhs.m_value < static_cast<double>(rhs) || lhs == rhs;
            }

            template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
            friend bool operator >= (T const& lhs, Approx const& rhs) {
                return static_cast<double>(lhs) > rhs.m_value || lhs == rhs;
            }

            template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
            friend bool operator >= (Approx const& lhs, T const& rhs) {
                return lhs.m_value > static_cast<double>(rhs) || lhs == rhs;
            }

            template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
            Approx& epsilon(T const& newEpsilon) {
                double epsilonAsDouble = static_cast<double>(newEpsilon);
                CATCH_ENFORCE(epsilonAsDouble >= 0 && epsilonAsDouble <= 1.0,
                              "Invalid Approx::epsilon: " << epsilonAsDouble
                              << ", Approx::epsilon has to be between 0 and 1");
                m_epsilon = epsilonAsDouble;
                return *this;
            }

            template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
            Approx& margin(T const& newMargin) {
                double marginAsDouble = static_cast<double>(newMargin);
                CATCH_ENFORCE(marginAsDouble >= 0,
                              "Invalid Approx::margin: " << marginAsDouble
                              << ", Approx::Margin has to be non-negative.");
                m_margin = marginAsDouble;
                return *this;
            }

            template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
            Approx& scale(T const& newScale) {
                m_scale = static_cast<double>(newScale);
                return *this;
            }

            std::string toString() const;

        private:
            double m_epsilon;
            double m_margin;
            double m_scale;
            double m_value;
        };
    }

    template<>
    struct StringMaker<Catch::Detail::Approx> {
        static std::string convert(Catch::Detail::Approx const& value);
    };

} // end namespace Catch

  // end catch_approx.h
  // start catch_string_manip.h

#include <string>
#include <iosfwd>

namespace Catch {

    bool startsWith(std::string const& s, std::string const& prefix);
    bool startsWith(std::string const& s, char prefix);
    bool endsWith(std::string const& s, std::string const& suffix);
    bool endsWith(std::string const& s, char suffix);
    bool contains(std::string const& s, std::string const& infix);
    void toLowerInPlace(std::string& s);
    std::string toLower(std::string const& s);
    std::string trim(std::string const& str);
    bool replaceInPlace(std::string& str, std::string const& replaceThis, std::string const& withThis);

    struct pluralise {
        pluralise(std::size_t count, std::string const& label);

        friend std::ostream& operator << (std::ostream& os, pluralise const& pluraliser);

        std::size_t m_count;
        std::string m_label;
    };
}

// end catch_string_manip.h
#ifndef CATCH_CONFIG_DISABLE_MATCHERS
// start catch_capture_matchers.h

// start catch_matchers.h

#include <string>
#include <vector>

namespace Catch {
    namespace Matchers {
        namespace Impl {

            template<typename ArgT> struct MatchAllOf;
            template<typename ArgT> struct MatchAnyOf;
            template<typename ArgT> struct MatchNotOf;

            class MatcherUntypedBase {
            public:
                MatcherUntypedBase() = default;
                MatcherUntypedBase(MatcherUntypedBase const&) = default;
                MatcherUntypedBase& operator = (MatcherUntypedBase const&) = delete;
                std::string toString() const;

            protected:
                virtual ~MatcherUntypedBase();
                virtual std::string describe() const = 0;
                mutable std::string m_cachedToString;
            };

            template<typename ObjectT>
            struct MatcherMethod {
                virtual bool match(ObjectT const& arg) const = 0;
            };
            template<typename PtrT>
            struct MatcherMethod<PtrT*> {
                virtual bool match(PtrT* arg) const = 0;
            };

            template<typename ObjectT, typename ComparatorT = ObjectT>
            struct MatcherBase : MatcherUntypedBase, MatcherMethod<ObjectT> {

                MatchAllOf<ComparatorT> operator && (MatcherBase const& other) const;
                MatchAnyOf<ComparatorT> operator || (MatcherBase const& other) const;
                MatchNotOf<ComparatorT> operator ! () const;
            };

            template<typename ArgT>
            struct MatchAllOf : MatcherBase<ArgT> {
                bool match(ArgT const& arg) const override {
                    for (auto matcher : m_matchers) {
                        if (!matcher->match(arg))
                            return false;
                    }
                    return true;
                }
                std::string describe() const override {
                    std::string description;
                    description.reserve(4 + m_matchers.size() * 32);
                    description += "( ";
                    bool first = true;
                    for (auto matcher : m_matchers) {
                        if (first)
                            first = false;
                        else
                            description += " and ";
                        description += matcher->toString();
                    }
                    description += " )";
                    return description;
                }

                MatchAllOf<ArgT>& operator && (MatcherBase<ArgT> const& other) {
                    m_matchers.push_back(&other);
                    return *this;
                }

                std::vector<MatcherBase<ArgT> const*> m_matchers;
            };
            template<typename ArgT>
            struct MatchAnyOf : MatcherBase<ArgT> {

                bool match(ArgT const& arg) const override {
                    for (auto matcher : m_matchers) {
                        if (matcher->match(arg))
                            return true;
                    }
                    return false;
                }
                std::string describe() const override {
                    std::string description;
                    description.reserve(4 + m_matchers.size() * 32);
                    description += "( ";
                    bool first = true;
                    for (auto matcher : m_matchers) {
                        if (first)
                            first = false;
                        else
                            description += " or ";
                        description += matcher->toString();
                    }
                    description += " )";
                    return description;
                }

                MatchAnyOf<ArgT>& operator || (MatcherBase<ArgT> const& other) {
                    m_matchers.push_back(&other);
                    return *this;
                }

                std::vector<MatcherBase<ArgT> const*> m_matchers;
            };

            template<typename ArgT>
            struct MatchNotOf : MatcherBase<ArgT> {

                MatchNotOf(MatcherBase<ArgT> const& underlyingMatcher) : m_underlyingMatcher(underlyingMatcher) {}

                bool match(ArgT const& arg) const override {
                    return !m_underlyingMatcher.match(arg);
                }

                std::string describe() const override {
                    return "not " + m_underlyingMatcher.toString();
                }
                MatcherBase<ArgT> const& m_underlyingMatcher;
            };

            template<typename ObjectT, typename ComparatorT>
            MatchAllOf<ComparatorT> MatcherBase<ObjectT, ComparatorT>::operator && (MatcherBase const& other) const {
                return MatchAllOf<ComparatorT>() && *this && other;
            }
            template<typename ObjectT, typename ComparatorT>
            MatchAnyOf<ComparatorT> MatcherBase<ObjectT, ComparatorT>::operator || (MatcherBase const& other) const {
                return MatchAnyOf<ComparatorT>() || *this || other;
            }
            template<typename ObjectT, typename ComparatorT>
            MatchNotOf<ComparatorT> MatcherBase<ObjectT, ComparatorT>::operator ! () const {
                return MatchNotOf<ComparatorT>(*this);
            }

        } // namespace Impl

    } // namespace Matchers

    using namespace Matchers;
    using Matchers::Impl::MatcherBase;

} // namespace Catch

  // end catch_matchers.h
  // start catch_matchers_string.h

#include <string>

namespace Catch {
    namespace Matchers {

        namespace StdString {

            struct CasedString {
                CasedString(std::string const& str, CaseSensitive::Choice caseSensitivity);
                std::string adjustString(std::string const& str) const;
                std::string caseSensitivitySuffix() const;

                CaseSensitive::Choice m_caseSensitivity;
                std::string m_str;
            };

            struct StringMatcherBase : MatcherBase<std::string> {
                StringMatcherBase(std::string const& operation, CasedString const& comparator);
                std::string describe() const override;

                CasedString m_comparator;
                std::string m_operation;
            };

            struct EqualsMatcher : StringMatcherBase {
                EqualsMatcher(CasedString const& comparator);
                bool match(std::string const& source) const override;
            };
            struct ContainsMatcher : StringMatcherBase {
                ContainsMatcher(CasedString const& comparator);
                bool match(std::string const& source) const override;
            };
            struct StartsWithMatcher : StringMatcherBase {
                StartsWithMatcher(CasedString const& comparator);
                bool match(std::string const& source) const override;
            };
            struct EndsWithMatcher : StringMatcherBase {
                EndsWithMatcher(CasedString const& comparator);
                bool match(std::string const& source) const override;
            };

        } // namespace StdString

          // The following functions create the actual matcher objects.
          // This allows the types to be inferred

        StdString::EqualsMatcher Equals(std::string const& str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes);
        StdString::ContainsMatcher Contains(std::string const& str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes);
        StdString::EndsWithMatcher EndsWith(std::string const& str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes);
        StdString::StartsWithMatcher StartsWith(std::string const& str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes);

    } // namespace Matchers
} // namespace Catch

  // end catch_matchers_string.h
  // start catch_matchers_vector.h

namespace Catch {
    namespace Matchers {

        namespace Vector {

            template<typename T>
            struct ContainsElementMatcher : MatcherBase<std::vector<T>, T> {

                ContainsElementMatcher(T const &comparator) : m_comparator(comparator) {}

                bool match(std::vector<T> const &v) const override {
                    for (auto const& el : v) {
                        if (el == m_comparator) {
                            return true;
                        }
                    }
                    return false;
                }

                std::string describe() const override {
                    return "Contains: " + ::Catch::Detail::stringify(m_comparator);
                }

                T const& m_comparator;
            };

            template<typename T>
            struct ContainsMatcher : MatcherBase<std::vector<T>, std::vector<T> > {

                ContainsMatcher(std::vector<T> const &comparator) : m_comparator(comparator) {}

                bool match(std::vector<T> const &v) const override {
                    // !TBD: see note in EqualsMatcher
                    if (m_comparator.size() > v.size())
                        return false;
                    for (auto const& comparator : m_comparator) {
                        auto present = false;
                        for (const auto& el : v) {
                            if (el == comparator) {
                                present = true;
                                break;
                            }
                        }
                        if (!present) {
                            return false;
                        }
                    }
                    return true;
                }
                std::string describe() const override {
                    return "Contains: " + ::Catch::Detail::stringify(m_comparator);
                }

                std::vector<T> const& m_comparator;
            };

            template<typename T>
            struct EqualsMatcher : MatcherBase<std::vector<T>, std::vector<T> > {

                EqualsMatcher(std::vector<T> const &comparator) : m_comparator(comparator) {}

                bool match(std::vector<T> const &v) const override {
                    // !TBD: This currently works if all elements can be compared using !=
                    // - a more general approach would be via a compare template that defaults
                    // to using !=. but could be specialised for, e.g. std::vector<T> etc
                    // - then just call that directly
                    if (m_comparator.size() != v.size())
                        return false;
                    for (std::size_t i = 0; i < v.size(); ++i)
                        if (m_comparator[i] != v[i])
                            return false;
                    return true;
                }
                std::string describe() const override {
                    return "Equals: " + ::Catch::Detail::stringify(m_comparator);
                }
                std::vector<T> const& m_comparator;
            };

        } // namespace Vector

          // The following functions create the actual matcher objects.
          // This allows the types to be inferred

        template<typename T>
        Vector::ContainsMatcher<T> Contains(std::vector<T> const& comparator) {
            return Vector::ContainsMatcher<T>(comparator);
        }

        template<typename T>
        Vector::ContainsElementMatcher<T> VectorContains(T const& comparator) {
            return Vector::ContainsElementMatcher<T>(comparator);
        }

        template<typename T>
        Vector::EqualsMatcher<T> Equals(std::vector<T> const& comparator) {
            return Vector::EqualsMatcher<T>(comparator);
        }

    } // namespace Matchers
} // namespace Catch

  // end catch_matchers_vector.h
namespace Catch {

    template<typename ArgT, typename MatcherT>
    class MatchExpr : public ITransientExpression {
        ArgT const& m_arg;
        MatcherT m_matcher;
        StringRef m_matcherString;
        bool m_result;
    public:
        MatchExpr(ArgT const& arg, MatcherT const& matcher, StringRef matcherString)
            : m_arg(arg),
            m_matcher(matcher),
            m_matcherString(matcherString),
            m_result(matcher.match(arg)) {
        }

        auto isBinaryExpression() const -> bool  override { return true; }
        auto getResult() const -> bool override { return m_result; }

        void streamReconstructedExpression(std::ostream &os) const override {
            auto matcherAsString = m_matcher.toString();
            os << Catch::Detail::stringify(m_arg) << ' ';
            if (matcherAsString == Detail::unprintableString)
                os << m_matcherString;
            else
                os << matcherAsString;
        }
    };

    using StringMatcher = Matchers::Impl::MatcherBase<std::string>;

    void handleExceptionMatchExpr(AssertionHandler& handler, StringMatcher const& matcher, StringRef matcherString);

    template<typename ArgT, typename MatcherT>
    auto makeMatchExpr(ArgT const& arg, MatcherT const& matcher, StringRef matcherString) -> MatchExpr<ArgT, MatcherT> {
        return MatchExpr<ArgT, MatcherT>(arg, matcher, matcherString);
    }

} // namespace Catch

  ///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CHECK_THAT( macroName, matcher, resultDisposition, arg ) \
    do { \
        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(arg) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition ); \
        INTERNAL_CATCH_TRY( catchAssertionHandler ) { \
            catchAssertionHandler.handle( Catch::makeMatchExpr( arg, matcher, #matcher ) ); \
        } INTERNAL_CATCH_CATCH( catchAssertionHandler ) \
        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
    } while( Catch::alwaysFalse() )

  ///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_THROWS_MATCHES( macroName, exceptionType, resultDisposition, matcher, ... ) \
    do { \
        Catch::AssertionHandler catchAssertionHandler( macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__) ", " CATCH_INTERNAL_STRINGIFY(exceptionType) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition ); \
        if( catchAssertionHandler.allowThrows() ) \
            try { \
                static_cast<void>(__VA_ARGS__ ); \
                catchAssertionHandler.handle( Catch::ResultWas::DidntThrowException ); \
            } \
            catch( exceptionType const& ex ) { \
                catchAssertionHandler.handle( Catch::makeMatchExpr( ex, matcher, #matcher ) ); \
            } \
            catch( ... ) { \
                catchAssertionHandler.useActiveException(); \
            } \
        else \
            catchAssertionHandler.handle( Catch::ResultWas::Ok ); \
        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
    } while( Catch::alwaysFalse() )

  // end catch_capture_matchers.h
#endif

  // These files are included here so the single_include script doesn't put them
  // in the conditionally compiled sections
  // start catch_test_case_info.h

#include <string>
#include <vector>
#include <memory>

#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wpadded"
#endif

namespace Catch {

    struct ITestInvoker;

    struct TestCaseInfo {
        enum SpecialProperties {
            None = 0,
            IsHidden = 1 << 1,
            ShouldFail = 1 << 2,
            MayFail = 1 << 3,
            Throws = 1 << 4,
            NonPortable = 1 << 5,
            Benchmark = 1 << 6
        };

        TestCaseInfo(std::string const& _name,
                     std::string const& _className,
                     std::string const& _description,
                     std::vector<std::string> const& _tags,
                     SourceLineInfo const& _lineInfo);

        friend void setTags(TestCaseInfo& testCaseInfo, std::vector<std::string> tags);

        bool isHidden() const;
        bool throws() const;
        bool okToFail() const;
        bool expectedToFail() const;

        std::string tagsAsString() const;

        std::string name;
        std::string className;
        std::string description;
        std::vector<std::string> tags;
        std::vector<std::string> lcaseTags;
        SourceLineInfo lineInfo;
        SpecialProperties properties;
    };

    class TestCase : public TestCaseInfo {
    public:

        TestCase(ITestInvoker* testCase, TestCaseInfo const& info);

        TestCase withName(std::string const& _newName) const;

        void invoke() const;

        TestCaseInfo const& getTestCaseInfo() const;

        bool operator == (TestCase const& other) const;
        bool operator < (TestCase const& other) const;

    private:
        std::shared_ptr<ITestInvoker> test;
    };

    TestCase makeTestCase(ITestInvoker* testCase,
                          std::string const& className,
                          std::string const& name,
                          std::string const& description,
                          SourceLineInfo const& lineInfo);
}

#ifdef __clang__
#pragma clang diagnostic pop
#endif

// end catch_test_case_info.h
// start catch_interfaces_runner.h

namespace Catch {

    struct IRunner {
        virtual ~IRunner();
        virtual bool aborting() const = 0;
    };
}

// end catch_interfaces_runner.h

#ifdef __OBJC__
// start catch_objc.hpp

#import <objc/runtime.h>

#include <string>

// NB. Any general catch headers included here must be included
// in catch.hpp first to make sure they are included by the single
// header for non obj-usage

///////////////////////////////////////////////////////////////////////////////
// This protocol is really only here for (self) documenting purposes, since
// all its methods are optional.
@protocol OcFixture

@optional

- (void)setUp;
-(void)tearDown;

@end

namespace Catch {

    class OcMethod : public ITestInvoker {

    public:
        OcMethod(Class cls, SEL sel) : m_cls(cls), m_sel(sel) {}

        virtual void invoke() const {
            id obj = [[m_cls alloc] init];

            performOptionalSelector(obj, @selector(setUp)  );
            performOptionalSelector(obj, m_sel);
            performOptionalSelector(obj, @selector(tearDown)  );

            arcSafeRelease(obj);
        }
    private:
        virtual ~OcMethod() {}

        Class m_cls;
        SEL m_sel;
    };

    namespace Detail {

        inline std::string getAnnotation(Class cls,
                                         std::string const& annotationName,
                                         std::string const& testCaseName) {
            NSString* selStr = [[NSString alloc] initWithFormat:@"Catch_%s_%s", annotationName.c_str(), testCaseName.c_str()];
                SEL sel = NSSelectorFromString(selStr);
            arcSafeRelease(selStr);
            id value = performOptionalSelector(cls, sel);
            if (value)
                return[(NSString*)value UTF8String];
            return "";
        }
    }

    inline std::size_t registerTestMethods() {
        std::size_t noTestMethods = 0;
        int noClasses = objc_getClassList(nullptr, 0);

        Class* classes = (CATCH_UNSAFE_UNRETAINED Class *)malloc(sizeof(Class) * noClasses);
        objc_getClassList(classes, noClasses);

        for (int c = 0; c < noClasses; c++) {
            Class cls = classes[c];
            {
                u_int count;
                Method* methods = class_copyMethodList(cls, &count);
                for (u_int m = 0; m < count; m++) {
                    SEL selector = method_getName(methods[m]);
                    std::string methodName = sel_getName(selector);
                    if (startsWith(methodName, "Catch_TestCase_")) {
                        std::string testCaseName = methodName.substr(15);
                        std::string name = Detail::getAnnotation(cls, "Name", testCaseName);
                        std::string desc = Detail::getAnnotation(cls, "Description", testCaseName);
                        const char* className = class_getName(cls);

                        getMutableRegistryHub().registerTest(makeTestCase(new OcMethod(cls, selector), className, name.c_str(), desc.c_str(), SourceLineInfo("", 0)));
                        noTestMethods++;
                    }
                }
                free(methods);
            }
        }
        return noTestMethods;
    }

#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)

    namespace Matchers {
        namespace Impl {
            namespace NSStringMatchers {

                struct StringHolder : MatcherBase<NSString*> {
                    StringHolder(NSString* substr) : m_substr([substr copy]) {}
                    StringHolder(StringHolder const& other) : m_substr([other.m_substr copy]) {}
                    StringHolder() {
                        arcSafeRelease(m_substr);
                    }

                    bool match(NSString* arg) const override {
                        return false;
                    }

                    NSString* CATCH_ARC_STRONG m_substr;
                };

                struct Equals : StringHolder {
                    Equals(NSString* substr) : StringHolder(substr) {}

                    bool match(NSString* str) const override {
                        return  (str != nil || m_substr == nil) &&
                            [str isEqualToString : m_substr];
                    }

                    std::string describe() const override {
                        return "equals string: " + Catch::Detail::stringify(m_substr);
                    }
                };

                struct Contains : StringHolder {
                    Contains(NSString* substr) : StringHolder(substr) {}

                    bool match(NSString* str) const {
                        return  (str != nil || m_substr == nil) &&
                            [str rangeOfString : m_substr].location != NSNotFound;
                    }

                    std::string describe() const override {
                        return "contains string: " + Catch::Detail::stringify(m_substr);
                    }
                };

                struct StartsWith : StringHolder {
                    StartsWith(NSString* substr) : StringHolder(substr) {}

                    bool match(NSString* str) const override {
                        return  (str != nil || m_substr == nil) &&
                            [str rangeOfString : m_substr].location == 0;
                    }

                    std::string describe() const override {
                        return "starts with: " + Catch::Detail::stringify(m_substr);
                    }
                };
                struct EndsWith : StringHolder {
                    EndsWith(NSString* substr) : StringHolder(substr) {}

                    bool match(NSString* str) const override {
                        return  (str != nil || m_substr == nil) &&
                            [str rangeOfString : m_substr].location == [str length] - [m_substr length];
                    }

                    std::string describe() const override {
                        return "ends with: " + Catch::Detail::stringify(m_substr);
                    }
                };

            } // namespace NSStringMatchers
        } // namespace Impl

        inline Impl::NSStringMatchers::Equals
            Equals(NSString* substr) { return Impl::NSStringMatchers::Equals(substr); }

        inline Impl::NSStringMatchers::Contains
            Contains(NSString* substr) { return Impl::NSStringMatchers::Contains(substr); }

        inline Impl::NSStringMatchers::StartsWith
            StartsWith(NSString* substr) { return Impl::NSStringMatchers::StartsWith(substr); }

        inline Impl::NSStringMatchers::EndsWith
            EndsWith(NSString* substr) { return Impl::NSStringMatchers::EndsWith(substr); }

    } // namespace Matchers

    using namespace Matchers;

#endif // CATCH_CONFIG_DISABLE_MATCHERS

} // namespace Catch

  ///////////////////////////////////////////////////////////////////////////////
#define OC_MAKE_UNIQUE_NAME( root, uniqueSuffix ) root##uniqueSuffix
#define OC_TEST_CASE2( name, desc, uniqueSuffix ) \
+(NSString*) OC_MAKE_UNIQUE_NAME( Catch_Name_test_, uniqueSuffix ) \
{ \
return @ name; \
} \
+(NSString*) OC_MAKE_UNIQUE_NAME( Catch_Description_test_, uniqueSuffix ) \
{ \
return @ desc; \
} \
-(void) OC_MAKE_UNIQUE_NAME( Catch_TestCase_test_, uniqueSuffix )

#define OC_TEST_CASE( name, desc ) OC_TEST_CASE2( name, desc, __LINE__ )

  // end catch_objc.hpp
#endif

#ifdef CATCH_CONFIG_EXTERNAL_INTERFACES
  // start catch_external_interfaces.h

  // start catch_reporter_bases.hpp

  // start catch_interfaces_reporter.h

  // start catch_config.hpp

  // start catch_test_spec_parser.h

#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wpadded"
#endif

  // start catch_test_spec.h

#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wpadded"
#endif

  // start catch_wildcard_pattern.h

namespace Catch {
    class WildcardPattern {
        enum WildcardPosition {
            NoWildcard = 0,
            WildcardAtStart = 1,
            WildcardAtEnd = 2,
            WildcardAtBothEnds = WildcardAtStart | WildcardAtEnd
        };

    public:

        WildcardPattern(std::string const& pattern, CaseSensitive::Choice caseSensitivity);
        virtual ~WildcardPattern() = default;
        virtual bool matches(std::string const& str) const;

    private:
        std::string adjustCase(std::string const& str) const;
        CaseSensitive::Choice m_caseSensitivity;
        WildcardPosition m_wildcard = NoWildcard;
        std::string m_pattern;
    };
}

// end catch_wildcard_pattern.h
#include <string>
#include <vector>
#include <memory>

namespace Catch {

    class TestSpec {
        struct Pattern {
            virtual ~Pattern();
            virtual bool matches(TestCaseInfo const& testCase) const = 0;
        };
        using PatternPtr = std::shared_ptr<Pattern>;

        class NamePattern : public Pattern {
        public:
            NamePattern(std::string const& name);
            virtual ~NamePattern();
            virtual bool matches(TestCaseInfo const& testCase) const override;
        private:
            WildcardPattern m_wildcardPattern;
        };

        class TagPattern : public Pattern {
        public:
            TagPattern(std::string const& tag);
            virtual ~TagPattern();
            virtual bool matches(TestCaseInfo const& testCase) const override;
        private:
            std::string m_tag;
        };

        class ExcludedPattern : public Pattern {
        public:
            ExcludedPattern(PatternPtr const& underlyingPattern);
            virtual ~ExcludedPattern();
            virtual bool matches(TestCaseInfo const& testCase) const override;
        private:
            PatternPtr m_underlyingPattern;
        };

        struct Filter {
            std::vector<PatternPtr> m_patterns;

            bool matches(TestCaseInfo const& testCase) const;
        };

    public:
        bool hasFilters() const;
        bool matches(TestCaseInfo const& testCase) const;

    private:
        std::vector<Filter> m_filters;

        friend class TestSpecParser;
    };
}

#ifdef __clang__
#pragma clang diagnostic pop
#endif

// end catch_test_spec.h
// start catch_interfaces_tag_alias_registry.h

#include <string>

namespace Catch {

    struct TagAlias;

    struct ITagAliasRegistry {
        virtual ~ITagAliasRegistry();
        // Nullptr if not present
        virtual TagAlias const* find(std::string const& alias) const = 0;
        virtual std::string expandAliases(std::string const& unexpandedTestSpec) const = 0;

        static ITagAliasRegistry const& get();
    };

} // end namespace Catch

  // end catch_interfaces_tag_alias_registry.h
namespace Catch {

    class TestSpecParser {
        enum Mode { None, Name, QuotedName, Tag, EscapedName };
        Mode m_mode = None;
        bool m_exclusion = false;
        std::size_t m_start = std::string::npos, m_pos = 0;
        std::string m_arg;
        std::vector<std::size_t> m_escapeChars;
        TestSpec::Filter m_currentFilter;
        TestSpec m_testSpec;
        ITagAliasRegistry const* m_tagAliases = nullptr;

    public:
        TestSpecParser(ITagAliasRegistry const& tagAliases);

        TestSpecParser& parse(std::string const& arg);
        TestSpec testSpec();

    private:
        void visitChar(char c);
        void startNewMode(Mode mode, std::size_t start);
        void escape();
        std::string subString() const;

        template<typename T>
        void addPattern() {
            std::string token = subString();
            for (std::size_t i = 0; i < m_escapeChars.size(); ++i)
                token = token.substr(0, m_escapeChars[i] - m_start - i) + token.substr(m_escapeChars[i] - m_start - i + 1);
            m_escapeChars.clear();
            if (startsWith(token, "exclude:")) {
                m_exclusion = true;
                token = token.substr(8);
            }
            if (!token.empty()) {
                TestSpec::PatternPtr pattern = std::make_shared<T>(token);
                if (m_exclusion)
                    pattern = std::make_shared<TestSpec::ExcludedPattern>(pattern);
                m_currentFilter.m_patterns.push_back(pattern);
            }
            m_exclusion = false;
            m_mode = None;
        }

        void addFilter();
    };
    TestSpec parseTestSpec(std::string const& arg);

} // namespace Catch

#ifdef __clang__
#pragma clang diagnostic pop
#endif

  // end catch_test_spec_parser.h
  // start catch_interfaces_config.h

#include <iosfwd>
#include <string>
#include <vector>
#include <memory>

namespace Catch {

    enum class Verbosity {
        Quiet = 0,
        Normal,
        High
    };

    struct WarnAbout {
        enum What {
            Nothing = 0x00,
            NoAssertions = 0x01
        };
    };

    struct ShowDurations {
        enum OrNot {
            DefaultForReporter,
            Always,
            Never
        };
    };
    struct RunTests {
        enum InWhatOrder {
            InDeclarationOrder,
            InLexicographicalOrder,
            InRandomOrder
        };
    };
    struct UseColour {
        enum YesOrNo {
            Auto,
            Yes,
            No
        };
    };
    struct WaitForKeypress {
        enum When {
            Never,
            BeforeStart = 1,
            BeforeExit = 2,
            BeforeStartAndExit = BeforeStart | BeforeExit
        };
    };

    class TestSpec;

    struct IConfig : NonCopyable {

        virtual ~IConfig();

        virtual bool allowThrows() const = 0;
        virtual std::ostream& stream() const = 0;
        virtual std::string name() const = 0;
        virtual bool includeSuccessfulResults() const = 0;
        virtual bool shouldDebugBreak() const = 0;
        virtual bool warnAboutMissingAssertions() const = 0;
        virtual int abortAfter() const = 0;
        virtual bool showInvisibles() const = 0;
        virtual ShowDurations::OrNot showDurations() const = 0;
        virtual TestSpec const& testSpec() const = 0;
        virtual RunTests::InWhatOrder runOrder() const = 0;
        virtual unsigned int rngSeed() const = 0;
        virtual int benchmarkResolutionMultiple() const = 0;
        virtual UseColour::YesOrNo useColour() const = 0;
        virtual std::vector<std::string> const& getSectionsToRun() const = 0;
        virtual Verbosity verbosity() const = 0;
    };

    using IConfigPtr = std::shared_ptr<IConfig const>;
}

// end catch_interfaces_config.h
// Libstdc++ doesn't like incomplete classes for unique_ptr
// start catch_stream.h

// start catch_streambuf.h

#include <streambuf>

namespace Catch {

    class StreamBufBase : public std::streambuf {
    public:
        virtual ~StreamBufBase();
    };
}

// end catch_streambuf.h
#include <streambuf>
#include <ostream>
#include <fstream>
#include <memory>

namespace Catch {

    std::ostream& cout();
    std::ostream& cerr();
    std::ostream& clog();

    struct IStream {
        virtual ~IStream();
        virtual std::ostream& stream() const = 0;
    };

    class FileStream : public IStream {
        mutable std::ofstream m_ofs;
    public:
        FileStream(std::string const& filename);
        ~FileStream() override = default;
    public: // IStream
        std::ostream& stream() const override;
    };

    class CoutStream : public IStream {
        mutable std::ostream m_os;
    public:
        CoutStream();
        ~CoutStream() override = default;

    public: // IStream
        std::ostream& stream() const override;
    };

    class DebugOutStream : public IStream {
        std::unique_ptr<StreamBufBase> m_streamBuf;
        mutable std::ostream m_os;
    public:
        DebugOutStream();
        ~DebugOutStream() override = default;

    public: // IStream
        std::ostream& stream() const override;
    };
}

// end catch_stream.h

#include <memory>
#include <vector>
#include <string>

#ifndef CATCH_CONFIG_CONSOLE_WIDTH
#define CATCH_CONFIG_CONSOLE_WIDTH 80
#endif

namespace Catch {

    struct IStream;

    struct ConfigData {
        bool listTests = false;
        bool listTags = false;
        bool listReporters = false;
        bool listTestNamesOnly = false;

        bool showSuccessfulTests = false;
        bool shouldDebugBreak = false;
        bool noThrow = false;
        bool showHelp = false;
        bool showInvisibles = false;
        bool filenamesAsTags = false;
        bool libIdentify = false;

        int abortAfter = -1;
        unsigned int rngSeed = 0;
        int benchmarkResolutionMultiple = 100;

        Verbosity verbosity = Verbosity::Normal;
        WarnAbout::What warnings = WarnAbout::Nothing;
        ShowDurations::OrNot showDurations = ShowDurations::DefaultForReporter;
        RunTests::InWhatOrder runOrder = RunTests::InDeclarationOrder;
        UseColour::YesOrNo useColour = UseColour::Auto;
        WaitForKeypress::When waitForKeypress = WaitForKeypress::Never;

        std::string outputFilename;
        std::string name;
        std::string processName;

        std::vector<std::string> reporterNames;
        std::vector<std::string> testsOrTags;
        std::vector<std::string> sectionsToRun;
    };

    class Config : public IConfig {
    public:

        Config() = default;
        Config(ConfigData const& data);
        virtual ~Config() = default;

        std::string const& getFilename() const;

        bool listTests() const;
        bool listTestNamesOnly() const;
        bool listTags() const;
        bool listReporters() const;

        std::string getProcessName() const;

        std::vector<std::string> const& getReporterNames() const;
        std::vector<std::string> const& getSectionsToRun() const override;

        virtual TestSpec const& testSpec() const override;

        bool showHelp() const;

        // IConfig interface
        bool allowThrows() const override;
        std::ostream& stream() const override;
        std::string name() const override;
        bool includeSuccessfulResults() const override;
        bool warnAboutMissingAssertions() const override;
        ShowDurations::OrNot showDurations() const override;
        RunTests::InWhatOrder runOrder() const override;
        unsigned int rngSeed() const override;
        int benchmarkResolutionMultiple() const override;
        UseColour::YesOrNo useColour() const override;
        bool shouldDebugBreak() const override;
        int abortAfter() const override;
        bool showInvisibles() const override;
        Verbosity verbosity() const override;

    private:

        IStream const* openStream();
        ConfigData m_data;

        std::unique_ptr<IStream const> m_stream;
        TestSpec m_testSpec;
    };

} // end namespace Catch

  // end catch_config.hpp
  // start catch_assertionresult.h

#include <string>

namespace Catch {

    struct AssertionResultData {
        AssertionResultData() = delete;

        AssertionResultData(ResultWas::OfType _resultType, LazyExpression const& _lazyExpression);

        std::string message;
        mutable std::string reconstructedExpression;
        LazyExpression lazyExpression;
        ResultWas::OfType resultType;

        std::string reconstructExpression() const;
    };

    class AssertionResult {
    public:
        AssertionResult() = delete;
        AssertionResult(AssertionInfo const& info, AssertionResultData const& data);

        bool isOk() const;
        bool succeeded() const;
        ResultWas::OfType getResultType() const;
        bool hasExpression() const;
        bool hasMessage() const;
        std::string getExpression() const;
        std::string getExpressionInMacro() const;
        bool hasExpandedExpression() const;
        std::string getExpandedExpression() const;
        std::string getMessage() const;
        SourceLineInfo getSourceInfo() const;
        std::string getTestMacroName() const;

        //protected:
        AssertionInfo m_info;
        AssertionResultData m_resultData;
    };

} // end namespace Catch

  // end catch_assertionresult.h
  // start catch_option.hpp

namespace Catch {

    // An optional type
    template<typename T>
    class Option {
    public:
        Option() : nullableValue(nullptr) {}
        Option(T const& _value)
            : nullableValue(new(storage) T(_value)) {
        }
        Option(Option const& _other)
            : nullableValue(_other ? new(storage) T(*_other) : nullptr) {
        }

        ~Option() {
            reset();
        }

        Option& operator= (Option const& _other) {
            if (&_other != this) {
                reset();
                if (_other)
                    nullableValue = new(storage) T(*_other);
            }
            return *this;
        }
        Option& operator = (T const& _value) {
            reset();
            nullableValue = new(storage) T(_value);
            return *this;
        }

        void reset() {
            if (nullableValue)
                nullableValue->~T();
            nullableValue = nullptr;
        }

        T& operator*() { return *nullableValue; }
        T const& operator*() const { return *nullableValue; }
        T* operator->() { return nullableValue; }
        const T* operator->() const { return nullableValue; }

        T valueOr(T const& defaultValue) const {
            return nullableValue ? *nullableValue : defaultValue;
        }

        bool some() const { return nullableValue != nullptr; }
        bool none() const { return nullableValue == nullptr; }

        bool operator !() const { return nullableValue == nullptr; }
        explicit operator bool() const {
            return some();
        }

    private:
        T *nullableValue;
        alignas(alignof(T)) char storage[sizeof(T)];
    };

} // end namespace Catch

  // end catch_option.hpp
#include <string>
#include <iosfwd>
#include <map>
#include <set>
#include <memory>

namespace Catch {

    struct ReporterConfig {
        explicit ReporterConfig(IConfigPtr const& _fullConfig);

        ReporterConfig(IConfigPtr const& _fullConfig, std::ostream& _stream);

        std::ostream& stream() const;
        IConfigPtr fullConfig() const;

    private:
        std::ostream* m_stream;
        IConfigPtr m_fullConfig;
    };

    struct ReporterPreferences {
        bool shouldRedirectStdOut = false;
    };

    template<typename T>
    struct LazyStat : Option<T> {
        LazyStat& operator=(T const& _value) {
            Option<T>::operator=(_value);
            used = false;
            return *this;
        }
        void reset() {
            Option<T>::reset();
            used = false;
        }
        bool used = false;
    };

    struct TestRunInfo {
        TestRunInfo(std::string const& _name);
        std::string name;
    };
    struct GroupInfo {
        GroupInfo(std::string const& _name,
                  std::size_t _groupIndex,
                  std::size_t _groupsCount);

        std::string name;
        std::size_t groupIndex;
        std::size_t groupsCounts;
    };

    struct AssertionStats {
        AssertionStats(AssertionResult const& _assertionResult,
                       std::vector<MessageInfo> const& _infoMessages,
                       Totals const& _totals);

        AssertionStats(AssertionStats const&) = default;
        AssertionStats(AssertionStats &&) = default;
        AssertionStats& operator = (AssertionStats const&) = default;
        AssertionStats& operator = (AssertionStats &&) = default;
        virtual ~AssertionStats();

        AssertionResult assertionResult;
        std::vector<MessageInfo> infoMessages;
        Totals totals;
    };

    struct SectionStats {
        SectionStats(SectionInfo const& _sectionInfo,
                     Counts const& _assertions,
                     double _durationInSeconds,
                     bool _missingAssertions);
        SectionStats(SectionStats const&) = default;
        SectionStats(SectionStats &&) = default;
        SectionStats& operator = (SectionStats const&) = default;
        SectionStats& operator = (SectionStats &&) = default;
        virtual ~SectionStats();

        SectionInfo sectionInfo;
        Counts assertions;
        double durationInSeconds;
        bool missingAssertions;
    };

    struct TestCaseStats {
        TestCaseStats(TestCaseInfo const& _testInfo,
                      Totals const& _totals,
                      std::string const& _stdOut,
                      std::string const& _stdErr,
                      bool _aborting);

        TestCaseStats(TestCaseStats const&) = default;
        TestCaseStats(TestCaseStats &&) = default;
        TestCaseStats& operator = (TestCaseStats const&) = default;
        TestCaseStats& operator = (TestCaseStats &&) = default;
        virtual ~TestCaseStats();

        TestCaseInfo testInfo;
        Totals totals;
        std::string stdOut;
        std::string stdErr;
        bool aborting;
    };

    struct TestGroupStats {
        TestGroupStats(GroupInfo const& _groupInfo,
                       Totals const& _totals,
                       bool _aborting);
        TestGroupStats(GroupInfo const& _groupInfo);

        TestGroupStats(TestGroupStats const&) = default;
        TestGroupStats(TestGroupStats &&) = default;
        TestGroupStats& operator = (TestGroupStats const&) = default;
        TestGroupStats& operator = (TestGroupStats &&) = default;
        virtual ~TestGroupStats();

        GroupInfo groupInfo;
        Totals totals;
        bool aborting;
    };

    struct TestRunStats {
        TestRunStats(TestRunInfo const& _runInfo,
                     Totals const& _totals,
                     bool _aborting);

        TestRunStats(TestRunStats const&) = default;
        TestRunStats(TestRunStats &&) = default;
        TestRunStats& operator = (TestRunStats const&) = default;
        TestRunStats& operator = (TestRunStats &&) = default;
        virtual ~TestRunStats();

        TestRunInfo runInfo;
        Totals totals;
        bool aborting;
    };

    struct BenchmarkInfo {
        std::string name;
    };
    struct BenchmarkStats {
        BenchmarkInfo info;
        std::size_t iterations;
        uint64_t elapsedTimeInNanoseconds;
    };

    struct IStreamingReporter {
        virtual ~IStreamingReporter() = default;

        // Implementing class must also provide the following static methods:
        // static std::string getDescription();
        // static std::set<Verbosity> getSupportedVerbosities()

        virtual ReporterPreferences getPreferences() const = 0;

        virtual void noMatchingTestCases(std::string const& spec) = 0;

        virtual void testRunStarting(TestRunInfo const& testRunInfo) = 0;
        virtual void testGroupStarting(GroupInfo const& groupInfo) = 0;

        virtual void testCaseStarting(TestCaseInfo const& testInfo) = 0;
        virtual void sectionStarting(SectionInfo const& sectionInfo) = 0;

        // *** experimental ***
        virtual void benchmarkStarting(BenchmarkInfo const&) {}

        virtual void assertionStarting(AssertionInfo const& assertionInfo) = 0;

        // The return value indicates if the messages buffer should be cleared:
        virtual bool assertionEnded(AssertionStats const& assertionStats) = 0;

        // *** experimental ***
        virtual void benchmarkEnded(BenchmarkStats const&) {}

        virtual void sectionEnded(SectionStats const& sectionStats) = 0;
        virtual void testCaseEnded(TestCaseStats const& testCaseStats) = 0;
        virtual void testGroupEnded(TestGroupStats const& testGroupStats) = 0;
        virtual void testRunEnded(TestRunStats const& testRunStats) = 0;

        virtual void skipTest(TestCaseInfo const& testInfo) = 0;

        // Default empty implementation provided
        virtual void fatalErrorEncountered(StringRef name);

        virtual bool isMulti() const;
    };
    using IStreamingReporterPtr = std::unique_ptr<IStreamingReporter>;

    struct IReporterFactory {
        virtual ~IReporterFactory();
        virtual IStreamingReporterPtr create(ReporterConfig const& config) const = 0;
        virtual std::string getDescription() const = 0;
    };
    using IReporterFactoryPtr = std::shared_ptr<IReporterFactory>;

    struct IReporterRegistry {
        using FactoryMap = std::map<std::string, IReporterFactoryPtr>;
        using Listeners = std::vector<IReporterFactoryPtr>;

        virtual ~IReporterRegistry();
        virtual IStreamingReporterPtr create(std::string const& name, IConfigPtr const& config) const = 0;
        virtual FactoryMap const& getFactories() const = 0;
        virtual Listeners const& getListeners() const = 0;
    };

    void addReporter(IStreamingReporterPtr& existingReporter, IStreamingReporterPtr&& additionalReporter);

} // end namespace Catch

  // end catch_interfaces_reporter.h
#include <algorithm>
#include <cstring>
#include <cfloat>
#include <cstdio>
#include <assert.h>
#include <memory>

namespace Catch {
    void prepareExpandedExpression(AssertionResult& result);

    // Returns double formatted as %.3f (format expected on output)
    std::string getFormattedDuration(double duration);

    template<typename DerivedT>
    struct StreamingReporterBase : IStreamingReporter {

        StreamingReporterBase(ReporterConfig const& _config)
            : m_config(_config.fullConfig()),
            stream(_config.stream()) {
            m_reporterPrefs.shouldRedirectStdOut = false;
            CATCH_ENFORCE(DerivedT::getSupportedVerbosities().count(m_config->verbosity()), "Verbosity level not supported by this reporter");
        }

        ReporterPreferences getPreferences() const override {
            return m_reporterPrefs;
        }

        static std::set<Verbosity> getSupportedVerbosities() {
            return{ Verbosity::Normal };
        }

        ~StreamingReporterBase() override = default;

        void noMatchingTestCases(std::string const&) override {}

        void testRunStarting(TestRunInfo const& _testRunInfo) override {
            currentTestRunInfo = _testRunInfo;
        }
        void testGroupStarting(GroupInfo const& _groupInfo) override {
            currentGroupInfo = _groupInfo;
        }

        void testCaseStarting(TestCaseInfo const& _testInfo) override {
            currentTestCaseInfo = _testInfo;
        }
        void sectionStarting(SectionInfo const& _sectionInfo) override {
            m_sectionStack.push_back(_sectionInfo);
        }

        void sectionEnded(SectionStats const& /* _sectionStats */) override {
            m_sectionStack.pop_back();
        }
        void testCaseEnded(TestCaseStats const& /* _testCaseStats */) override {
            currentTestCaseInfo.reset();
        }
        void testGroupEnded(TestGroupStats const& /* _testGroupStats */) override {
            currentGroupInfo.reset();
        }
        void testRunEnded(TestRunStats const& /* _testRunStats */) override {
            currentTestCaseInfo.reset();
            currentGroupInfo.reset();
            currentTestRunInfo.reset();
        }

        void skipTest(TestCaseInfo const&) override {
            // Don't do anything with this by default.
            // It can optionally be overridden in the derived class.
        }

        IConfigPtr m_config;
        std::ostream& stream;

        LazyStat<TestRunInfo> currentTestRunInfo;
        LazyStat<GroupInfo> currentGroupInfo;
        LazyStat<TestCaseInfo> currentTestCaseInfo;

        std::vector<SectionInfo> m_sectionStack;
        ReporterPreferences m_reporterPrefs;
    };

    template<typename DerivedT>
    struct CumulativeReporterBase : IStreamingReporter {
        template<typename T, typename ChildNodeT>
        struct Node {
            explicit Node(T const& _value) : value(_value) {}
            virtual ~Node() {}

            using ChildNodes = std::vector<std::shared_ptr<ChildNodeT>>;
            T value;
            ChildNodes children;
        };
        struct SectionNode {
            explicit SectionNode(SectionStats const& _stats) : stats(_stats) {}
            virtual ~SectionNode() = default;

            bool operator == (SectionNode const& other) const {
                return stats.sectionInfo.lineInfo == other.stats.sectionInfo.lineInfo;
            }
            bool operator == (std::shared_ptr<SectionNode> const& other) const {
                return operator==(*other);
            }

            SectionStats stats;
            using ChildSections = std::vector<std::shared_ptr<SectionNode>>;
            using Assertions = std::vector<AssertionStats>;
            ChildSections childSections;
            Assertions assertions;
            std::string stdOut;
            std::string stdErr;
        };

        struct BySectionInfo {
            BySectionInfo(SectionInfo const& other) : m_other(other) {}
            BySectionInfo(BySectionInfo const& other) : m_other(other.m_other) {}
            bool operator() (std::shared_ptr<SectionNode> const& node) const {
                return ((node->stats.sectionInfo.name == m_other.name) &&
                    (node->stats.sectionInfo.lineInfo == m_other.lineInfo));
            }
            void operator=(BySectionInfo const&) = delete;

        private:
            SectionInfo const& m_other;
        };

        using TestCaseNode = Node<TestCaseStats, SectionNode>;
        using TestGroupNode = Node<TestGroupStats, TestCaseNode>;
        using TestRunNode = Node<TestRunStats, TestGroupNode>;

        CumulativeReporterBase(ReporterConfig const& _config)
            : m_config(_config.fullConfig()),
            stream(_config.stream()) {
            m_reporterPrefs.shouldRedirectStdOut = false;
            CATCH_ENFORCE(DerivedT::getSupportedVerbosities().count(m_config->verbosity()), "Verbosity level not supported by this reporter");
        }
        ~CumulativeReporterBase() override = default;

        ReporterPreferences getPreferences() const override {
            return m_reporterPrefs;
        }

        static std::set<Verbosity> getSupportedVerbosities() {
            return{ Verbosity::Normal };
        }

        void testRunStarting(TestRunInfo const&) override {}
        void testGroupStarting(GroupInfo const&) override {}

        void testCaseStarting(TestCaseInfo const&) override {}

        void sectionStarting(SectionInfo const& sectionInfo) override {
            SectionStats incompleteStats(sectionInfo, Counts(), 0, false);
            std::shared_ptr<SectionNode> node;
            if (m_sectionStack.empty()) {
                if (!m_rootSection)
                    m_rootSection = std::make_shared<SectionNode>(incompleteStats);
                node = m_rootSection;
            } else {
                SectionNode& parentNode = *m_sectionStack.back();
                auto it =
                    std::find_if(parentNode.childSections.begin(),
                                 parentNode.childSections.end(),
                                 BySectionInfo(sectionInfo));
                if (it == parentNode.childSections.end()) {
                    node = std::make_shared<SectionNode>(incompleteStats);
                    parentNode.childSections.push_back(node);
                } else
                    node = *it;
            }
            m_sectionStack.push_back(node);
            m_deepestSection = std::move(node);
        }

        void assertionStarting(AssertionInfo const&) override {}

        bool assertionEnded(AssertionStats const& assertionStats) override {
            assert(!m_sectionStack.empty());
            // AssertionResult holds a pointer to a temporary DecomposedExpression,
            // which getExpandedExpression() calls to build the expression string.
            // Our section stack copy of the assertionResult will likely outlive the
            // temporary, so it must be expanded or discarded now to avoid calling
            // a destroyed object later.
            prepareExpandedExpression(const_cast<AssertionResult&>(assertionStats.assertionResult));
            SectionNode& sectionNode = *m_sectionStack.back();
            sectionNode.assertions.push_back(assertionStats);
            return true;
        }
        void sectionEnded(SectionStats const& sectionStats) override {
            assert(!m_sectionStack.empty());
            SectionNode& node = *m_sectionStack.back();
            node.stats = sectionStats;
            m_sectionStack.pop_back();
        }
        void testCaseEnded(TestCaseStats const& testCaseStats) override {
            auto node = std::make_shared<TestCaseNode>(testCaseStats);
            assert(m_sectionStack.size() == 0);
            node->children.push_back(m_rootSection);
            m_testCases.push_back(node);
            m_rootSection.reset();

            assert(m_deepestSection);
            m_deepestSection->stdOut = testCaseStats.stdOut;
            m_deepestSection->stdErr = testCaseStats.stdErr;
        }
        void testGroupEnded(TestGroupStats const& testGroupStats) override {
            auto node = std::make_shared<TestGroupNode>(testGroupStats);
            node->children.swap(m_testCases);
            m_testGroups.push_back(node);
        }
        void testRunEnded(TestRunStats const& testRunStats) override {
            auto node = std::make_shared<TestRunNode>(testRunStats);
            node->children.swap(m_testGroups);
            m_testRuns.push_back(node);
            testRunEndedCumulative();
        }
        virtual void testRunEndedCumulative() = 0;

        void skipTest(TestCaseInfo const&) override {}

        IConfigPtr m_config;
        std::ostream& stream;
        std::vector<AssertionStats> m_assertions;
        std::vector<std::vector<std::shared_ptr<SectionNode>>> m_sections;
        std::vector<std::shared_ptr<TestCaseNode>> m_testCases;
        std::vector<std::shared_ptr<TestGroupNode>> m_testGroups;

        std::vector<std::shared_ptr<TestRunNode>> m_testRuns;

        std::shared_ptr<SectionNode> m_rootSection;
        std::shared_ptr<SectionNode> m_deepestSection;
        std::vector<std::shared_ptr<SectionNode>> m_sectionStack;
        ReporterPreferences m_reporterPrefs;
    };

    template<char C>
    char const* getLineOfChars() {
        static char line[CATCH_CONFIG_CONSOLE_WIDTH] = { 0 };
        if (!*line) {
            std::memset(line, C, CATCH_CONFIG_CONSOLE_WIDTH - 1);
            line[CATCH_CONFIG_CONSOLE_WIDTH - 1] = 0;
        }
        return line;
    }

    struct TestEventListenerBase : StreamingReporterBase<TestEventListenerBase> {
        TestEventListenerBase(ReporterConfig const& _config);

        void assertionStarting(AssertionInfo const&) override;
        bool assertionEnded(AssertionStats const&) override;
    };

} // end namespace Catch

  // end catch_reporter_bases.hpp
  // start catch_console_colour.h

namespace Catch {

    struct Colour {
        enum Code {
            None = 0,

            White,
            Red,
            Green,
            Blue,
            Cyan,
            Yellow,
            Grey,

            Bright = 0x10,

            BrightRed = Bright | Red,
            BrightGreen = Bright | Green,
            LightGrey = Bright | Grey,
            BrightWhite = Bright | White,

            // By intention
            FileName = LightGrey,
            Warning = Yellow,
            ResultError = BrightRed,
            ResultSuccess = BrightGreen,
            ResultExpectedFailure = Warning,

            Error = BrightRed,
            Success = Green,

            OriginalExpression = Cyan,
            ReconstructedExpression = Yellow,

            SecondaryText = LightGrey,
            Headers = White
        };

        // Use constructed object for RAII guard
        Colour(Code _colourCode);
        Colour(Colour&& other) noexcept;
        Colour& operator=(Colour&& other) noexcept;
        ~Colour();

        // Use static method for one-shot changes
        static void use(Code _colourCode);

    private:
        bool m_moved = false;
    };

    std::ostream& operator << (std::ostream& os, Colour const&);

} // end namespace Catch

  // end catch_console_colour.h
  // start catch_reporter_registrars.hpp


namespace Catch {

    template<typename T>
    class ReporterRegistrar {

        class ReporterFactory : public IReporterFactory {

            virtual IStreamingReporterPtr create(ReporterConfig const& config) const override {
                return std::unique_ptr<T>(new T(config));
            }

            virtual std::string getDescription() const override {
                return T::getDescription();
            }
        };

    public:

        ReporterRegistrar(std::string const& name) {
            getMutableRegistryHub().registerReporter(name, std::make_shared<ReporterFactory>());
        }
    };

    template<typename T>
    class ListenerRegistrar {

        class ListenerFactory : public IReporterFactory {

            virtual IStreamingReporterPtr create(ReporterConfig const& config) const override {
                return std::unique_ptr<T>(new T(config));
            }
            virtual std::string getDescription() const override {
                return std::string();
            }
        };

    public:

        ListenerRegistrar() {
            getMutableRegistryHub().registerListener(std::make_shared<ListenerFactory>());
        }
    };
}

#if !defined(CATCH_CONFIG_DISABLE)

#define CATCH_REGISTER_REPORTER( name, reporterType ) \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS          \
    namespace{ Catch::ReporterRegistrar<reporterType> catch_internal_RegistrarFor##reporterType( name ); } \
    CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS

#define CATCH_REGISTER_LISTENER( listenerType ) \
     CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS   \
     namespace{ Catch::ListenerRegistrar<listenerType> catch_internal_RegistrarFor##listenerType; } \
     CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
#else // CATCH_CONFIG_DISABLE

#define CATCH_REGISTER_REPORTER(name, reporterType)
#define CATCH_REGISTER_LISTENER(listenerType)

#endif // CATCH_CONFIG_DISABLE

// end catch_reporter_registrars.hpp
// end catch_external_interfaces.h
#endif

#ifdef CATCH_IMPL
// start catch_impl.hpp

#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wweak-vtables"
#endif

// Keep these here for external reporters
// start catch_test_case_tracker.h

#include <string>
#include <vector>
#include <memory>

namespace Catch {
    namespace TestCaseTracking {

        struct NameAndLocation {
            std::string name;
            SourceLineInfo location;

            NameAndLocation(std::string const& _name, SourceLineInfo const& _location);
        };

        struct ITracker;

        using ITrackerPtr = std::shared_ptr<ITracker>;

        struct ITracker {
            virtual ~ITracker();

            // static queries
            virtual NameAndLocation const& nameAndLocation() const = 0;

            // dynamic queries
            virtual bool isComplete() const = 0; // Successfully completed or failed
            virtual bool isSuccessfullyCompleted() const = 0;
            virtual bool isOpen() const = 0; // Started but not complete
            virtual bool hasChildren() const = 0;

            virtual ITracker& parent() = 0;

            // actions
            virtual void close() = 0; // Successfully complete
            virtual void fail() = 0;
            virtual void markAsNeedingAnotherRun() = 0;

            virtual void addChild(ITrackerPtr const& child) = 0;
            virtual ITrackerPtr findChild(NameAndLocation const& nameAndLocation) = 0;
            virtual void openChild() = 0;

            // Debug/ checking
            virtual bool isSectionTracker() const = 0;
            virtual bool isIndexTracker() const = 0;
        };

        class TrackerContext {

            enum RunState {
                NotStarted,
                Executing,
                CompletedCycle
            };

            ITrackerPtr m_rootTracker;
            ITracker* m_currentTracker = nullptr;
            RunState m_runState = NotStarted;

        public:

            static TrackerContext& instance();

            ITracker& startRun();
            void endRun();

            void startCycle();
            void completeCycle();

            bool completedCycle() const;
            ITracker& currentTracker();
            void setCurrentTracker(ITracker* tracker);
        };

        class TrackerBase : public ITracker {
        protected:
            enum CycleState {
                NotStarted,
                Executing,
                ExecutingChildren,
                NeedsAnotherRun,
                CompletedSuccessfully,
                Failed
            };

            class TrackerHasName {
                NameAndLocation m_nameAndLocation;
            public:
                TrackerHasName(NameAndLocation const& nameAndLocation);
                bool operator ()(ITrackerPtr const& tracker) const;
            };

            using Children = std::vector<ITrackerPtr>;
            NameAndLocation m_nameAndLocation;
            TrackerContext& m_ctx;
            ITracker* m_parent;
            Children m_children;
            CycleState m_runState = NotStarted;

        public:
            TrackerBase(NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent);

            NameAndLocation const& nameAndLocation() const override;
            bool isComplete() const override;
            bool isSuccessfullyCompleted() const override;
            bool isOpen() const override;
            bool hasChildren() const override;

            void addChild(ITrackerPtr const& child) override;

            ITrackerPtr findChild(NameAndLocation const& nameAndLocation) override;
            ITracker& parent() override;

            void openChild() override;

            bool isSectionTracker() const override;
            bool isIndexTracker() const override;

            void open();

            void close() override;
            void fail() override;
            void markAsNeedingAnotherRun() override;

        private:
            void moveToParent();
            void moveToThis();
        };

        class SectionTracker : public TrackerBase {
            std::vector<std::string> m_filters;
        public:
            SectionTracker(NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent);

            bool isSectionTracker() const override;

            static SectionTracker& acquire(TrackerContext& ctx, NameAndLocation const& nameAndLocation);

            void tryOpen();

            void addInitialFilters(std::vector<std::string> const& filters);
            void addNextFilters(std::vector<std::string> const& filters);
        };

        class IndexTracker : public TrackerBase {
            int m_size;
            int m_index = -1;
        public:
            IndexTracker(NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent, int size);

            bool isIndexTracker() const override;
            void close() override;

            static IndexTracker& acquire(TrackerContext& ctx, NameAndLocation const& nameAndLocation, int size);

            int index() const;

            void moveNext();
        };

    } // namespace TestCaseTracking

    using TestCaseTracking::ITracker;
    using TestCaseTracking::TrackerContext;
    using TestCaseTracking::SectionTracker;
    using TestCaseTracking::IndexTracker;

} // namespace Catch

  // end catch_test_case_tracker.h

  // start catch_leak_detector.h

namespace Catch {

    struct LeakDetector {
        LeakDetector();
    };

}
// end catch_leak_detector.h
// Cpp files will be included in the single-header file here
// start catch_approx.cpp

#include <cmath>
#include <limits>

namespace {

    // Performs equivalent check of std::fabs(lhs - rhs) <= margin
    // But without the subtraction to allow for INFINITY in comparison
    bool marginComparison(double lhs, double rhs, double margin) {
        return (lhs + margin >= rhs) && (rhs + margin >= lhs);
    }

}

namespace Catch {
    namespace Detail {

        Approx::Approx(double value)
            : m_epsilon(std::numeric_limits<float>::epsilon() * 100),
            m_margin(0.0),
            m_scale(0.0),
            m_value(value) {
        }

        Approx Approx::custom() {
            return Approx(0);
        }

        std::string Approx::toString() const {
            std::ostringstream oss;
            oss << "Approx( " << ::Catch::Detail::stringify(m_value) << " )";
            return oss.str();
        }

        bool Approx::equalityComparisonImpl(const double other) const {
            // First try with fixed margin, then compute margin based on epsilon, scale and Approx's value
            // Thanks to Richard Harris for his help refining the scaled margin value
            return marginComparison(m_value, other, m_margin) || marginComparison(m_value, other, m_epsilon * (m_scale + std::fabs(m_value)));
        }

    } // end namespace Detail

    std::string StringMaker<Catch::Detail::Approx>::convert(Catch::Detail::Approx const& value) {
        return value.toString();
    }

} // end namespace Catch
  // end catch_approx.cpp
  // start catch_assertionhandler.cpp

  // start catch_context.h

#include <memory>

namespace Catch {

    struct IResultCapture;
    struct IRunner;
    struct IConfig;

    using IConfigPtr = std::shared_ptr<IConfig const>;

    struct IContext {
        virtual ~IContext();

        virtual IResultCapture* getResultCapture() = 0;
        virtual IRunner* getRunner() = 0;
        virtual IConfigPtr getConfig() const = 0;
    };

    struct IMutableContext : IContext {
        virtual ~IMutableContext();
        virtual void setResultCapture(IResultCapture* resultCapture) = 0;
        virtual void setRunner(IRunner* runner) = 0;
        virtual void setConfig(IConfigPtr const& config) = 0;
    };

    IContext& getCurrentContext();
    IMutableContext& getCurrentMutableContext();
    void cleanUpContext();
}

// end catch_context.h
#include <cassert>

namespace Catch {

    auto operator <<(std::ostream& os, ITransientExpression const& expr) -> std::ostream& {
        expr.streamReconstructedExpression(os);
        return os;
    }

    LazyExpression::LazyExpression(bool isNegated)
        : m_isNegated(isNegated) {
    }

    LazyExpression::LazyExpression(LazyExpression const& other) : m_isNegated(other.m_isNegated) {}

    LazyExpression::operator bool() const {
        return m_transientExpression != nullptr;
    }

    auto operator << (std::ostream& os, LazyExpression const& lazyExpr) -> std::ostream& {
        if (lazyExpr.m_isNegated)
            os << "!";

        if (lazyExpr) {
            if (lazyExpr.m_isNegated && lazyExpr.m_transientExpression->isBinaryExpression())
                os << "(" << *lazyExpr.m_transientExpression << ")";
            else
                os << *lazyExpr.m_transientExpression;
        } else {
            os << "{** error - unchecked empty expression requested **}";
        }
        return os;
    }

    AssertionHandler::AssertionHandler
    (StringRef macroName,
     SourceLineInfo const& lineInfo,
     StringRef capturedExpression,
     ResultDisposition::Flags resultDisposition)
        : m_assertionInfo{ macroName, lineInfo, capturedExpression, resultDisposition } {
        getCurrentContext().getResultCapture()->assertionStarting(m_assertionInfo);
    }
    AssertionHandler::~AssertionHandler() {
        if (m_inExceptionGuard) {
            handle(ResultWas::ThrewException, "Exception translation was disabled by CATCH_CONFIG_FAST_COMPILE");
            getCurrentContext().getResultCapture()->exceptionEarlyReported();
        }
    }

    void AssertionHandler::handle(ITransientExpression const& expr) {

        bool negated = isFalseTest(m_assertionInfo.resultDisposition);
        bool result = expr.getResult() != negated;

        handle(result ? ResultWas::Ok : ResultWas::ExpressionFailed, &expr, negated);
    }
    void AssertionHandler::handle(ResultWas::OfType resultType) {
        handle(resultType, nullptr, false);
    }
    void AssertionHandler::handle(ResultWas::OfType resultType, StringRef const& message) {
        AssertionResultData data(resultType, LazyExpression(false));
        data.message = message;
        handle(data, nullptr);
    }
    void AssertionHandler::handle(ResultWas::OfType resultType, ITransientExpression const* expr, bool negated) {
        AssertionResultData data(resultType, LazyExpression(negated));
        handle(data, expr);
    }
    void AssertionHandler::handle(AssertionResultData const& resultData, ITransientExpression const* expr) {

        getResultCapture().assertionRun();

        AssertionResult assertionResult{ m_assertionInfo, resultData };
        assertionResult.m_resultData.lazyExpression.m_transientExpression = expr;

        getResultCapture().assertionEnded(assertionResult);

        if (!assertionResult.isOk()) {
            m_shouldDebugBreak = getCurrentContext().getConfig()->shouldDebugBreak();
            m_shouldThrow =
                getCurrentContext().getRunner()->aborting() ||
                (m_assertionInfo.resultDisposition & ResultDisposition::Normal);
        }
    }

    auto AssertionHandler::allowThrows() const -> bool {
        return getCurrentContext().getConfig()->allowThrows();
    }

    auto AssertionHandler::shouldDebugBreak() const -> bool {
        return m_shouldDebugBreak;
    }
    void AssertionHandler::reactWithDebugBreak() const {
        if (m_shouldDebugBreak) {
            ///////////////////////////////////////////////////////////////////
            // To inspect the state during test, you need to go one level up the callstack
            // To go back to the test and change execution, jump over the reactWithoutDebugBreak() call
            ///////////////////////////////////////////////////////////////////
            CATCH_BREAK_INTO_DEBUGGER();
        }
        reactWithoutDebugBreak();
    }
    void AssertionHandler::reactWithoutDebugBreak() const {
        if (m_shouldThrow)
            throw Catch::TestFailureException();
    }

    void AssertionHandler::useActiveException() {
        handle(ResultWas::ThrewException, Catch::translateActiveException());
    }

    void AssertionHandler::setExceptionGuard() {
        assert(m_inExceptionGuard == false);
        m_inExceptionGuard = true;
    }
    void AssertionHandler::unsetExceptionGuard() {
        assert(m_inExceptionGuard == true);
        m_inExceptionGuard = false;
    }

    // This is the overload that takes a string and infers the Equals matcher from it
    // The more general overload, that takes any string matcher, is in catch_capture_matchers.cpp
    void handleExceptionMatchExpr(AssertionHandler& handler, std::string const& str, StringRef matcherString) {
        handleExceptionMatchExpr(handler, Matchers::Equals(str), matcherString);
    }

} // namespace Catch
  // end catch_assertionhandler.cpp
  // start catch_assertionresult.cpp

namespace Catch {
    AssertionResultData::AssertionResultData(ResultWas::OfType _resultType, LazyExpression const & _lazyExpression) :
        lazyExpression(_lazyExpression),
        resultType(_resultType) {
    }

    std::string AssertionResultData::reconstructExpression() const {

        if (reconstructedExpression.empty()) {
            if (lazyExpression) {
                // !TBD Use stringstream for now, but rework above to pass stream in
                std::ostringstream oss;
                oss << lazyExpression;
                reconstructedExpression = oss.str();
            }
        }
        return reconstructedExpression;
    }

    AssertionResult::AssertionResult(AssertionInfo const& info, AssertionResultData const& data)
        : m_info(info),
        m_resultData(data) {
    }

    // Result was a success
    bool AssertionResult::succeeded() const {
        return Catch::isOk(m_resultData.resultType);
    }

    // Result was a success, or failure is suppressed
    bool AssertionResult::isOk() const {
        return Catch::isOk(m_resultData.resultType) || shouldSuppressFailure(m_info.resultDisposition);
    }

    ResultWas::OfType AssertionResult::getResultType() const {
        return m_resultData.resultType;
    }

    bool AssertionResult::hasExpression() const {
        return m_info.capturedExpression[0] != 0;
    }

    bool AssertionResult::hasMessage() const {
        return !m_resultData.message.empty();
    }

    std::string AssertionResult::getExpression() const {
        if (isFalseTest(m_info.resultDisposition))
            return "!(" + std::string(m_info.capturedExpression) + ")";
        else
            return m_info.capturedExpression;
    }

    std::string AssertionResult::getExpressionInMacro() const {
        std::string expr;
        if (m_info.macroName[0] == 0)
            expr = m_info.capturedExpression;
        else {
            expr.reserve(m_info.macroName.size() + m_info.capturedExpression.size() + 4);
            expr += m_info.macroName;
            expr += "( ";
            expr += m_info.capturedExpression;
            expr += " )";
        }
        return expr;
    }

    bool AssertionResult::hasExpandedExpression() const {
        return hasExpression() && getExpandedExpression() != getExpression();
    }

    std::string AssertionResult::getExpandedExpression() const {
        std::string expr = m_resultData.reconstructExpression();
        return expr.empty()
            ? getExpression()
            : expr;
    }

    std::string AssertionResult::getMessage() const {
        return m_resultData.message;
    }
    SourceLineInfo AssertionResult::getSourceInfo() const {
        return m_info.lineInfo;
    }

    std::string AssertionResult::getTestMacroName() const {
        return m_info.macroName;
    }

} // end namespace Catch
  // end catch_assertionresult.cpp
  // start catch_benchmark.cpp

namespace Catch {

    auto BenchmarkLooper::getResolution() -> uint64_t {
        return getEstimatedClockResolution() * getCurrentContext().getConfig()->benchmarkResolutionMultiple();
    }

    void BenchmarkLooper::reportStart() {
        getResultCapture().benchmarkStarting({ m_name });
    }
    auto BenchmarkLooper::needsMoreIterations() -> bool {
        auto elapsed = m_timer.getElapsedNanoseconds();

        // Exponentially increasing iterations until we're confident in our timer resolution
        if (elapsed < m_resolution) {
            m_iterationsToRun *= 10;
            return true;
        }

        getResultCapture().benchmarkEnded({ { m_name }, m_count, elapsed });
        return false;
    }

} // end namespace Catch
  // end catch_benchmark.cpp
  // start catch_capture_matchers.cpp

namespace Catch {

    using StringMatcher = Matchers::Impl::MatcherBase<std::string>;

    // This is the general overload that takes a any string matcher
    // There is another overload, in catch_assertinhandler.h/.cpp, that only takes a string and infers
    // the Equals matcher (so the header does not mention matchers)
    void handleExceptionMatchExpr(AssertionHandler& handler, StringMatcher const& matcher, StringRef matcherString) {
        std::string exceptionMessage = Catch::translateActiveException();
        MatchExpr<std::string, StringMatcher const&> expr(exceptionMessage, matcher, matcherString);
        handler.handle(expr);
    }

} // namespace Catch
  // end catch_capture_matchers.cpp
  // start catch_commandline.cpp

  // start catch_commandline.h

  // start catch_clara.h

  // Use Catch's value for console width (store Clara's off to the side, if present)
#ifdef CLARA_CONFIG_CONSOLE_WIDTH
#define CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
#undef CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
#endif
#define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH CATCH_CONFIG_CONSOLE_WIDTH-1

#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wweak-vtables"
#pragma clang diagnostic ignored "-Wexit-time-destructors"
#pragma clang diagnostic ignored "-Wshadow"
#endif

  // start clara.hpp
  // v1.0-develop.2
  // See https://github.com/philsquared/Clara


#ifndef CATCH_CLARA_CONFIG_CONSOLE_WIDTH
#define CATCH_CLARA_CONFIG_CONSOLE_WIDTH 80
#endif

#ifndef CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
#define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH CATCH_CLARA_CONFIG_CONSOLE_WIDTH
#endif

  // ----------- #included from clara_textflow.hpp -----------

  // TextFlowCpp
  //
  // A single-header library for wrapping and laying out basic text, by Phil Nash
  //
  // This work is licensed under the BSD 2-Clause license.
  // See the accompanying LICENSE file, or the one at https://opensource.org/licenses/BSD-2-Clause
  //
  // This project is hosted at https://github.com/philsquared/textflowcpp


#include <cassert>
#include <ostream>
#include <sstream>
#include <vector>

#ifndef CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
#define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH 80
#endif

namespace Catch {
    namespace clara {
        namespace TextFlow {

            inline auto isWhitespace(char c) -> bool {
                static std::string chars = " \t\n\r";
                return chars.find(c) != std::string::npos;
            }
            inline auto isBreakableBefore(char c) -> bool {
                static std::string chars = "[({<|";
                return chars.find(c) != std::string::npos;
            }
            inline auto isBreakableAfter(char c) -> bool {
                static std::string chars = "])}>.,:;*+-=&/\\";
                return chars.find(c) != std::string::npos;
            }

            class Columns;

            class Column {
                std::vector<std::string> m_strings;
                size_t m_width = CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH;
                size_t m_indent = 0;
                size_t m_initialIndent = std::string::npos;

            public:
                class iterator {
                    friend Column;

                    Column const& m_column;
                    size_t m_stringIndex = 0;
                    size_t m_pos = 0;

                    size_t m_len = 0;
                    size_t m_end = 0;
                    bool m_suffix = false;

                    iterator(Column const& column, size_t stringIndex)
                        : m_column(column),
                        m_stringIndex(stringIndex) {
                    }

                    auto line() const -> std::string const& { return m_column.m_strings[m_stringIndex]; }

                    auto isBoundary(size_t at) const -> bool {
                        assert(at > 0);
                        assert(at <= line().size());

                        return at == line().size() ||
                            (isWhitespace(line()[at]) && !isWhitespace(line()[at - 1])) ||
                            isBreakableBefore(line()[at]) ||
                            isBreakableAfter(line()[at - 1]);
                    }

                    void calcLength() {
                        assert(m_stringIndex < m_column.m_strings.size());

                        m_suffix = false;
                        auto width = m_column.m_width - indent();
                        m_end = m_pos;
                        while (m_end < line().size() && line()[m_end] != '\n')
                            ++m_end;

                        if (m_end < m_pos + width) {
                            m_len = m_end - m_pos;
                        } else {
                            size_t len = width;
                            while (len > 0 && !isBoundary(m_pos + len))
                                --len;
                            while (len > 0 && isWhitespace(line()[m_pos + len - 1]))
                                --len;

                            if (len > 0) {
                                m_len = len;
                            } else {
                                m_suffix = true;
                                m_len = width - 1;
                            }
                        }
                    }

                    auto indent() const -> size_t {
                        auto initial = m_pos == 0 && m_stringIndex == 0 ? m_column.m_initialIndent : std::string::npos;
                        return initial == std::string::npos ? m_column.m_indent : initial;
                    }

                    auto addIndentAndSuffix(std::string const &plain) const -> std::string {
                        return std::string(indent(), ' ') + (m_suffix ? plain + "-" : plain);
                    }

                public:
                    explicit iterator(Column const& column) : m_column(column) {
                        assert(m_column.m_width > m_column.m_indent);
                        assert(m_column.m_initialIndent == std::string::npos || m_column.m_width > m_column.m_initialIndent);
                        calcLength();
                        if (m_len == 0)
                            m_stringIndex++; // Empty string
                    }

                    auto operator *() const -> std::string {
                        assert(m_stringIndex < m_column.m_strings.size());
                        assert(m_pos <= m_end);
                        if (m_pos + m_column.m_width < m_end)
                            return addIndentAndSuffix(line().substr(m_pos, m_len));
                        else
                            return addIndentAndSuffix(line().substr(m_pos, m_end - m_pos));
                    }

                    auto operator ++() -> iterator& {
                        m_pos += m_len;
                        if (m_pos < line().size() && line()[m_pos] == '\n')
                            m_pos += 1;
                        else
                            while (m_pos < line().size() && isWhitespace(line()[m_pos]))
                                ++m_pos;

                        if (m_pos == line().size()) {
                            m_pos = 0;
                            ++m_stringIndex;
                        }
                        if (m_stringIndex < m_column.m_strings.size())
                            calcLength();
                        return *this;
                    }
                    auto operator ++(int) -> iterator {
                        iterator prev(*this);
                        operator++();
                        return prev;
                    }

                    auto operator ==(iterator const& other) const -> bool {
                        return
                            m_pos == other.m_pos &&
                            m_stringIndex == other.m_stringIndex &&
                            &m_column == &other.m_column;
                    }
                    auto operator !=(iterator const& other) const -> bool {
                        return !operator==(other);
                    }
                };
                using const_iterator = iterator;

                explicit Column(std::string const& text) { m_strings.push_back(text); }

                auto width(size_t newWidth) -> Column& {
                    assert(newWidth > 0);
                    m_width = newWidth;
                    return *this;
                }
                auto indent(size_t newIndent) -> Column& {
                    m_indent = newIndent;
                    return *this;
                }
                auto initialIndent(size_t newIndent) -> Column& {
                    m_initialIndent = newIndent;
                    return *this;
                }

                auto width() const -> size_t { return m_width; }
                auto begin() const -> iterator { return iterator(*this); }
                auto end() const -> iterator { return{ *this, m_strings.size() }; }

                inline friend std::ostream& operator << (std::ostream& os, Column const& col) {
                    bool first = true;
                    for (auto line : col) {
                        if (first)
                            first = false;
                        else
                            os << "\n";
                        os << line;
                    }
                    return os;
                }

                auto operator + (Column const& other)->Columns;

                auto toString() const -> std::string {
                    std::ostringstream oss;
                    oss << *this;
                    return oss.str();
                }
            };

            class Spacer : public Column {

            public:
                explicit Spacer(size_t spaceWidth) : Column("") {
                    width(spaceWidth);
                }
            };

            class Columns {
                std::vector<Column> m_columns;

            public:

                class iterator {
                    friend Columns;
                    struct EndTag {};

                    std::vector<Column> const& m_columns;
                    std::vector<Column::iterator> m_iterators;
                    size_t m_activeIterators;

                    iterator(Columns const& columns, EndTag)
                        : m_columns(columns.m_columns),
                        m_activeIterators(0) {
                        m_iterators.reserve(m_columns.size());

                        for (auto const& col : m_columns)
                            m_iterators.push_back(col.end());
                    }

                public:
                    explicit iterator(Columns const& columns)
                        : m_columns(columns.m_columns),
                        m_activeIterators(m_columns.size()) {
                        m_iterators.reserve(m_columns.size());

                        for (auto const& col : m_columns)
                            m_iterators.push_back(col.begin());
                    }

                    auto operator ==(iterator const& other) const -> bool {
                        return m_iterators == other.m_iterators;
                    }
                    auto operator !=(iterator const& other) const -> bool {
                        return m_iterators != other.m_iterators;
                    }
                    auto operator *() const -> std::string {
                        std::string row, padding;

                        for (size_t i = 0; i < m_columns.size(); ++i) {
                            auto width = m_columns[i].width();
                            if (m_iterators[i] != m_columns[i].end()) {
                                std::string col = *m_iterators[i];
                                row += padding + col;
                                if (col.size() < width)
                                    padding = std::string(width - col.size(), ' ');
                                else
                                    padding = "";
                            } else {
                                padding += std::string(width, ' ');
                            }
                        }
                        return row;
                    }
                    auto operator ++() -> iterator& {
                        for (size_t i = 0; i < m_columns.size(); ++i) {
                            if (m_iterators[i] != m_columns[i].end())
                                ++m_iterators[i];
                        }
                        return *this;
                    }
                    auto operator ++(int) -> iterator {
                        iterator prev(*this);
                        operator++();
                        return prev;
                    }
                };
                using const_iterator = iterator;

                auto begin() const -> iterator { return iterator(*this); }
                auto end() const -> iterator { return{ *this, iterator::EndTag() }; }

                auto operator += (Column const& col) -> Columns& {
                    m_columns.push_back(col);
                    return *this;
                }
                auto operator + (Column const& col) -> Columns {
                    Columns combined = *this;
                    combined += col;
                    return combined;
                }

                inline friend std::ostream& operator << (std::ostream& os, Columns const& cols) {

                    bool first = true;
                    for (auto line : cols) {
                        if (first)
                            first = false;
                        else
                            os << "\n";
                        os << line;
                    }
                    return os;
                }

                auto toString() const -> std::string {
                    std::ostringstream oss;
                    oss << *this;
                    return oss.str();
                }
            };

            inline auto Column::operator + (Column const& other) -> Columns {
                Columns cols;
                cols += *this;
                cols += other;
                return cols;
            }
        }
    }
} // namespace Catch::clara::TextFlow

  // ----------- end of #include from clara_textflow.hpp -----------
  // ........... back in clara.hpp

#include <memory>
#include <set>
#include <algorithm>

#if !defined(CATCH_PLATFORM_WINDOWS) && ( defined(WIN32) || defined(__WIN32__) || defined(_WIN32) || defined(_MSC_VER) )
#define CATCH_PLATFORM_WINDOWS
#endif

namespace Catch {
    namespace clara {
        namespace detail {

            // Traits for extracting arg and return type of lambdas (for single argument lambdas)
            template<typename L>
            struct UnaryLambdaTraits : UnaryLambdaTraits<decltype(&L::operator())> {};

            template<typename ClassT, typename ReturnT, typename... Args>
            struct UnaryLambdaTraits<ReturnT(ClassT::*)(Args...) const> {
                static const bool isValid = false;
            };

            template<typename ClassT, typename ReturnT, typename ArgT>
            struct UnaryLambdaTraits<ReturnT(ClassT::*)(ArgT) const> {
                static const bool isValid = true;
                using ArgType = typename std::remove_const<typename std::remove_reference<ArgT>::type>::type;;
                using ReturnType = ReturnT;
            };

            class TokenStream;

            // Transport for raw args (copied from main args, or supplied via init list for testing)
            class Args {
                friend TokenStream;
                std::string m_exeName;
                std::vector<std::string> m_args;

            public:
                Args(int argc, char *argv[]) {
                    m_exeName = argv[0];
                    for (int i = 1; i < argc; ++i)
                        m_args.push_back(argv[i]);
                }

                Args(std::initializer_list<std::string> args)
                    : m_exeName(*args.begin()),
                    m_args(args.begin() + 1, args.end()) {
                }

                auto exeName() const -> std::string {
                    return m_exeName;
                }
            };

            // Wraps a token coming from a token stream. These may not directly correspond to strings as a single string
            // may encode an option + its argument if the : or = form is used
            enum class TokenType {
                Option, Argument
            };
            struct Token {
                TokenType type;
                std::string token;
            };

            inline auto isOptPrefix(char c) -> bool {
                return c == '-'
#ifdef CATCH_PLATFORM_WINDOWS
                    || c == '/'
#endif
                    ;
            }

            // Abstracts iterators into args as a stream of tokens, with option arguments uniformly handled
            class TokenStream {
                using Iterator = std::vector<std::string>::const_iterator;
                Iterator it;
                Iterator itEnd;
                std::vector<Token> m_tokenBuffer;

                void loadBuffer() {
                    m_tokenBuffer.resize(0);

                    // Skip any empty strings
                    while (it != itEnd && it->empty())
                        ++it;

                    if (it != itEnd) {
                        auto const &next = *it;
                        if (isOptPrefix(next[0])) {
                            auto delimiterPos = next.find_first_of(" :=");
                            if (delimiterPos != std::string::npos) {
                                m_tokenBuffer.push_back({ TokenType::Option, next.substr(0, delimiterPos) });
                                m_tokenBuffer.push_back({ TokenType::Argument, next.substr(delimiterPos + 1) });
                            } else {
                                if (next[1] != '-' && next.size() > 2) {
                                    std::string opt = "- ";
                                    for (size_t i = 1; i < next.size(); ++i) {
                                        opt[1] = next[i];
                                        m_tokenBuffer.push_back({ TokenType::Option, opt });
                                    }
                                } else {
                                    m_tokenBuffer.push_back({ TokenType::Option, next });
                                }
                            }
                        } else {
                            m_tokenBuffer.push_back({ TokenType::Argument, next });
                        }
                    }
                }

            public:
                explicit TokenStream(Args const &args) : TokenStream(args.m_args.begin(), args.m_args.end()) {}

                TokenStream(Iterator it, Iterator itEnd) : it(it), itEnd(itEnd) {
                    loadBuffer();
                }

                explicit operator bool() const {
                    return !m_tokenBuffer.empty() || it != itEnd;
                }

                auto count() const -> size_t { return m_tokenBuffer.size() + (itEnd - it); }

                auto operator*() const -> Token {
                    assert(!m_tokenBuffer.empty());
                    return m_tokenBuffer.front();
                }

                auto operator->() const -> Token const * {
                    assert(!m_tokenBuffer.empty());
                    return &m_tokenBuffer.front();
                }

                auto operator++() -> TokenStream & {
                    if (m_tokenBuffer.size() >= 2) {
                        m_tokenBuffer.erase(m_tokenBuffer.begin());
                    } else {
                        if (it != itEnd)
                            ++it;
                        loadBuffer();
                    }
                    return *this;
                }
            };

            class ResultBase {
            public:
                enum Type {
                    Ok, LogicError, RuntimeError
                };

            protected:
                ResultBase(Type type) : m_type(type) {}
                virtual ~ResultBase() = default;

                virtual void enforceOk() const = 0;

                Type m_type;
            };

            template<typename T>
            class ResultValueBase : public ResultBase {
            public:
                auto value() const -> T const & {
                    enforceOk();
                    return m_value;
                }

            protected:
                ResultValueBase(Type type) : ResultBase(type) {}

                ResultValueBase(ResultValueBase const &other) : ResultBase(other) {
                    if (m_type == ResultBase::Ok)
                        new(&m_value) T(other.m_value);
                }

                ResultValueBase(Type, T const &value) : ResultBase(Ok) {
                    new(&m_value) T(value);
                }

                auto operator=(ResultValueBase const &other) -> ResultValueBase & {
                    if (m_type == ResultBase::Ok)
                        m_value.~T();
                    ResultBase::operator=(other);
                    if (m_type == ResultBase::Ok)
                        new(&m_value) T(other.m_value);
                    return *this;
                }

                ~ResultValueBase() {
                    if (m_type == Ok)
                        m_value.~T();
                }

                union {
                    T m_value;
                };
            };

            template<>
            class ResultValueBase<void> : public ResultBase {
            protected:
                using ResultBase::ResultBase;
            };

            template<typename T = void>
            class BasicResult : public ResultValueBase<T> {
            public:
                template<typename U>
                explicit BasicResult(BasicResult<U> const &other)
                    : ResultValueBase<T>(other.type()),
                    m_errorMessage(other.errorMessage()) {
                    assert(type() != ResultBase::Ok);
                }

                template<typename U>
                static auto ok(U const &value) -> BasicResult { return{ ResultBase::Ok, value }; }
                static auto ok() -> BasicResult { return{ ResultBase::Ok }; }
                static auto logicError(std::string const &message) -> BasicResult { return{ ResultBase::LogicError, message }; }
                static auto runtimeError(std::string const &message) -> BasicResult { return{ ResultBase::RuntimeError, message }; }

                explicit operator bool() const { return m_type == ResultBase::Ok; }
                auto type() const -> ResultBase::Type { return m_type; }
                auto errorMessage() const -> std::string { return m_errorMessage; }

            protected:
                virtual void enforceOk() const {
                    // !TBD: If no exceptions, std::terminate here or something
                    switch (m_type) {
                        case ResultBase::LogicError:
                            throw std::logic_error(m_errorMessage);
                        case ResultBase::RuntimeError:
                            throw std::runtime_error(m_errorMessage);
                        case ResultBase::Ok:
                            break;
                    }
                }

                std::string m_errorMessage; // Only populated if resultType is an error

                BasicResult(ResultBase::Type type, std::string const &message)
                    : ResultValueBase<T>(type),
                    m_errorMessage(message) {
                    assert(m_type != ResultBase::Ok);
                }

                using ResultValueBase<T>::ResultValueBase;
                using ResultBase::m_type;
            };

            enum class ParseResultType {
                Matched, NoMatch, ShortCircuitAll, ShortCircuitSame
            };

            class ParseState {
            public:

                ParseState(ParseResultType type, TokenStream const &remainingTokens)
                    : m_type(type),
                    m_remainingTokens(remainingTokens) {
                }

                auto type() const -> ParseResultType { return m_type; }
                auto remainingTokens() const -> TokenStream { return m_remainingTokens; }

            private:
                ParseResultType m_type;
                TokenStream m_remainingTokens;
            };

            using Result = BasicResult<void>;
            using ParserResult = BasicResult<ParseResultType>;
            using InternalParseResult = BasicResult<ParseState>;

            struct HelpColumns {
                std::string left;
                std::string right;
            };

            template<typename T>
            inline auto convertInto(std::string const &source, T& target) -> ParserResult {
                std::stringstream ss;
                ss << source;
                ss >> target;
                if (ss.fail())
                    return ParserResult::runtimeError("Unable to convert '" + source + "' to destination type");
                else
                    return ParserResult::ok(ParseResultType::Matched);
            }
            inline auto convertInto(std::string const &source, std::string& target) -> ParserResult {
                target = source;
                return ParserResult::ok(ParseResultType::Matched);
            }
            inline auto convertInto(std::string const &source, bool &target) -> ParserResult {
                std::string srcLC = source;
                std::transform(srcLC.begin(), srcLC.end(), srcLC.begin(), [](char c) { return static_cast<char>(::tolower(c)); });
                if (srcLC == "y" || srcLC == "1" || srcLC == "true" || srcLC == "yes" || srcLC == "on")
                    target = true;
                else if (srcLC == "n" || srcLC == "0" || srcLC == "false" || srcLC == "no" || srcLC == "off")
                    target = false;
                else
                    return ParserResult::runtimeError("Expected a boolean value but did not recognise: '" + source + "'");
                return ParserResult::ok(ParseResultType::Matched);
            }

            struct BoundRefBase {
                BoundRefBase() = default;
                BoundRefBase(BoundRefBase const &) = delete;
                BoundRefBase(BoundRefBase &&) = delete;
                BoundRefBase &operator=(BoundRefBase const &) = delete;
                BoundRefBase &operator=(BoundRefBase &&) = delete;

                virtual ~BoundRefBase() = default;

                virtual auto isFlag() const -> bool = 0;
                virtual auto isContainer() const -> bool { return false; }
                virtual auto setValue(std::string const &arg)->ParserResult = 0;
                virtual auto setFlag(bool flag)->ParserResult = 0;
            };

            struct BoundValueRefBase : BoundRefBase {
                auto isFlag() const -> bool override { return false; }

                auto setFlag(bool) -> ParserResult override {
                    return ParserResult::logicError("Flags can only be set on boolean fields");
                }
            };

            struct BoundFlagRefBase : BoundRefBase {
                auto isFlag() const -> bool override { return true; }

                auto setValue(std::string const &arg) -> ParserResult override {
                    bool flag;
                    auto result = convertInto(arg, flag);
                    if (result)
                        setFlag(flag);
                    return result;
                }
            };

            template<typename T>
            struct BoundRef : BoundValueRefBase {
                T &m_ref;

                explicit BoundRef(T &ref) : m_ref(ref) {}

                auto setValue(std::string const &arg) -> ParserResult override {
                    return convertInto(arg, m_ref);
                }
            };

            template<typename T>
            struct BoundRef<std::vector<T>> : BoundValueRefBase {
                std::vector<T> &m_ref;

                explicit BoundRef(std::vector<T> &ref) : m_ref(ref) {}

                auto isContainer() const -> bool override { return true; }

                auto setValue(std::string const &arg) -> ParserResult override {
                    T temp;
                    auto result = convertInto(arg, temp);
                    if (result)
                        m_ref.push_back(temp);
                    return result;
                }
            };

            struct BoundFlagRef : BoundFlagRefBase {
                bool &m_ref;

                explicit BoundFlagRef(bool &ref) : m_ref(ref) {}

                auto setFlag(bool flag) -> ParserResult override {
                    m_ref = flag;
                    return ParserResult::ok(ParseResultType::Matched);
                }
            };

            template<typename ReturnType>
            struct LambdaInvoker {
                static_assert(std::is_same<ReturnType, ParserResult>::value, "Lambda must return void or clara::ParserResult");

                template<typename L, typename ArgType>
                static auto invoke(L const &lambda, ArgType const &arg) -> ParserResult {
                    return lambda(arg);
                }
            };

            template<>
            struct LambdaInvoker<void> {
                template<typename L, typename ArgType>
                static auto invoke(L const &lambda, ArgType const &arg) -> ParserResult {
                    lambda(arg);
                    return ParserResult::ok(ParseResultType::Matched);
                }
            };

            template<typename ArgType, typename L>
            inline auto invokeLambda(L const &lambda, std::string const &arg) -> ParserResult {
                ArgType temp;
                auto result = convertInto(arg, temp);
                return !result
                    ? result
                    : LambdaInvoker<typename UnaryLambdaTraits<L>::ReturnType>::invoke(lambda, temp);
            };

            template<typename L>
            struct BoundLambda : BoundValueRefBase {
                L m_lambda;

                static_assert(UnaryLambdaTraits<L>::isValid, "Supplied lambda must take exactly one argument");
                explicit BoundLambda(L const &lambda) : m_lambda(lambda) {}

                auto setValue(std::string const &arg) -> ParserResult override {
                    return invokeLambda<typename UnaryLambdaTraits<L>::ArgType>(m_lambda, arg);
                }
            };

            template<typename L>
            struct BoundFlagLambda : BoundFlagRefBase {
                L m_lambda;

                static_assert(UnaryLambdaTraits<L>::isValid, "Supplied lambda must take exactly one argument");
                static_assert(std::is_same<typename UnaryLambdaTraits<L>::ArgType, bool>::value, "flags must be boolean");

                explicit BoundFlagLambda(L const &lambda) : m_lambda(lambda) {}

                auto setFlag(bool flag) -> ParserResult override {
                    return LambdaInvoker<typename UnaryLambdaTraits<L>::ReturnType>::invoke(m_lambda, flag);
                }
            };

            enum class Optionality { Optional, Required };

            struct Parser;

            class ParserBase {
            public:
                virtual ~ParserBase() = default;
                virtual auto validate() const -> Result { return Result::ok(); }
                virtual auto parse(std::string const& exeName, TokenStream const &tokens) const->InternalParseResult = 0;
                virtual auto cardinality() const -> size_t { return 1; }

                auto parse(Args const &args) const -> InternalParseResult {
                    return parse(args.exeName(), TokenStream(args));
                }
            };

            template<typename DerivedT>
            class ComposableParserImpl : public ParserBase {
            public:
                template<typename T>
                auto operator|(T const &other) const->Parser;
            };

            // Common code and state for Args and Opts
            template<typename DerivedT>
            class ParserRefImpl : public ComposableParserImpl<DerivedT> {
            protected:
                Optionality m_optionality = Optionality::Optional;
                std::shared_ptr<BoundRefBase> m_ref;
                std::string m_hint;
                std::string m_description;

                explicit ParserRefImpl(std::shared_ptr<BoundRefBase> const &ref) : m_ref(ref) {}

            public:
                template<typename T>
                ParserRefImpl(T &ref, std::string const &hint)
                    : m_ref(std::make_shared<BoundRef<T>>(ref)),
                    m_hint(hint) {
                }

                template<typename LambdaT>
                ParserRefImpl(LambdaT const &ref, std::string const &hint)
                    : m_ref(std::make_shared<BoundLambda<LambdaT>>(ref)),
                    m_hint(hint) {
                }

                auto operator()(std::string const &description) -> DerivedT & {
                    m_description = description;
                    return static_cast<DerivedT &>(*this);
                }

                auto optional() -> DerivedT & {
                    m_optionality = Optionality::Optional;
                    return static_cast<DerivedT &>(*this);
                };

                auto required() -> DerivedT & {
                    m_optionality = Optionality::Required;
                    return static_cast<DerivedT &>(*this);
                };

                auto isOptional() const -> bool {
                    return m_optionality == Optionality::Optional;
                }

                auto cardinality() const -> size_t override {
                    if (m_ref->isContainer())
                        return 0;
                    else
                        return 1;
                }

                auto hint() const -> std::string { return m_hint; }
            };

            class ExeName : public ComposableParserImpl<ExeName> {
                std::shared_ptr<std::string> m_name;
                std::shared_ptr<BoundRefBase> m_ref;

                template<typename LambdaT>
                static auto makeRef(LambdaT const &lambda) -> std::shared_ptr<BoundRefBase> {
                    return std::make_shared<BoundLambda<LambdaT>>(lambda);
                }

            public:
                ExeName() : m_name(std::make_shared<std::string>("<executable>")) {}

                explicit ExeName(std::string &ref) : ExeName() {
                    m_ref = std::make_shared<BoundRef<std::string>>(ref);
                }

                template<typename LambdaT>
                explicit ExeName(LambdaT const& lambda) : ExeName() {
                    m_ref = std::make_shared<BoundLambda<LambdaT>>(lambda);
                }

                // The exe name is not parsed out of the normal tokens, but is handled specially
                auto parse(std::string const&, TokenStream const &tokens) const -> InternalParseResult override {
                    return InternalParseResult::ok(ParseState(ParseResultType::NoMatch, tokens));
                }

                auto name() const -> std::string { return *m_name; }
                auto set(std::string const& newName) -> ParserResult {

                    auto lastSlash = newName.find_last_of("\\/");
                    auto filename = (lastSlash == std::string::npos)
                        ? newName
                        : newName.substr(lastSlash + 1);

                    *m_name = filename;
                    if (m_ref)
                        return m_ref->setValue(filename);
                    else
                        return ParserResult::ok(ParseResultType::Matched);
                }
            };

            class Arg : public ParserRefImpl<Arg> {
            public:
                using ParserRefImpl::ParserRefImpl;

                auto parse(std::string const &, TokenStream const &tokens) const -> InternalParseResult override {
                    auto validationResult = validate();
                    if (!validationResult)
                        return InternalParseResult(validationResult);

                    auto remainingTokens = tokens;
                    auto const &token = *remainingTokens;
                    if (token.type != TokenType::Argument)
                        return InternalParseResult::ok(ParseState(ParseResultType::NoMatch, remainingTokens));

                    auto result = m_ref->setValue(remainingTokens->token);
                    if (!result)
                        return InternalParseResult(result);
                    else
                        return InternalParseResult::ok(ParseState(ParseResultType::Matched, ++remainingTokens));
                }
            };

            inline auto normaliseOpt(std::string const &optName) -> std::string {
#ifdef CATCH_PLATFORM_WINDOWS
                if (optName[0] == '/')
                    return "-" + optName.substr(1);
                else
#endif
                    return optName;
            }

            class Opt : public ParserRefImpl<Opt> {
            protected:
                std::vector<std::string> m_optNames;

            public:
                template<typename LambdaT>
                explicit Opt(LambdaT const &ref) : ParserRefImpl(std::make_shared<BoundFlagLambda<LambdaT>>(ref)) {}

                explicit Opt(bool &ref) : ParserRefImpl(std::make_shared<BoundFlagRef>(ref)) {}

                template<typename LambdaT>
                Opt(LambdaT const &ref, std::string const &hint) : ParserRefImpl(ref, hint) {}

                template<typename T>
                Opt(T &ref, std::string const &hint) : ParserRefImpl(ref, hint) {}

                auto operator[](std::string const &optName) -> Opt & {
                    m_optNames.push_back(optName);
                    return *this;
                }

                auto getHelpColumns() const -> std::vector<HelpColumns> {
                    std::ostringstream oss;
                    bool first = true;
                    for (auto const &opt : m_optNames) {
                        if (first)
                            first = false;
                        else
                            oss << ", ";
                        oss << opt;
                    }
                    if (!m_hint.empty())
                        oss << " <" << m_hint << ">";
                    return{ { oss.str(), m_description } };
                }

                auto isMatch(std::string const &optToken) const -> bool {
                    auto normalisedToken = normaliseOpt(optToken);
                    for (auto const &name : m_optNames) {
                        if (normaliseOpt(name) == normalisedToken)
                            return true;
                    }
                    return false;
                }

                using ParserBase::parse;

                auto parse(std::string const&, TokenStream const &tokens) const -> InternalParseResult override {
                    auto validationResult = validate();
                    if (!validationResult)
                        return InternalParseResult(validationResult);

                    auto remainingTokens = tokens;
                    if (remainingTokens && remainingTokens->type == TokenType::Option) {
                        auto const &token = *remainingTokens;
                        if (isMatch(token.token)) {
                            if (m_ref->isFlag()) {
                                auto result = m_ref->setFlag(true);
                                if (!result)
                                    return InternalParseResult(result);
                                if (result.value() == ParseResultType::ShortCircuitAll)
                                    return InternalParseResult::ok(ParseState(result.value(), remainingTokens));
                            } else {
                                ++remainingTokens;
                                if (!remainingTokens)
                                    return InternalParseResult::runtimeError("Expected argument following " + token.token);
                                auto const &argToken = *remainingTokens;
                                if (argToken.type != TokenType::Argument)
                                    return InternalParseResult::runtimeError("Expected argument following " + token.token);
                                auto result = m_ref->setValue(argToken.token);
                                if (!result)
                                    return InternalParseResult(result);
                                if (result.value() == ParseResultType::ShortCircuitAll)
                                    return InternalParseResult::ok(ParseState(result.value(), remainingTokens));
                            }
                            return InternalParseResult::ok(ParseState(ParseResultType::Matched, ++remainingTokens));
                        }
                    }
                    return InternalParseResult::ok(ParseState(ParseResultType::NoMatch, remainingTokens));
                }

                auto validate() const -> Result override {
                    if (m_optNames.empty())
                        return Result::logicError("No options supplied to Opt");
                    for (auto const &name : m_optNames) {
                        if (name.empty())
                            return Result::logicError("Option name cannot be empty");
#ifdef CATCH_PLATFORM_WINDOWS
                        if (name[0] != '-' && name[0] != '/')
                            return Result::logicError("Option name must begin with '-' or '/'");
#else
                        if (name[0] != '-')
                            return Result::logicError("Option name must begin with '-'");
#endif
                    }
                    return ParserRefImpl::validate();
                }
            };

            struct Help : Opt {
                Help(bool &showHelpFlag)
                    : Opt([&](bool flag) {
                    showHelpFlag = flag;
                    return ParserResult::ok(ParseResultType::ShortCircuitAll);
                }) {
                    static_cast<Opt &>(*this)
                        ("display usage information")
                        ["-?"]["-h"]["--help"]
                        .optional();
                }
            };

            struct Parser : ParserBase {

                mutable ExeName m_exeName;
                std::vector<Opt> m_options;
                std::vector<Arg> m_args;

                auto operator|=(ExeName const &exeName) -> Parser & {
                    m_exeName = exeName;
                    return *this;
                }

                auto operator|=(Arg const &arg) -> Parser & {
                    m_args.push_back(arg);
                    return *this;
                }

                auto operator|=(Opt const &opt) -> Parser & {
                    m_options.push_back(opt);
                    return *this;
                }

                auto operator|=(Parser const &other) -> Parser & {
                    m_options.insert(m_options.end(), other.m_options.begin(), other.m_options.end());
                    m_args.insert(m_args.end(), other.m_args.begin(), other.m_args.end());
                    return *this;
                }

                template<typename T>
                auto operator|(T const &other) const -> Parser {
                    return Parser(*this) |= other;
                }

                auto getHelpColumns() const -> std::vector<HelpColumns> {
                    std::vector<HelpColumns> cols;
                    for (auto const &o : m_options) {
                        auto childCols = o.getHelpColumns();
                        cols.insert(cols.end(), childCols.begin(), childCols.end());
                    }
                    return cols;
                }

                void writeToStream(std::ostream &os) const {
                    if (!m_exeName.name().empty()) {
                        os << "usage:\n" << "  " << m_exeName.name() << " ";
                        bool required = true, first = true;
                        for (auto const &arg : m_args) {
                            if (first)
                                first = false;
                            else
                                os << " ";
                            if (arg.isOptional() && required) {
                                os << "[";
                                required = false;
                            }
                            os << "<" << arg.hint() << ">";
                            if (arg.cardinality() == 0)
                                os << " ... ";
                        }
                        if (!required)
                            os << "]";
                        if (!m_options.empty())
                            os << " options";
                        os << "\n\nwhere options are:" << std::endl;
                    }

                    auto rows = getHelpColumns();
                    size_t consoleWidth = CATCH_CLARA_CONFIG_CONSOLE_WIDTH;
                    size_t optWidth = 0;
                    for (auto const &cols : rows)
                        optWidth = (std::max)(optWidth, cols.left.size() + 2);

                    for (auto const &cols : rows) {
                        auto row =
                            TextFlow::Column(cols.left).width(optWidth).indent(2) +
                            TextFlow::Spacer(4) +
                            TextFlow::Column(cols.right).width(consoleWidth - 7 - optWidth);
                        os << row << std::endl;
                    }
                }

                friend auto operator<<(std::ostream &os, Parser const &parser) -> std::ostream& {
                    parser.writeToStream(os);
                    return os;
                }

                auto validate() const -> Result override {
                    for (auto const &opt : m_options) {
                        auto result = opt.validate();
                        if (!result)
                            return result;
                    }
                    for (auto const &arg : m_args) {
                        auto result = arg.validate();
                        if (!result)
                            return result;
                    }
                    return Result::ok();
                }

                using ParserBase::parse;

                auto parse(std::string const& exeName, TokenStream const &tokens) const -> InternalParseResult override {

                    struct ParserInfo {
                        ParserBase const* parser = nullptr;
                        size_t count = 0;
                    };
                    const size_t totalParsers = m_options.size() + m_args.size();
                    assert(totalParsers < 512);
                    // ParserInfo parseInfos[totalParsers]; // <-- this is what we really want to do
                    ParserInfo parseInfos[512];

                    {
                        size_t i = 0;
                        for (auto const &opt : m_options) parseInfos[i++].parser = &opt;
                        for (auto const &arg : m_args) parseInfos[i++].parser = &arg;
                    }

                    m_exeName.set(exeName);

                    auto result = InternalParseResult::ok(ParseState(ParseResultType::NoMatch, tokens));
                    while (result.value().remainingTokens()) {
                        bool tokenParsed = false;

                        for (size_t i = 0; i < totalParsers; ++i) {
                            auto&  parseInfo = parseInfos[i];
                            if (parseInfo.parser->cardinality() == 0 || parseInfo.count < parseInfo.parser->cardinality()) {
                                result = parseInfo.parser->parse(exeName, result.value().remainingTokens());
                                if (!result)
                                    return result;
                                if (result.value().type() != ParseResultType::NoMatch) {
                                    tokenParsed = true;
                                    ++parseInfo.count;
                                    break;
                                }
                            }
                        }

                        if (result.value().type() == ParseResultType::ShortCircuitAll)
                            return result;
                        if (!tokenParsed)
                            return InternalParseResult::runtimeError("Unrecognised token: " + result.value().remainingTokens()->token);
                    }
                    // !TBD Check missing required options
                    return result;
                }
            };

            template<typename DerivedT>
            template<typename T>
            auto ComposableParserImpl<DerivedT>::operator|(T const &other) const -> Parser {
                return Parser() | static_cast<DerivedT const &>(*this) | other;
            }
        } // namespace detail

          // A Combined parser
        using detail::Parser;

        // A parser for options
        using detail::Opt;

        // A parser for arguments
        using detail::Arg;

        // Wrapper for argc, argv from main()
        using detail::Args;

        // Specifies the name of the executable
        using detail::ExeName;

        // Convenience wrapper for option parser that specifies the help option
        using detail::Help;

        // enum of result types from a parse
        using detail::ParseResultType;

        // Result type for parser operation
        using detail::ParserResult;

    }
} // namespace Catch::clara

  // end clara.hpp
#ifdef __clang__
#pragma clang diagnostic pop
#endif

  // Restore Clara's value for console width, if present
#ifdef CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
#define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
#undef CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
#endif

  // end catch_clara.h
namespace Catch {

    clara::Parser makeCommandLineParser(ConfigData& config);

} // end namespace Catch

  // end catch_commandline.h
#include <fstream>
#include <ctime>

namespace Catch {

    clara::Parser makeCommandLineParser(ConfigData& config) {

        using namespace clara;

        auto const setWarning = [&](std::string const& warning) {
            if (warning != "NoAssertions")
                return ParserResult::runtimeError("Unrecognised warning: '" + warning + "'");
            config.warnings = static_cast<WarnAbout::What>(config.warnings | WarnAbout::NoAssertions);
            return ParserResult::ok(ParseResultType::Matched);
        };
        auto const loadTestNamesFromFile = [&](std::string const& filename) {
            std::ifstream f(filename.c_str());
            if (!f.is_open())
                return ParserResult::runtimeError("Unable to load input file: '" + filename + "'");

            std::string line;
            while (std::getline(f, line)) {
                line = trim(line);
                if (!line.empty() && !startsWith(line, '#')) {
                    if (!startsWith(line, '"'))
                        line = '"' + line + '"';
                    config.testsOrTags.push_back(line + ',');
                }
            }
            return ParserResult::ok(ParseResultType::Matched);
        };
        auto const setTestOrder = [&](std::string const& order) {
            if (startsWith("declared", order))
                config.runOrder = RunTests::InDeclarationOrder;
            else if (startsWith("lexical", order))
                config.runOrder = RunTests::InLexicographicalOrder;
            else if (startsWith("random", order))
                config.runOrder = RunTests::InRandomOrder;
            else
                return clara::ParserResult::runtimeError("Unrecognised ordering: '" + order + "'");
            return ParserResult::ok(ParseResultType::Matched);
        };
        auto const setRngSeed = [&](std::string const& seed) {
            if (seed != "time")
                return clara::detail::convertInto(seed, config.rngSeed);
            config.rngSeed = static_cast<unsigned int>(std::time(nullptr));
            return ParserResult::ok(ParseResultType::Matched);
        };
        auto const setColourUsage = [&](std::string const& useColour) {
            auto mode = toLower(useColour);

            if (mode == "yes")
                config.useColour = UseColour::Yes;
            else if (mode == "no")
                config.useColour = UseColour::No;
            else if (mode == "auto")
                config.useColour = UseColour::Auto;
            else
                return ParserResult::runtimeError("colour mode must be one of: auto, yes or no. '" + useColour + "' not recognised");
            return ParserResult::ok(ParseResultType::Matched);
        };
        auto const setWaitForKeypress = [&](std::string const& keypress) {
            auto keypressLc = toLower(keypress);
            if (keypressLc == "start")
                config.waitForKeypress = WaitForKeypress::BeforeStart;
            else if (keypressLc == "exit")
                config.waitForKeypress = WaitForKeypress::BeforeExit;
            else if (keypressLc == "both")
                config.waitForKeypress = WaitForKeypress::BeforeStartAndExit;
            else
                return ParserResult::runtimeError("keypress argument must be one of: start, exit or both. '" + keypress + "' not recognised");
            return ParserResult::ok(ParseResultType::Matched);
        };
        auto const setVerbosity = [&](std::string const& verbosity) {
            auto lcVerbosity = toLower(verbosity);
            if (lcVerbosity == "quiet")
                config.verbosity = Verbosity::Quiet;
            else if (lcVerbosity == "normal")
                config.verbosity = Verbosity::Normal;
            else if (lcVerbosity == "high")
                config.verbosity = Verbosity::High;
            else
                return ParserResult::runtimeError("Unrecognised verbosity, '" + verbosity + "'");
            return ParserResult::ok(ParseResultType::Matched);
        };

        auto cli
            = ExeName(config.processName)
            | Help(config.showHelp)
            | Opt(config.listTests)
            ["-l"]["--list-tests"]
            ("list all/matching test cases")
            | Opt(config.listTags)
            ["-t"]["--list-tags"]
            ("list all/matching tags")
            | Opt(config.showSuccessfulTests)
            ["-s"]["--success"]
            ("include successful tests in output")
            | Opt(config.shouldDebugBreak)
            ["-b"]["--break"]
            ("break into debugger on failure")
            | Opt(config.noThrow)
            ["-e"]["--nothrow"]
            ("skip exception tests")
            | Opt(config.showInvisibles)
            ["-i"]["--invisibles"]
            ("show invisibles (tabs, newlines)")
            | Opt(config.outputFilename, "filename")
            ["-o"]["--out"]
            ("output filename")
            | Opt(config.reporterNames, "name")
            ["-r"]["--reporter"]
            ("reporter to use (defaults to console)")
            | Opt(config.name, "name")
            ["-n"]["--name"]
            ("suite name")
            | Opt([&](bool) { config.abortAfter = 1; })
            ["-a"]["--abort"]
            ("abort at first failure")
            | Opt([&](int x) { config.abortAfter = x; }, "no. failures")
            ["-x"]["--abortx"]
            ("abort after x failures")
            | Opt(setWarning, "warning name")
            ["-w"]["--warn"]
            ("enable warnings")
            | Opt([&](bool flag) { config.showDurations = flag ? ShowDurations::Always : ShowDurations::Never; }, "yes|no")
            ["-d"]["--durations"]
            ("show test durations")
            | Opt(loadTestNamesFromFile, "filename")
            ["-f"]["--input-file"]
            ("load test names to run from a file")
            | Opt(config.filenamesAsTags)
            ["-#"]["--filenames-as-tags"]
            ("adds a tag for the filename")
            | Opt(config.sectionsToRun, "section name")
            ["-c"]["--section"]
            ("specify section to run")
            | Opt(setVerbosity, "quiet|normal|high")
            ["-v"]["--verbosity"]
            ("set output verbosity")
            | Opt(config.listTestNamesOnly)
            ["--list-test-names-only"]
        ("list all/matching test cases names only")
            | Opt(config.listReporters)
            ["--list-reporters"]
        ("list all reporters")
            | Opt(setTestOrder, "decl|lex|rand")
            ["--order"]
        ("test case order (defaults to decl)")
            | Opt(setRngSeed, "'time'|number")
            ["--rng-seed"]
        ("set a specific seed for random numbers")
            | Opt(setColourUsage, "yes|no")
            ["--use-colour"]
        ("should output be colourised")
            | Opt(config.libIdentify)
            ["--libidentify"]
        ("report name and version according to libidentify standard")
            | Opt(setWaitForKeypress, "start|exit|both")
            ["--wait-for-keypress"]
        ("waits for a keypress before exiting")
            | Opt(config.benchmarkResolutionMultiple, "multiplier")
            ["--benchmark-resolution-multiple"]
        ("multiple of clock resolution to run benchmarks")

            | Arg(config.testsOrTags, "test name|pattern|tags")
            ("which test or tests to use");

        return cli;
    }

} // end namespace Catch
  // end catch_commandline.cpp
  // start catch_common.cpp

#include <cstring>
#include <ostream>

namespace Catch {

    SourceLineInfo::SourceLineInfo(char const* _file, std::size_t _line) noexcept
        :   file(_file),
        line(_line) {
    }
    bool SourceLineInfo::empty() const noexcept {
        return file[0] == '\0';
    }
    bool SourceLineInfo::operator == (SourceLineInfo const& other) const noexcept {
        return line == other.line && (file == other.file || std::strcmp(file, other.file) == 0);
    }
    bool SourceLineInfo::operator < (SourceLineInfo const& other) const noexcept {
        return line < other.line || (line == other.line && (std::strcmp(file, other.file) < 0));
    }

    std::ostream& operator << (std::ostream& os, SourceLineInfo const& info) {
#ifndef __GNUG__
        os << info.file << '(' << info.line << ')';
#else
        os << info.file << ':' << info.line;
#endif
        return os;
    }

    bool isTrue(bool value) { return value; }
    bool alwaysTrue() { return true; }
    bool alwaysFalse() { return false; }

    std::string StreamEndStop::operator+() const {
        return std::string();
    }

    NonCopyable::NonCopyable() = default;
    NonCopyable::~NonCopyable() = default;

}
// end catch_common.cpp
// start catch_config.cpp

namespace Catch {

    Config::Config(ConfigData const& data)
        : m_data(data),
        m_stream(openStream()) {
        if (!data.testsOrTags.empty()) {
            TestSpecParser parser(ITagAliasRegistry::get());
            for (auto const& testOrTags : data.testsOrTags)
                parser.parse(testOrTags);
            m_testSpec = parser.testSpec();
        }
    }

    std::string const& Config::getFilename() const {
        return m_data.outputFilename;
    }

    bool Config::listTests() const { return m_data.listTests; }
    bool Config::listTestNamesOnly() const { return m_data.listTestNamesOnly; }
    bool Config::listTags() const { return m_data.listTags; }
    bool Config::listReporters() const { return m_data.listReporters; }

    std::string Config::getProcessName() const { return m_data.processName; }

    std::vector<std::string> const& Config::getReporterNames() const { return m_data.reporterNames; }
    std::vector<std::string> const& Config::getSectionsToRun() const { return m_data.sectionsToRun; }

    TestSpec const& Config::testSpec() const { return m_testSpec; }

    bool Config::showHelp() const { return m_data.showHelp; }

    // IConfig interface
    bool Config::allowThrows() const { return !m_data.noThrow; }
    std::ostream& Config::stream() const { return m_stream->stream(); }
    std::string Config::name() const { return m_data.name.empty() ? m_data.processName : m_data.name; }
    bool Config::includeSuccessfulResults() const { return m_data.showSuccessfulTests; }
    bool Config::warnAboutMissingAssertions() const { return m_data.warnings & WarnAbout::NoAssertions; }
    ShowDurations::OrNot Config::showDurations() const { return m_data.showDurations; }
    RunTests::InWhatOrder Config::runOrder() const { return m_data.runOrder; }
    unsigned int Config::rngSeed() const { return m_data.rngSeed; }
    int Config::benchmarkResolutionMultiple() const { return m_data.benchmarkResolutionMultiple; }
    UseColour::YesOrNo Config::useColour() const { return m_data.useColour; }
    bool Config::shouldDebugBreak() const { return m_data.shouldDebugBreak; }
    int Config::abortAfter() const { return m_data.abortAfter; }
    bool Config::showInvisibles() const { return m_data.showInvisibles; }
    Verbosity Config::verbosity() const { return m_data.verbosity; }

    IStream const* Config::openStream() {
        if (m_data.outputFilename.empty())
            return new CoutStream();
        else if (m_data.outputFilename[0] == '%') {
            if (m_data.outputFilename == "%debug")
                return new DebugOutStream();
            else
                CATCH_ERROR("Unrecognised stream: '" << m_data.outputFilename << "'");
        } else
            return new FileStream(m_data.outputFilename);
    }

} // end namespace Catch
  // end catch_config.cpp
  // start catch_console_colour.cpp

#if defined(__clang__)
#    pragma clang diagnostic push
#    pragma clang diagnostic ignored "-Wexit-time-destructors"
#endif

  // start catch_errno_guard.h

namespace Catch {

    class ErrnoGuard {
    public:
        ErrnoGuard();
        ~ErrnoGuard();
    private:
        int m_oldErrno;
    };

}

// end catch_errno_guard.h
// start catch_windows_h_proxy.h


#if defined(CATCH_PLATFORM_WINDOWS)

#if !defined(NOMINMAX) && !defined(CATCH_CONFIG_NO_NOMINMAX)
#  define CATCH_DEFINED_NOMINMAX
#  define NOMINMAX
#endif
#if !defined(WIN32_LEAN_AND_MEAN) && !defined(CATCH_CONFIG_NO_WIN32_LEAN_AND_MEAN)
#  define CATCH_DEFINED_WIN32_LEAN_AND_MEAN
#  define WIN32_LEAN_AND_MEAN
#endif

#ifdef __AFXDLL
#include <AfxWin.h>
#else
#include <windows.h>
#endif

#ifdef CATCH_DEFINED_NOMINMAX
#  undef NOMINMAX
#endif
#ifdef CATCH_DEFINED_WIN32_LEAN_AND_MEAN
#  undef WIN32_LEAN_AND_MEAN
#endif

#endif // defined(CATCH_PLATFORM_WINDOWS)

// end catch_windows_h_proxy.h
namespace Catch {
    namespace {

        struct IColourImpl {
            virtual ~IColourImpl() = default;
            virtual void use(Colour::Code _colourCode) = 0;
        };

        struct NoColourImpl : IColourImpl {
            void use(Colour::Code) {}

            static IColourImpl* instance() {
                static NoColourImpl s_instance;
                return &s_instance;
            }
        };

    } // anon namespace
} // namespace Catch

#if !defined( CATCH_CONFIG_COLOUR_NONE ) && !defined( CATCH_CONFIG_COLOUR_WINDOWS ) && !defined( CATCH_CONFIG_COLOUR_ANSI )
#   ifdef CATCH_PLATFORM_WINDOWS
#       define CATCH_CONFIG_COLOUR_WINDOWS
#   else
#       define CATCH_CONFIG_COLOUR_ANSI
#   endif
#endif

#if defined ( CATCH_CONFIG_COLOUR_WINDOWS ) /////////////////////////////////////////

namespace Catch {
    namespace {

        class Win32ColourImpl : public IColourImpl {
        public:
            Win32ColourImpl() : stdoutHandle(GetStdHandle(STD_OUTPUT_HANDLE)) {
                CONSOLE_SCREEN_BUFFER_INFO csbiInfo;
                GetConsoleScreenBufferInfo(stdoutHandle, &csbiInfo);
                originalForegroundAttributes = csbiInfo.wAttributes & ~(BACKGROUND_GREEN | BACKGROUND_RED | BACKGROUND_BLUE | BACKGROUND_INTENSITY);
                originalBackgroundAttributes = csbiInfo.wAttributes & ~(FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_INTENSITY);
            }

            virtual void use(Colour::Code _colourCode) override {
                switch (_colourCode) {
                    case Colour::None:      return setTextAttribute(originalForegroundAttributes);
                    case Colour::White:     return setTextAttribute(FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE);
                    case Colour::Red:       return setTextAttribute(FOREGROUND_RED);
                    case Colour::Green:     return setTextAttribute(FOREGROUND_GREEN);
                    case Colour::Blue:      return setTextAttribute(FOREGROUND_BLUE);
                    case Colour::Cyan:      return setTextAttribute(FOREGROUND_BLUE | FOREGROUND_GREEN);
                    case Colour::Yellow:    return setTextAttribute(FOREGROUND_RED | FOREGROUND_GREEN);
                    case Colour::Grey:      return setTextAttribute(0);

                    case Colour::LightGrey:     return setTextAttribute(FOREGROUND_INTENSITY);
                    case Colour::BrightRed:     return setTextAttribute(FOREGROUND_INTENSITY | FOREGROUND_RED);
                    case Colour::BrightGreen:   return setTextAttribute(FOREGROUND_INTENSITY | FOREGROUND_GREEN);
                    case Colour::BrightWhite:   return setTextAttribute(FOREGROUND_INTENSITY | FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE);

                    case Colour::Bright: CATCH_INTERNAL_ERROR("not a colour");
                }
            }

        private:
            void setTextAttribute(WORD _textAttribute) {
                SetConsoleTextAttribute(stdoutHandle, _textAttribute | originalBackgroundAttributes);
            }
            HANDLE stdoutHandle;
            WORD originalForegroundAttributes;
            WORD originalBackgroundAttributes;
        };

        IColourImpl* platformColourInstance() {
            static Win32ColourImpl s_instance;

            IConfigPtr config = getCurrentContext().getConfig();
            UseColour::YesOrNo colourMode = config
                ? config->useColour()
                : UseColour::Auto;
            if (colourMode == UseColour::Auto)
                colourMode = UseColour::Yes;
            return colourMode == UseColour::Yes
                ? &s_instance
                : NoColourImpl::instance();
        }

    } // end anon namespace
} // end namespace Catch

#elif defined( CATCH_CONFIG_COLOUR_ANSI ) //////////////////////////////////////

#include <unistd.h>

namespace Catch {
    namespace {

        // use POSIX/ ANSI console terminal codes
        // Thanks to Adam Strzelecki for original contribution
        // (http://github.com/nanoant)
        // https://github.com/philsquared/Catch/pull/131
        class PosixColourImpl : public IColourImpl {
        public:
            virtual void use(Colour::Code _colourCode) override {
                switch (_colourCode) {
                    case Colour::None:
                    case Colour::White:     return setColour("[0m");
                    case Colour::Red:       return setColour("[0;31m");
                    case Colour::Green:     return setColour("[0;32m");
                    case Colour::Blue:      return setColour("[0;34m");
                    case Colour::Cyan:      return setColour("[0;36m");
                    case Colour::Yellow:    return setColour("[0;33m");
                    case Colour::Grey:      return setColour("[1;30m");

                    case Colour::LightGrey:     return setColour("[0;37m");
                    case Colour::BrightRed:     return setColour("[1;31m");
                    case Colour::BrightGreen:   return setColour("[1;32m");
                    case Colour::BrightWhite:   return setColour("[1;37m");

                    case Colour::Bright: CATCH_INTERNAL_ERROR("not a colour");
                }
            }
            static IColourImpl* instance() {
                static PosixColourImpl s_instance;
                return &s_instance;
            }

        private:
            void setColour(const char* _escapeCode) {
                Catch::cout() << '\033' << _escapeCode;
            }
        };

        bool useColourOnPlatform() {
            return
#ifdef CATCH_PLATFORM_MAC
                !isDebuggerActive() &&
#endif
                isatty(STDOUT_FILENO);
        }
        IColourImpl* platformColourInstance() {
            ErrnoGuard guard;
            IConfigPtr config = getCurrentContext().getConfig();
            UseColour::YesOrNo colourMode = config
                ? config->useColour()
                : UseColour::Auto;
            if (colourMode == UseColour::Auto)
                colourMode = useColourOnPlatform()
                ? UseColour::Yes
                : UseColour::No;
            return colourMode == UseColour::Yes
                ? PosixColourImpl::instance()
                : NoColourImpl::instance();
        }

    } // end anon namespace
} // end namespace Catch

#else  // not Windows or ANSI ///////////////////////////////////////////////

namespace Catch {

    static IColourImpl* platformColourInstance() { return NoColourImpl::instance(); }

} // end namespace Catch

#endif // Windows/ ANSI/ None

namespace Catch {

    Colour::Colour(Code _colourCode) { use(_colourCode); }
    Colour::Colour(Colour&& rhs) noexcept {
        m_moved = rhs.m_moved;
        rhs.m_moved = true;
    }
    Colour& Colour::operator=(Colour&& rhs) noexcept {
        m_moved = rhs.m_moved;
        rhs.m_moved = true;
        return *this;
    }

    Colour::~Colour() { if (!m_moved) use(None); }

    void Colour::use(Code _colourCode) {
        static IColourImpl* impl = platformColourInstance();
        impl->use(_colourCode);
    }

    std::ostream& operator << (std::ostream& os, Colour const&) {
        return os;
    }

} // end namespace Catch

#if defined(__clang__)
#    pragma clang diagnostic pop
#endif

  // end catch_console_colour.cpp
  // start catch_context.cpp

namespace Catch {

    class Context : public IMutableContext, NonCopyable {

    public: // IContext
        virtual IResultCapture* getResultCapture() override {
            return m_resultCapture;
        }
        virtual IRunner* getRunner() override {
            return m_runner;
        }

        virtual IConfigPtr getConfig() const override {
            return m_config;
        }

        virtual ~Context() override;

    public: // IMutableContext
        virtual void setResultCapture(IResultCapture* resultCapture) override {
            m_resultCapture = resultCapture;
        }
        virtual void setRunner(IRunner* runner) override {
            m_runner = runner;
        }
        virtual void setConfig(IConfigPtr const& config) override {
            m_config = config;
        }

        friend IMutableContext& getCurrentMutableContext();

    private:
        IConfigPtr m_config;
        IRunner* m_runner = nullptr;
        IResultCapture* m_resultCapture = nullptr;
    };

    namespace {
        Context* currentContext = nullptr;
    }
    IMutableContext& getCurrentMutableContext() {
        if (!currentContext)
            currentContext = new Context();
        return *currentContext;
    }
    IContext& getCurrentContext() {
        return getCurrentMutableContext();
    }

    void cleanUpContext() {
        delete currentContext;
        currentContext = nullptr;
    }
    IContext::~IContext() = default;
    IMutableContext::~IMutableContext() = default;
    Context::~Context() = default;
}
// end catch_context.cpp
// start catch_debug_console.cpp

// start catch_debug_console.h

#include <string>

namespace Catch {
    void writeToDebugConsole(std::string const& text);
}

// end catch_debug_console.h
#ifdef CATCH_PLATFORM_WINDOWS

namespace Catch {
    void writeToDebugConsole(std::string const& text) {
        ::OutputDebugStringA(text.c_str());
    }
}
#else
namespace Catch {
    void writeToDebugConsole(std::string const& text) {
        // !TBD: Need a version for Mac/ XCode and other IDEs
        Catch::cout() << text;
    }
}
#endif // Platform
// end catch_debug_console.cpp
// start catch_debugger.cpp

#ifdef CATCH_PLATFORM_MAC

#include <assert.h>
#include <stdbool.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/sysctl.h>

namespace Catch {

    // The following function is taken directly from the following technical note:
    // http://developer.apple.com/library/mac/#qa/qa2004/qa1361.html

    // Returns true if the current process is being debugged (either
    // running under the debugger or has a debugger attached post facto).
    bool isDebuggerActive() {

        int                 mib[4];
        struct kinfo_proc   info;
        std::size_t         size;

        // Initialize the flags so that, if sysctl fails for some bizarre
        // reason, we get a predictable result.

        info.kp_proc.p_flag = 0;

        // Initialize mib, which tells sysctl the info we want, in this case
        // we're looking for information about a specific process ID.

        mib[0] = CTL_KERN;
        mib[1] = KERN_PROC;
        mib[2] = KERN_PROC_PID;
        mib[3] = getpid();

        // Call sysctl.

        size = sizeof(info);
        if (sysctl(mib, sizeof(mib) / sizeof(*mib), &info, &size, nullptr, 0) != 0) {
            Catch::cerr() << "\n** Call to sysctl failed - unable to determine if debugger is active **\n" << std::endl;
            return false;
        }

        // We're being debugged if the P_TRACED flag is set.

        return ((info.kp_proc.p_flag & P_TRACED) != 0);
    }
} // namespace Catch

#elif defined(CATCH_PLATFORM_LINUX)
#include <fstream>
#include <string>

namespace Catch {
    // The standard POSIX way of detecting a debugger is to attempt to
    // ptrace() the process, but this needs to be done from a child and not
    // this process itself to still allow attaching to this process later
    // if wanted, so is rather heavy. Under Linux we have the PID of the
    // "debugger" (which doesn't need to be gdb, of course, it could also
    // be strace, for example) in /proc/$PID/status, so just get it from
    // there instead.
    bool isDebuggerActive() {
        // Libstdc++ has a bug, where std::ifstream sets errno to 0
        // This way our users can properly assert over errno values
        ErrnoGuard guard;
        std::ifstream in("/proc/self/status");
        for (std::string line; std::getline(in, line); ) {
            static const int PREFIX_LEN = 11;
            if (line.compare(0, PREFIX_LEN, "TracerPid:\t") == 0) {
                // We're traced if the PID is not 0 and no other PID starts
                // with 0 digit, so it's enough to check for just a single
                // character.
                return line.length() > PREFIX_LEN && line[PREFIX_LEN] != '0';
            }
        }

        return false;
    }
} // namespace Catch
#elif defined(_MSC_VER)
extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
namespace Catch {
    bool isDebuggerActive() {
        return IsDebuggerPresent() != 0;
    }
}
#elif defined(__MINGW32__)
extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
namespace Catch {
    bool isDebuggerActive() {
        return IsDebuggerPresent() != 0;
    }
}
#else
namespace Catch {
    bool isDebuggerActive() { return false; }
}
#endif // Platform
// end catch_debugger.cpp
// start catch_decomposer.cpp

namespace Catch {

    ITransientExpression::~ITransientExpression() = default;

    void formatReconstructedExpression(std::ostream &os, std::string const& lhs, StringRef op, std::string const& rhs) {
        if (lhs.size() + rhs.size() < 40 &&
            lhs.find('\n') == std::string::npos &&
            rhs.find('\n') == std::string::npos)
            os << lhs << " " << op << " " << rhs;
        else
            os << lhs << "\n" << op << "\n" << rhs;
    }
}
// end catch_decomposer.cpp
// start catch_errno_guard.cpp

#include <cerrno>

namespace Catch {
    ErrnoGuard::ErrnoGuard() :m_oldErrno(errno) {}
    ErrnoGuard::~ErrnoGuard() { errno = m_oldErrno; }
}
// end catch_errno_guard.cpp
// start catch_exception_translator_registry.cpp

// start catch_exception_translator_registry.h

#include <vector>
#include <string>
#include <memory>

namespace Catch {

    class ExceptionTranslatorRegistry : public IExceptionTranslatorRegistry {
    public:
        ~ExceptionTranslatorRegistry();
        virtual void registerTranslator(const IExceptionTranslator* translator);
        virtual std::string translateActiveException() const override;
        std::string tryTranslators() const;

    private:
        std::vector<std::unique_ptr<IExceptionTranslator const>> m_translators;
    };
}

// end catch_exception_translator_registry.h
#ifdef __OBJC__
#import "Foundation/Foundation.h"
#endif

namespace Catch {

    ExceptionTranslatorRegistry::~ExceptionTranslatorRegistry() {
    }

    void ExceptionTranslatorRegistry::registerTranslator(const IExceptionTranslator* translator) {
        m_translators.push_back(std::unique_ptr<const IExceptionTranslator>(translator));
    }

    std::string ExceptionTranslatorRegistry::translateActiveException() const {
        try {
#ifdef __OBJC__
            // In Objective-C try objective-c exceptions first
            @try {
                return tryTranslators();
            }
            @catch (NSException *exception) {
                return Catch::Detail::stringify([exception description]);
            }
#else
            return tryTranslators();
#endif
        } catch (TestFailureException&) {
            std::rethrow_exception(std::current_exception());
        } catch (std::exception& ex) {
            return ex.what();
        } catch (std::string& msg) {
            return msg;
        } catch (const char* msg) {
            return msg;
        } catch (...) {
            return "Unknown exception";
        }
    }

    std::string ExceptionTranslatorRegistry::tryTranslators() const {
        if (m_translators.empty())
            std::rethrow_exception(std::current_exception());
        else
            return m_translators[0]->translate(m_translators.begin() + 1, m_translators.end());
    }
}
// end catch_exception_translator_registry.cpp
// start catch_fatal_condition.cpp

// start catch_fatal_condition.h

#include <string>

#if defined ( CATCH_PLATFORM_WINDOWS ) /////////////////////////////////////////

#  if !defined ( CATCH_CONFIG_WINDOWS_SEH )

namespace Catch {
    struct FatalConditionHandler {
        void reset();
    };
}

#  else // CATCH_CONFIG_WINDOWS_SEH is defined

namespace Catch {

    struct FatalConditionHandler {

        static LONG CALLBACK handleVectoredException(PEXCEPTION_POINTERS ExceptionInfo);
        FatalConditionHandler();
        static void reset();
        ~FatalConditionHandler();

    private:
        static bool isSet;
        static ULONG guaranteeSize;
        static PVOID exceptionHandlerHandle;
    };

} // namespace Catch

#  endif // CATCH_CONFIG_WINDOWS_SEH

#else // Not Windows - assumed to be POSIX compatible //////////////////////////

#  if !defined(CATCH_CONFIG_POSIX_SIGNALS)

namespace Catch {
    struct FatalConditionHandler {
        void reset();
    };
}

#  else // CATCH_CONFIG_POSIX_SIGNALS is defined

#include <signal.h>

namespace Catch {

    struct FatalConditionHandler {

        static bool isSet;
        static struct sigaction oldSigActions[];// [sizeof(signalDefs) / sizeof(SignalDefs)];
        static stack_t oldSigStack;
        static char altStackMem[];

        static void handleSignal(int sig);

        FatalConditionHandler();
        ~FatalConditionHandler();
        static void reset();
    };

} // namespace Catch

#  endif // CATCH_CONFIG_POSIX_SIGNALS

#endif // not Windows

  // end catch_fatal_condition.h
namespace {
    // Report the error condition
    void reportFatal(char const * const message) {
        Catch::getCurrentContext().getResultCapture()->handleFatalErrorCondition(message);
    }
}

#if defined ( CATCH_PLATFORM_WINDOWS ) /////////////////////////////////////////

#  if !defined ( CATCH_CONFIG_WINDOWS_SEH )

namespace Catch {
    void FatalConditionHandler::reset() {}
}

#  else // CATCH_CONFIG_WINDOWS_SEH is defined

namespace Catch {
    struct SignalDefs { DWORD id; const char* name; };

    // There is no 1-1 mapping between signals and windows exceptions.
    // Windows can easily distinguish between SO and SigSegV,
    // but SigInt, SigTerm, etc are handled differently.
    static SignalDefs signalDefs[] = {
        { EXCEPTION_ILLEGAL_INSTRUCTION,  "SIGILL - Illegal instruction signal" },
        { EXCEPTION_STACK_OVERFLOW, "SIGSEGV - Stack overflow" },
        { EXCEPTION_ACCESS_VIOLATION, "SIGSEGV - Segmentation violation signal" },
        { EXCEPTION_INT_DIVIDE_BY_ZERO, "Divide by zero error" },
    };

    LONG CALLBACK FatalConditionHandler::handleVectoredException(PEXCEPTION_POINTERS ExceptionInfo) {
        for (auto const& def : signalDefs) {
            if (ExceptionInfo->ExceptionRecord->ExceptionCode == def.id) {
                reportFatal(def.name);
            }
        }
        // If its not an exception we care about, pass it along.
        // This stops us from eating debugger breaks etc.
        return EXCEPTION_CONTINUE_SEARCH;
    }

    FatalConditionHandler::FatalConditionHandler() {
        isSet = true;
        // 32k seems enough for Catch to handle stack overflow,
        // but the value was found experimentally, so there is no strong guarantee
        guaranteeSize = 32 * 1024;
        exceptionHandlerHandle = nullptr;
        // Register as first handler in current chain
        exceptionHandlerHandle = AddVectoredExceptionHandler(1, handleVectoredException);
        // Pass in guarantee size to be filled
        SetThreadStackGuarantee(&guaranteeSize);
    }

    void FatalConditionHandler::reset() {
        if (isSet) {
            // Unregister handler and restore the old guarantee
            RemoveVectoredExceptionHandler(exceptionHandlerHandle);
            SetThreadStackGuarantee(&guaranteeSize);
            exceptionHandlerHandle = nullptr;
            isSet = false;
        }
    }

    FatalConditionHandler::~FatalConditionHandler() {
        reset();
    }

    bool FatalConditionHandler::isSet = false;
    ULONG FatalConditionHandler::guaranteeSize = 0;
    PVOID FatalConditionHandler::exceptionHandlerHandle = nullptr;

} // namespace Catch

#  endif // CATCH_CONFIG_WINDOWS_SEH

#else // Not Windows - assumed to be POSIX compatible //////////////////////////

#  if !defined(CATCH_CONFIG_POSIX_SIGNALS)

namespace Catch {
    void FatalConditionHandler::reset() {}
}

#  else // CATCH_CONFIG_POSIX_SIGNALS is defined

#include <signal.h>

namespace Catch {

    struct SignalDefs {
        int id;
        const char* name;
    };
    static SignalDefs signalDefs[] = {
        { SIGINT,  "SIGINT - Terminal interrupt signal" },
        { SIGILL,  "SIGILL - Illegal instruction signal" },
        { SIGFPE,  "SIGFPE - Floating point error signal" },
        { SIGSEGV, "SIGSEGV - Segmentation violation signal" },
        { SIGTERM, "SIGTERM - Termination request signal" },
        { SIGABRT, "SIGABRT - Abort (abnormal termination) signal" }
    };

    void FatalConditionHandler::handleSignal(int sig) {
        char const * name = "<unknown signal>";
        for (auto const& def : signalDefs) {
            if (sig == def.id) {
                name = def.name;
                break;
            }
        }
        reset();
        reportFatal(name);
        raise(sig);
    }

    FatalConditionHandler::FatalConditionHandler() {
        isSet = true;
        stack_t sigStack;
        sigStack.ss_sp = altStackMem;
        sigStack.ss_size = SIGSTKSZ;
        sigStack.ss_flags = 0;
        sigaltstack(&sigStack, &oldSigStack);
        struct sigaction sa = {};

        sa.sa_handler = handleSignal;
        sa.sa_flags = SA_ONSTACK;
        for (std::size_t i = 0; i < sizeof(signalDefs) / sizeof(SignalDefs); ++i) {
            sigaction(signalDefs[i].id, &sa, &oldSigActions[i]);
        }
    }

    FatalConditionHandler::~FatalConditionHandler() {
        reset();
    }

    void FatalConditionHandler::reset() {
        if (isSet) {
            // Set signals back to previous values -- hopefully nobody overwrote them in the meantime
            for (std::size_t i = 0; i < sizeof(signalDefs) / sizeof(SignalDefs); ++i) {
                sigaction(signalDefs[i].id, &oldSigActions[i], nullptr);
            }
            // Return the old stack
            sigaltstack(&oldSigStack, nullptr);
            isSet = false;
        }
    }

    bool FatalConditionHandler::isSet = false;
    struct sigaction FatalConditionHandler::oldSigActions[sizeof(signalDefs) / sizeof(SignalDefs)] = {};
    stack_t FatalConditionHandler::oldSigStack = {};
    char FatalConditionHandler::altStackMem[SIGSTKSZ] = {};

} // namespace Catch

#  endif // CATCH_CONFIG_POSIX_SIGNALS

#endif // not Windows
  // end catch_fatal_condition.cpp
  // start catch_interfaces_capture.cpp

namespace Catch {
    IResultCapture::~IResultCapture() = default;
}
// end catch_interfaces_capture.cpp
// start catch_interfaces_config.cpp

namespace Catch {
    IConfig::~IConfig() = default;
}
// end catch_interfaces_config.cpp
// start catch_interfaces_exception.cpp

namespace Catch {
    IExceptionTranslator::~IExceptionTranslator() = default;
    IExceptionTranslatorRegistry::~IExceptionTranslatorRegistry() = default;
}
// end catch_interfaces_exception.cpp
// start catch_interfaces_registry_hub.cpp

namespace Catch {
    IRegistryHub::~IRegistryHub() = default;
    IMutableRegistryHub::~IMutableRegistryHub() = default;
}
// end catch_interfaces_registry_hub.cpp
// start catch_interfaces_reporter.cpp

// start catch_reporter_multi.h

namespace Catch {

    class MultipleReporters : public IStreamingReporter {
        using Reporters = std::vector<IStreamingReporterPtr>;
        Reporters m_reporters;

    public:
        void add(IStreamingReporterPtr&& reporter);

    public: // IStreamingReporter

        ReporterPreferences getPreferences() const override;

        void noMatchingTestCases(std::string const& spec) override;

        static std::set<Verbosity> getSupportedVerbosities();

        void benchmarkStarting(BenchmarkInfo const& benchmarkInfo) override;
        void benchmarkEnded(BenchmarkStats const& benchmarkStats) override;

        void testRunStarting(TestRunInfo const& testRunInfo) override;
        void testGroupStarting(GroupInfo const& groupInfo) override;
        void testCaseStarting(TestCaseInfo const& testInfo) override;
        void sectionStarting(SectionInfo const& sectionInfo) override;
        void assertionStarting(AssertionInfo const& assertionInfo) override;

        // The return value indicates if the messages buffer should be cleared:
        bool assertionEnded(AssertionStats const& assertionStats) override;
        void sectionEnded(SectionStats const& sectionStats) override;
        void testCaseEnded(TestCaseStats const& testCaseStats) override;
        void testGroupEnded(TestGroupStats const& testGroupStats) override;
        void testRunEnded(TestRunStats const& testRunStats) override;

        void skipTest(TestCaseInfo const& testInfo) override;
        bool isMulti() const override;

    };

} // end namespace Catch

  // end catch_reporter_multi.h
namespace Catch {

    ReporterConfig::ReporterConfig(IConfigPtr const& _fullConfig)
        : m_stream(&_fullConfig->stream()), m_fullConfig(_fullConfig) {}

    ReporterConfig::ReporterConfig(IConfigPtr const& _fullConfig, std::ostream& _stream)
        : m_stream(&_stream), m_fullConfig(_fullConfig) {}

    std::ostream& ReporterConfig::stream() const { return *m_stream; }
    IConfigPtr ReporterConfig::fullConfig() const { return m_fullConfig; }

    TestRunInfo::TestRunInfo(std::string const& _name) : name(_name) {}

    GroupInfo::GroupInfo(std::string const& _name,
                         std::size_t _groupIndex,
                         std::size_t _groupsCount)
        : name(_name),
        groupIndex(_groupIndex),
        groupsCounts(_groupsCount) {
    }

    AssertionStats::AssertionStats(AssertionResult const& _assertionResult,
                                   std::vector<MessageInfo> const& _infoMessages,
                                   Totals const& _totals)
        : assertionResult(_assertionResult),
        infoMessages(_infoMessages),
        totals(_totals) {
        assertionResult.m_resultData.lazyExpression.m_transientExpression = _assertionResult.m_resultData.lazyExpression.m_transientExpression;

        if (assertionResult.hasMessage()) {
            // Copy message into messages list.
            // !TBD This should have been done earlier, somewhere
            MessageBuilder builder(assertionResult.getTestMacroName(), assertionResult.getSourceInfo(), assertionResult.getResultType());
            builder << assertionResult.getMessage();
            builder.m_info.message = builder.m_stream.str();

            infoMessages.push_back(builder.m_info);
        }
    }

    AssertionStats::~AssertionStats() = default;

    SectionStats::SectionStats(SectionInfo const& _sectionInfo,
                               Counts const& _assertions,
                               double _durationInSeconds,
                               bool _missingAssertions)
        : sectionInfo(_sectionInfo),
        assertions(_assertions),
        durationInSeconds(_durationInSeconds),
        missingAssertions(_missingAssertions) {
    }

    SectionStats::~SectionStats() = default;

    TestCaseStats::TestCaseStats(TestCaseInfo const& _testInfo,
                                 Totals const& _totals,
                                 std::string const& _stdOut,
                                 std::string const& _stdErr,
                                 bool _aborting)
        : testInfo(_testInfo),
        totals(_totals),
        stdOut(_stdOut),
        stdErr(_stdErr),
        aborting(_aborting) {
    }

    TestCaseStats::~TestCaseStats() = default;

    TestGroupStats::TestGroupStats(GroupInfo const& _groupInfo,
                                   Totals const& _totals,
                                   bool _aborting)
        : groupInfo(_groupInfo),
        totals(_totals),
        aborting(_aborting) {
    }

    TestGroupStats::TestGroupStats(GroupInfo const& _groupInfo)
        : groupInfo(_groupInfo),
        aborting(false) {
    }

    TestGroupStats::~TestGroupStats() = default;

    TestRunStats::TestRunStats(TestRunInfo const& _runInfo,
                               Totals const& _totals,
                               bool _aborting)
        : runInfo(_runInfo),
        totals(_totals),
        aborting(_aborting) {
    }

    TestRunStats::~TestRunStats() = default;

    void IStreamingReporter::fatalErrorEncountered(StringRef) {}
    bool IStreamingReporter::isMulti() const { return false; }

    IReporterFactory::~IReporterFactory() = default;
    IReporterRegistry::~IReporterRegistry() = default;

    void addReporter(IStreamingReporterPtr& existingReporter, IStreamingReporterPtr&& additionalReporter) {

        if (!existingReporter) {
            existingReporter = std::move(additionalReporter);
            return;
        }

        MultipleReporters* multi = nullptr;

        if (existingReporter->isMulti()) {
            multi = static_cast<MultipleReporters*>(existingReporter.get());
        } else {
            auto newMulti = std::unique_ptr<MultipleReporters>(new MultipleReporters);
            newMulti->add(std::move(existingReporter));
            multi = newMulti.get();
            existingReporter = std::move(newMulti);
        }
        multi->add(std::move(additionalReporter));
    }

} // end namespace Catch
  // end catch_interfaces_reporter.cpp
  // start catch_interfaces_runner.cpp

namespace Catch {
    IRunner::~IRunner() = default;
}
// end catch_interfaces_runner.cpp
// start catch_interfaces_testcase.cpp

namespace Catch {
    ITestInvoker::~ITestInvoker() = default;
    ITestCaseRegistry::~ITestCaseRegistry() = default;
}
// end catch_interfaces_testcase.cpp
// start catch_leak_detector.cpp

namespace Catch {

#ifdef CATCH_CONFIG_WINDOWS_CRTDBG
#include <crtdbg.h>

    LeakDetector::LeakDetector() {
        int flag = _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG);
        flag |= _CRTDBG_LEAK_CHECK_DF;
        flag |= _CRTDBG_ALLOC_MEM_DF;
        _CrtSetDbgFlag(flag);
        _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG);
        _CrtSetReportFile(_CRT_WARN, _CRTDBG_FILE_STDERR);
        // Change this to leaking allocation's number to break there
        _CrtSetBreakAlloc(-1);
    }

#else

    LeakDetector::LeakDetector() {}

#endif

}
// end catch_leak_detector.cpp
// start catch_list.cpp

// start catch_list.h

#include <set>

namespace Catch {

    std::size_t listTests(Config const& config);

    std::size_t listTestsNamesOnly(Config const& config);

    struct TagInfo {
        void add(std::string const& spelling);
        std::string all() const;

        std::set<std::string> spellings;
        std::size_t count = 0;
    };

    std::size_t listTags(Config const& config);

    std::size_t listReporters(Config const& /*config*/);

    Option<std::size_t> list(Config const& config);

} // end namespace Catch

  // end catch_list.h
  // start catch_text.h

namespace Catch {
    using namespace clara::TextFlow;
}

// end catch_text.h
#include <limits>
#include <algorithm>
#include <iomanip>

namespace Catch {

    std::size_t listTests(Config const& config) {
        TestSpec testSpec = config.testSpec();
        if (config.testSpec().hasFilters())
            Catch::cout() << "Matching test cases:\n";
        else {
            Catch::cout() << "All available test cases:\n";
            testSpec = TestSpecParser(ITagAliasRegistry::get()).parse("*").testSpec();
        }

        auto matchedTestCases = filterTests(getAllTestCasesSorted(config), testSpec, config);
        for (auto const& testCaseInfo : matchedTestCases) {
            Colour::Code colour = testCaseInfo.isHidden()
                ? Colour::SecondaryText
                : Colour::None;
            Colour colourGuard(colour);

            Catch::cout() << Column(testCaseInfo.name).initialIndent(2).indent(4) << "\n";
            if (config.verbosity() >= Verbosity::High) {
                Catch::cout() << Column(Catch::Detail::stringify(testCaseInfo.lineInfo)).indent(4) << std::endl;
                std::string description = testCaseInfo.description;
                if (description.empty())
                    description = "(NO DESCRIPTION)";
                Catch::cout() << Column(description).indent(4) << std::endl;
            }
            if (!testCaseInfo.tags.empty())
                Catch::cout() << Column(testCaseInfo.tagsAsString()).indent(6) << "\n";
        }

        if (!config.testSpec().hasFilters())
            Catch::cout() << pluralise(matchedTestCases.size(), "test case") << '\n' << std::endl;
        else
            Catch::cout() << pluralise(matchedTestCases.size(), "matching test case") << '\n' << std::endl;
        return matchedTestCases.size();
    }

    std::size_t listTestsNamesOnly(Config const& config) {
        TestSpec testSpec = config.testSpec();
        if (!config.testSpec().hasFilters())
            testSpec = TestSpecParser(ITagAliasRegistry::get()).parse("*").testSpec();
        std::size_t matchedTests = 0;
        std::vector<TestCase> matchedTestCases = filterTests(getAllTestCasesSorted(config), testSpec, config);
        for (auto const& testCaseInfo : matchedTestCases) {
            matchedTests++;
            if (startsWith(testCaseInfo.name, '#'))
                Catch::cout() << '"' << testCaseInfo.name << '"';
            else
                Catch::cout() << testCaseInfo.name;
            if (config.verbosity() >= Verbosity::High)
                Catch::cout() << "\t@" << testCaseInfo.lineInfo;
            Catch::cout() << std::endl;
        }
        return matchedTests;
    }

    void TagInfo::add(std::string const& spelling) {
        ++count;
        spellings.insert(spelling);
    }

    std::string TagInfo::all() const {
        std::string out;
        for (auto const& spelling : spellings)
            out += "[" + spelling + "]";
        return out;
    }

    std::size_t listTags(Config const& config) {
        TestSpec testSpec = config.testSpec();
        if (config.testSpec().hasFilters())
            Catch::cout() << "Tags for matching test cases:\n";
        else {
            Catch::cout() << "All available tags:\n";
            testSpec = TestSpecParser(ITagAliasRegistry::get()).parse("*").testSpec();
        }

        std::map<std::string, TagInfo> tagCounts;

        std::vector<TestCase> matchedTestCases = filterTests(getAllTestCasesSorted(config), testSpec, config);
        for (auto const& testCase : matchedTestCases) {
            for (auto const& tagName : testCase.getTestCaseInfo().tags) {
                std::string lcaseTagName = toLower(tagName);
                auto countIt = tagCounts.find(lcaseTagName);
                if (countIt == tagCounts.end())
                    countIt = tagCounts.insert(std::make_pair(lcaseTagName, TagInfo())).first;
                countIt->second.add(tagName);
            }
        }

        for (auto const& tagCount : tagCounts) {
            std::ostringstream oss;
            oss << "  " << std::setw(2) << tagCount.second.count << "  ";
            auto wrapper = Column(tagCount.second.all())
                .initialIndent(0)
                .indent(oss.str().size())
                .width(CATCH_CONFIG_CONSOLE_WIDTH - 10);
            Catch::cout() << oss.str() << wrapper << '\n';
        }
        Catch::cout() << pluralise(tagCounts.size(), "tag") << '\n' << std::endl;
        return tagCounts.size();
    }

    std::size_t listReporters(Config const& /*config*/) {
        Catch::cout() << "Available reporters:\n";
        IReporterRegistry::FactoryMap const& factories = getRegistryHub().getReporterRegistry().getFactories();
        std::size_t maxNameLen = 0;
        for (auto const& factoryKvp : factories)
            maxNameLen = (std::max)(maxNameLen, factoryKvp.first.size());

        for (auto const& factoryKvp : factories) {
            Catch::cout()
                << Column(factoryKvp.first + ":")
                .indent(2)
                .width(5 + maxNameLen)
                + Column(factoryKvp.second->getDescription())
                .initialIndent(0)
                .indent(2)
                .width(CATCH_CONFIG_CONSOLE_WIDTH - maxNameLen - 8)
                << "\n";
        }
        Catch::cout() << std::endl;
        return factories.size();
    }

    Option<std::size_t> list(Config const& config) {
        Option<std::size_t> listedCount;
        if (config.listTests())
            listedCount = listedCount.valueOr(0) + listTests(config);
        if (config.listTestNamesOnly())
            listedCount = listedCount.valueOr(0) + listTestsNamesOnly(config);
        if (config.listTags())
            listedCount = listedCount.valueOr(0) + listTags(config);
        if (config.listReporters())
            listedCount = listedCount.valueOr(0) + listReporters(config);
        return listedCount;
    }

} // end namespace Catch
  // end catch_list.cpp
  // start catch_matchers.cpp

namespace Catch {
    namespace Matchers {
        namespace Impl {

            std::string MatcherUntypedBase::toString() const {
                if (m_cachedToString.empty())
                    m_cachedToString = describe();
                return m_cachedToString;
            }

            MatcherUntypedBase::~MatcherUntypedBase() = default;

        } // namespace Impl
    } // namespace Matchers

    using namespace Matchers;
    using Matchers::Impl::MatcherBase;

} // namespace Catch
  // end catch_matchers.cpp
  // start catch_matchers_string.cpp

namespace Catch {
    namespace Matchers {

        namespace StdString {

            CasedString::CasedString(std::string const& str, CaseSensitive::Choice caseSensitivity)
                : m_caseSensitivity(caseSensitivity),
                m_str(adjustString(str)) {
            }
            std::string CasedString::adjustString(std::string const& str) const {
                return m_caseSensitivity == CaseSensitive::No
                    ? toLower(str)
                    : str;
            }
            std::string CasedString::caseSensitivitySuffix() const {
                return m_caseSensitivity == CaseSensitive::No
                    ? " (case insensitive)"
                    : std::string();
            }

            StringMatcherBase::StringMatcherBase(std::string const& operation, CasedString const& comparator)
                : m_comparator(comparator),
                m_operation(operation) {
            }

            std::string StringMatcherBase::describe() const {
                std::string description;
                description.reserve(5 + m_operation.size() + m_comparator.m_str.size() +
                                    m_comparator.caseSensitivitySuffix().size());
                description += m_operation;
                description += ": \"";
                description += m_comparator.m_str;
                description += "\"";
                description += m_comparator.caseSensitivitySuffix();
                return description;
            }

            EqualsMatcher::EqualsMatcher(CasedString const& comparator) : StringMatcherBase("equals", comparator) {}

            bool EqualsMatcher::match(std::string const& source) const {
                return m_comparator.adjustString(source) == m_comparator.m_str;
            }

            ContainsMatcher::ContainsMatcher(CasedString const& comparator) : StringMatcherBase("contains", comparator) {}

            bool ContainsMatcher::match(std::string const& source) const {
                return contains(m_comparator.adjustString(source), m_comparator.m_str);
            }

            StartsWithMatcher::StartsWithMatcher(CasedString const& comparator) : StringMatcherBase("starts with", comparator) {}

            bool StartsWithMatcher::match(std::string const& source) const {
                return startsWith(m_comparator.adjustString(source), m_comparator.m_str);
            }

            EndsWithMatcher::EndsWithMatcher(CasedString const& comparator) : StringMatcherBase("ends with", comparator) {}

            bool EndsWithMatcher::match(std::string const& source) const {
                return endsWith(m_comparator.adjustString(source), m_comparator.m_str);
            }

        } // namespace StdString

        StdString::EqualsMatcher Equals(std::string const& str, CaseSensitive::Choice caseSensitivity) {
            return StdString::EqualsMatcher(StdString::CasedString(str, caseSensitivity));
        }
        StdString::ContainsMatcher Contains(std::string const& str, CaseSensitive::Choice caseSensitivity) {
            return StdString::ContainsMatcher(StdString::CasedString(str, caseSensitivity));
        }
        StdString::EndsWithMatcher EndsWith(std::string const& str, CaseSensitive::Choice caseSensitivity) {
            return StdString::EndsWithMatcher(StdString::CasedString(str, caseSensitivity));
        }
        StdString::StartsWithMatcher StartsWith(std::string const& str, CaseSensitive::Choice caseSensitivity) {
            return StdString::StartsWithMatcher(StdString::CasedString(str, caseSensitivity));
        }

    } // namespace Matchers
} // namespace Catch
  // end catch_matchers_string.cpp
  // start catch_message.cpp

namespace Catch {

    MessageInfo::MessageInfo(std::string const& _macroName,
                             SourceLineInfo const& _lineInfo,
                             ResultWas::OfType _type)
        : macroName(_macroName),
        lineInfo(_lineInfo),
        type(_type),
        sequence(++globalCount) {
    }

    bool MessageInfo::operator==(MessageInfo const& other) const {
        return sequence == other.sequence;
    }

    bool MessageInfo::operator<(MessageInfo const& other) const {
        return sequence < other.sequence;
    }

    // This may need protecting if threading support is added
    unsigned int MessageInfo::globalCount = 0;

    ////////////////////////////////////////////////////////////////////////////

    Catch::MessageBuilder::MessageBuilder(std::string const& macroName,
                                          SourceLineInfo const& lineInfo,
                                          ResultWas::OfType type)
        :m_info(macroName, lineInfo, type) {
    }

    ////////////////////////////////////////////////////////////////////////////

    ScopedMessage::ScopedMessage(MessageBuilder const& builder)
        : m_info(builder.m_info) {
        m_info.message = builder.m_stream.str();
        getResultCapture().pushScopedMessage(m_info);
    }

    ScopedMessage::~ScopedMessage() {
        if (!std::uncaught_exception()) {
            getResultCapture().popScopedMessage(m_info);
        }
    }

} // end namespace Catch
  // end catch_message.cpp
  // start catch_random_number_generator.cpp

  // start catch_random_number_generator.h

#include <algorithm>

namespace Catch {

    struct IConfig;

    void seedRng(IConfig const& config);

    unsigned int rngSeed();

    struct RandomNumberGenerator {
        using result_type = unsigned int;

        static constexpr result_type(min)() { return 0; }
        static constexpr result_type(max)() { return 1000000; }

        result_type operator()(result_type n) const;
        result_type operator()() const;

        template<typename V>
        static void shuffle(V& vector) {
            RandomNumberGenerator rng;
            std::shuffle(vector.begin(), vector.end(), rng);
        }
    };

}

// end catch_random_number_generator.h
#include <cstdlib>

namespace Catch {

    void seedRng(IConfig const& config) {
        if (config.rngSeed() != 0)
            std::srand(config.rngSeed());
    }
    unsigned int rngSeed() {
        return getCurrentContext().getConfig()->rngSeed();
    }

    RandomNumberGenerator::result_type RandomNumberGenerator::operator()(result_type n) const {
        return std::rand() % n;
    }
    RandomNumberGenerator::result_type RandomNumberGenerator::operator()() const {
        return std::rand() % (max)();
    }

}
// end catch_random_number_generator.cpp
// start catch_registry_hub.cpp

// start catch_test_case_registry_impl.h

#include <vector>
#include <set>
#include <algorithm>
#include <ios>

namespace Catch {

    class TestCase;
    struct IConfig;

    std::vector<TestCase> sortTests(IConfig const& config, std::vector<TestCase> const& unsortedTestCases);
    bool matchTest(TestCase const& testCase, TestSpec const& testSpec, IConfig const& config);

    void enforceNoDuplicateTestCases(std::vector<TestCase> const& functions);

    std::vector<TestCase> filterTests(std::vector<TestCase> const& testCases, TestSpec const& testSpec, IConfig const& config);
    std::vector<TestCase> const& getAllTestCasesSorted(IConfig const& config);

    class TestRegistry : public ITestCaseRegistry {
    public:
        virtual ~TestRegistry() = default;

        virtual void registerTest(TestCase const& testCase);

        std::vector<TestCase> const& getAllTests() const override;
        std::vector<TestCase> const& getAllTestsSorted(IConfig const& config) const override;

    private:
        std::vector<TestCase> m_functions;
        mutable RunTests::InWhatOrder m_currentSortOrder = RunTests::InDeclarationOrder;
        mutable std::vector<TestCase> m_sortedFunctions;
        std::size_t m_unnamedCount = 0;
        std::ios_base::Init m_ostreamInit; // Forces cout/ cerr to be initialised
    };

    ///////////////////////////////////////////////////////////////////////////

    class TestInvokerAsFunction : public ITestInvoker {
        void(*m_testAsFunction)();
    public:
        TestInvokerAsFunction(void(*testAsFunction)()) noexcept;

        void invoke() const override;
    };

    std::string extractClassName(std::string const& classOrQualifiedMethodName);

    ///////////////////////////////////////////////////////////////////////////

} // end namespace Catch

  // end catch_test_case_registry_impl.h
  // start catch_reporter_registry.h

#include <map>

namespace Catch {

    class ReporterRegistry : public IReporterRegistry {

    public:

        ~ReporterRegistry() override;

        IStreamingReporterPtr create(std::string const& name, IConfigPtr const& config) const override;

        void registerReporter(std::string const& name, IReporterFactoryPtr const& factory);
        void registerListener(IReporterFactoryPtr const& factory);

        FactoryMap const& getFactories() const override;
        Listeners const& getListeners() const override;

    private:
        FactoryMap m_factories;
        Listeners m_listeners;
    };
}

// end catch_reporter_registry.h
// start catch_tag_alias_registry.h

// start catch_tag_alias.h

#include <string>

namespace Catch {

    struct TagAlias {
        TagAlias(std::string const& _tag, SourceLineInfo _lineInfo);

        std::string tag;
        SourceLineInfo lineInfo;
    };

} // end namespace Catch

  // end catch_tag_alias.h
#include <map>

namespace Catch {

    class TagAliasRegistry : public ITagAliasRegistry {
    public:
        ~TagAliasRegistry() override;
        TagAlias const* find(std::string const& alias) const override;
        std::string expandAliases(std::string const& unexpandedTestSpec) const override;
        void add(std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo);

    private:
        std::map<std::string, TagAlias> m_registry;
    };

} // end namespace Catch

  // end catch_tag_alias_registry.h
  // start catch_startup_exception_registry.h

#include <vector>
#include <exception>

namespace Catch {

    class StartupExceptionRegistry {
    public:
        void add(std::exception_ptr const& exception) noexcept;
        std::vector<std::exception_ptr> const& getExceptions() const noexcept;
    private:
        std::vector<std::exception_ptr> m_exceptions;
    };

} // end namespace Catch

  // end catch_startup_exception_registry.h
namespace Catch {

    namespace {

        class RegistryHub : public IRegistryHub, public IMutableRegistryHub,
            private NonCopyable {

        public: // IRegistryHub
            RegistryHub() = default;
            IReporterRegistry const& getReporterRegistry() const override {
                return m_reporterRegistry;
            }
            ITestCaseRegistry const& getTestCaseRegistry() const override {
                return m_testCaseRegistry;
            }
            IExceptionTranslatorRegistry& getExceptionTranslatorRegistry() override {
                return m_exceptionTranslatorRegistry;
            }
            ITagAliasRegistry const& getTagAliasRegistry() const override {
                return m_tagAliasRegistry;
            }
            StartupExceptionRegistry const& getStartupExceptionRegistry() const override {
                return m_exceptionRegistry;
            }

        public: // IMutableRegistryHub
            void registerReporter(std::string const& name, IReporterFactoryPtr const& factory) override {
                m_reporterRegistry.registerReporter(name, factory);
            }
            void registerListener(IReporterFactoryPtr const& factory) override {
                m_reporterRegistry.registerListener(factory);
            }
            void registerTest(TestCase const& testInfo) override {
                m_testCaseRegistry.registerTest(testInfo);
            }
            void registerTranslator(const IExceptionTranslator* translator) override {
                m_exceptionTranslatorRegistry.registerTranslator(translator);
            }
            void registerTagAlias(std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo) override {
                m_tagAliasRegistry.add(alias, tag, lineInfo);
            }
            void registerStartupException() noexcept override {
                m_exceptionRegistry.add(std::current_exception());
            }

        private:
            TestRegistry m_testCaseRegistry;
            ReporterRegistry m_reporterRegistry;
            ExceptionTranslatorRegistry m_exceptionTranslatorRegistry;
            TagAliasRegistry m_tagAliasRegistry;
            StartupExceptionRegistry m_exceptionRegistry;
        };

        // Single, global, instance
        RegistryHub*& getTheRegistryHub() {
            static RegistryHub* theRegistryHub = nullptr;
            if (!theRegistryHub)
                theRegistryHub = new RegistryHub();
            return theRegistryHub;
        }
    }

    IRegistryHub& getRegistryHub() {
        return *getTheRegistryHub();
    }
    IMutableRegistryHub& getMutableRegistryHub() {
        return *getTheRegistryHub();
    }
    void cleanUp() {
        delete getTheRegistryHub();
        getTheRegistryHub() = nullptr;
        cleanUpContext();
    }
    std::string translateActiveException() {
        return getRegistryHub().getExceptionTranslatorRegistry().translateActiveException();
    }

} // end namespace Catch
  // end catch_registry_hub.cpp
  // start catch_reporter_registry.cpp

namespace Catch {

    ReporterRegistry::~ReporterRegistry() = default;

    IStreamingReporterPtr ReporterRegistry::create(std::string const& name, IConfigPtr const& config) const {
        auto it = m_factories.find(name);
        if (it == m_factories.end())
            return nullptr;
        return it->second->create(ReporterConfig(config));
    }

    void ReporterRegistry::registerReporter(std::string const& name, IReporterFactoryPtr const& factory) {
        m_factories.emplace(name, factory);
    }
    void ReporterRegistry::registerListener(IReporterFactoryPtr const& factory) {
        m_listeners.push_back(factory);
    }

    IReporterRegistry::FactoryMap const& ReporterRegistry::getFactories() const {
        return m_factories;
    }
    IReporterRegistry::Listeners const& ReporterRegistry::getListeners() const {
        return m_listeners;
    }

}
// end catch_reporter_registry.cpp
// start catch_result_type.cpp

namespace Catch {

    bool isOk(ResultWas::OfType resultType) {
        return (resultType & ResultWas::FailureBit) == 0;
    }
    bool isJustInfo(int flags) {
        return flags == ResultWas::Info;
    }

    ResultDisposition::Flags operator | (ResultDisposition::Flags lhs, ResultDisposition::Flags rhs) {
        return static_cast<ResultDisposition::Flags>(static_cast<int>(lhs) | static_cast<int>(rhs));
    }

    bool shouldContinueOnFailure(int flags) { return (flags & ResultDisposition::ContinueOnFailure) != 0; }
    bool isFalseTest(int flags) { return (flags & ResultDisposition::FalseTest) != 0; }
    bool shouldSuppressFailure(int flags) { return (flags & ResultDisposition::SuppressFail) != 0; }

} // end namespace Catch
  // end catch_result_type.cpp
  // start catch_run_context.cpp
  // start catch_run_context.h

#include <string>

namespace Catch {

    struct IMutableContext;

    class StreamRedirect {

    public:
        StreamRedirect(std::ostream& stream, std::string& targetString);

        ~StreamRedirect();

    private:
        std::ostream& m_stream;
        std::streambuf* m_prevBuf;
        std::ostringstream m_oss;
        std::string& m_targetString;
    };

    // StdErr has two constituent streams in C++, std::cerr and std::clog
    // This means that we need to redirect 2 streams into 1 to keep proper
    // order of writes and cannot use StreamRedirect on its own
    class StdErrRedirect {
    public:
        StdErrRedirect(std::string& targetString);
        ~StdErrRedirect();
    private:
        std::streambuf* m_cerrBuf;
        std::streambuf* m_clogBuf;
        std::ostringstream m_oss;
        std::string& m_targetString;
    };

    ///////////////////////////////////////////////////////////////////////////

    class RunContext : public IResultCapture, public IRunner {

    public:
        RunContext(RunContext const&) = delete;
        RunContext& operator =(RunContext const&) = delete;

        explicit RunContext(IConfigPtr const& _config, IStreamingReporterPtr&& reporter);

        virtual ~RunContext();

        void testGroupStarting(std::string const& testSpec, std::size_t groupIndex, std::size_t groupsCount);
        void testGroupEnded(std::string const& testSpec, Totals const& totals, std::size_t groupIndex, std::size_t groupsCount);

        Totals runTest(TestCase const& testCase);

        IConfigPtr config() const;
        IStreamingReporter& reporter() const;

    private: // IResultCapture

        void assertionStarting(AssertionInfo const& info) override;
        void assertionEnded(AssertionResult const& result) override;

        bool sectionStarted(SectionInfo const& sectionInfo, Counts& assertions) override;
        bool testForMissingAssertions(Counts& assertions);

        void sectionEnded(SectionEndInfo const& endInfo) override;
        void sectionEndedEarly(SectionEndInfo const& endInfo) override;

        void benchmarkStarting(BenchmarkInfo const& info) override;
        void benchmarkEnded(BenchmarkStats const& stats) override;

        void pushScopedMessage(MessageInfo const& message) override;
        void popScopedMessage(MessageInfo const& message) override;

        std::string getCurrentTestName() const override;

        const AssertionResult* getLastResult() const override;

        void exceptionEarlyReported() override;

        void handleFatalErrorCondition(StringRef message) override;

        bool lastAssertionPassed() override;

        void assertionPassed() override;

        void assertionRun() override;

    public:
        // !TBD We need to do this another way!
        bool aborting() const override;

    private:

        void runCurrentTest(std::string& redirectedCout, std::string& redirectedCerr);
        void invokeActiveTestCase();

    private:

        void handleUnfinishedSections();

        TestRunInfo m_runInfo;
        IMutableContext& m_context;
        TestCase const* m_activeTestCase = nullptr;
        ITracker* m_testCaseTracker;
        Option<AssertionResult> m_lastResult;

        IConfigPtr m_config;
        Totals m_totals;
        IStreamingReporterPtr m_reporter;
        std::vector<MessageInfo> m_messages;
        AssertionInfo m_lastAssertionInfo;
        std::vector<SectionEndInfo> m_unfinishedSections;
        std::vector<ITracker*> m_activeSections;
        TrackerContext m_trackerContext;
        std::size_t m_prevPassed = 0;
        bool m_shouldReportUnexpected = true;
    };

    IResultCapture& getResultCapture();

} // end namespace Catch

  // end catch_run_context.h

#include <cassert>
#include <algorithm>

namespace Catch {

    StreamRedirect::StreamRedirect(std::ostream& stream, std::string& targetString)
        : m_stream(stream),
        m_prevBuf(stream.rdbuf()),
        m_targetString(targetString) {
        stream.rdbuf(m_oss.rdbuf());
    }

    StreamRedirect::~StreamRedirect() {
        m_targetString += m_oss.str();
        m_stream.rdbuf(m_prevBuf);
    }

    StdErrRedirect::StdErrRedirect(std::string & targetString)
        :m_cerrBuf(cerr().rdbuf()), m_clogBuf(clog().rdbuf()),
        m_targetString(targetString) {
        cerr().rdbuf(m_oss.rdbuf());
        clog().rdbuf(m_oss.rdbuf());
    }

    StdErrRedirect::~StdErrRedirect() {
        m_targetString += m_oss.str();
        cerr().rdbuf(m_cerrBuf);
        clog().rdbuf(m_clogBuf);
    }

    RunContext::RunContext(IConfigPtr const& _config, IStreamingReporterPtr&& reporter)
        : m_runInfo(_config->name()),
        m_context(getCurrentMutableContext()),
        m_config(_config),
        m_reporter(std::move(reporter)),
        m_lastAssertionInfo{ "", SourceLineInfo("",0), "", ResultDisposition::Normal } {
        m_context.setRunner(this);
        m_context.setConfig(m_config);
        m_context.setResultCapture(this);
        m_reporter->testRunStarting(m_runInfo);
    }

    RunContext::~RunContext() {
        m_reporter->testRunEnded(TestRunStats(m_runInfo, m_totals, aborting()));
    }

    void RunContext::testGroupStarting(std::string const& testSpec, std::size_t groupIndex, std::size_t groupsCount) {
        m_reporter->testGroupStarting(GroupInfo(testSpec, groupIndex, groupsCount));
    }

    void RunContext::testGroupEnded(std::string const& testSpec, Totals const& totals, std::size_t groupIndex, std::size_t groupsCount) {
        m_reporter->testGroupEnded(TestGroupStats(GroupInfo(testSpec, groupIndex, groupsCount), totals, aborting()));
    }

    Totals RunContext::runTest(TestCase const& testCase) {
        Totals prevTotals = m_totals;

        std::string redirectedCout;
        std::string redirectedCerr;

        TestCaseInfo testInfo = testCase.getTestCaseInfo();

        m_reporter->testCaseStarting(testInfo);

        m_activeTestCase = &testCase;

        ITracker& rootTracker = m_trackerContext.startRun();
        assert(rootTracker.isSectionTracker());
        static_cast<SectionTracker&>(rootTracker).addInitialFilters(m_config->getSectionsToRun());
        do {
            m_trackerContext.startCycle();
            m_testCaseTracker = &SectionTracker::acquire(m_trackerContext, TestCaseTracking::NameAndLocation(testInfo.name, testInfo.lineInfo));
            runCurrentTest(redirectedCout, redirectedCerr);
        } while (!m_testCaseTracker->isSuccessfullyCompleted() && !aborting());

        Totals deltaTotals = m_totals.delta(prevTotals);
        if (testInfo.expectedToFail() && deltaTotals.testCases.passed > 0) {
            deltaTotals.assertions.failed++;
            deltaTotals.testCases.passed--;
            deltaTotals.testCases.failed++;
        }
        m_totals.testCases += deltaTotals.testCases;
        m_reporter->testCaseEnded(TestCaseStats(testInfo,
                                                deltaTotals,
                                                redirectedCout,
                                                redirectedCerr,
                                                aborting()));

        m_activeTestCase = nullptr;
        m_testCaseTracker = nullptr;

        return deltaTotals;
    }

    IConfigPtr RunContext::config() const {
        return m_config;
    }

    IStreamingReporter& RunContext::reporter() const {
        return *m_reporter;
    }

    void RunContext::assertionStarting(AssertionInfo const& info) {
        m_reporter->assertionStarting(info);
    }
    void RunContext::assertionEnded(AssertionResult const & result) {
        if (result.getResultType() == ResultWas::Ok) {
            m_totals.assertions.passed++;
        } else if (!result.isOk()) {
            if (m_activeTestCase->getTestCaseInfo().okToFail())
                m_totals.assertions.failedButOk++;
            else
                m_totals.assertions.failed++;
        }

        // We have no use for the return value (whether messages should be cleared), because messages were made scoped
        // and should be let to clear themselves out.
        static_cast<void>(m_reporter->assertionEnded(AssertionStats(result, m_messages, m_totals)));

        // Reset working state
        m_lastAssertionInfo = { "", m_lastAssertionInfo.lineInfo, "{Unknown expression after the reported line}", m_lastAssertionInfo.resultDisposition };
        m_lastResult = result;
    }

    bool RunContext::sectionStarted(SectionInfo const & sectionInfo, Counts & assertions) {
        ITracker& sectionTracker = SectionTracker::acquire(m_trackerContext, TestCaseTracking::NameAndLocation(sectionInfo.name, sectionInfo.lineInfo));
        if (!sectionTracker.isOpen())
            return false;
        m_activeSections.push_back(&sectionTracker);

        m_lastAssertionInfo.lineInfo = sectionInfo.lineInfo;

        m_reporter->sectionStarting(sectionInfo);

        assertions = m_totals.assertions;

        return true;
    }

    bool RunContext::testForMissingAssertions(Counts& assertions) {
        if (assertions.total() != 0)
            return false;
        if (!m_config->warnAboutMissingAssertions())
            return false;
        if (m_trackerContext.currentTracker().hasChildren())
            return false;
        m_totals.assertions.failed++;
        assertions.failed++;
        return true;
    }

    void RunContext::sectionEnded(SectionEndInfo const & endInfo) {
        Counts assertions = m_totals.assertions - endInfo.prevAssertions;
        bool missingAssertions = testForMissingAssertions(assertions);

        if (!m_activeSections.empty()) {
            m_activeSections.back()->close();
            m_activeSections.pop_back();
        }

        m_reporter->sectionEnded(SectionStats(endInfo.sectionInfo, assertions, endInfo.durationInSeconds, missingAssertions));
        m_messages.clear();
    }

    void RunContext::sectionEndedEarly(SectionEndInfo const & endInfo) {
        if (m_unfinishedSections.empty())
            m_activeSections.back()->fail();
        else
            m_activeSections.back()->close();
        m_activeSections.pop_back();

        m_unfinishedSections.push_back(endInfo);
    }
    void RunContext::benchmarkStarting(BenchmarkInfo const& info) {
        m_reporter->benchmarkStarting(info);
    }
    void RunContext::benchmarkEnded(BenchmarkStats const& stats) {
        m_reporter->benchmarkEnded(stats);
    }

    void RunContext::pushScopedMessage(MessageInfo const & message) {
        m_messages.push_back(message);
    }

    void RunContext::popScopedMessage(MessageInfo const & message) {
        m_messages.erase(std::remove(m_messages.begin(), m_messages.end(), message), m_messages.end());
    }

    std::string RunContext::getCurrentTestName() const {
        return m_activeTestCase
            ? m_activeTestCase->getTestCaseInfo().name
            : std::string();
    }

    const AssertionResult * RunContext::getLastResult() const {
        return &(*m_lastResult);
    }

    void RunContext::exceptionEarlyReported() {
        m_shouldReportUnexpected = false;
    }

    void RunContext::handleFatalErrorCondition(StringRef message) {
        // First notify reporter that bad things happened
        m_reporter->fatalErrorEncountered(message);

        // Don't rebuild the result -- the stringification itself can cause more fatal errors
        // Instead, fake a result data.
        AssertionResultData tempResult(ResultWas::FatalErrorCondition, { false });
        tempResult.message = message;
        AssertionResult result(m_lastAssertionInfo, tempResult);

        getResultCapture().assertionEnded(result);

        handleUnfinishedSections();

        // Recreate section for test case (as we will lose the one that was in scope)
        auto const& testCaseInfo = m_activeTestCase->getTestCaseInfo();
        SectionInfo testCaseSection(testCaseInfo.lineInfo, testCaseInfo.name, testCaseInfo.description);

        Counts assertions;
        assertions.failed = 1;
        SectionStats testCaseSectionStats(testCaseSection, assertions, 0, false);
        m_reporter->sectionEnded(testCaseSectionStats);

        auto const& testInfo = m_activeTestCase->getTestCaseInfo();

        Totals deltaTotals;
        deltaTotals.testCases.failed = 1;
        deltaTotals.assertions.failed = 1;
        m_reporter->testCaseEnded(TestCaseStats(testInfo,
                                                deltaTotals,
                                                std::string(),
                                                std::string(),
                                                false));
        m_totals.testCases.failed++;
        testGroupEnded(std::string(), m_totals, 1, 1);
        m_reporter->testRunEnded(TestRunStats(m_runInfo, m_totals, false));
    }

    bool RunContext::lastAssertionPassed() {
        return m_totals.assertions.passed == (m_prevPassed + 1);
    }

    void RunContext::assertionPassed() {
        ++m_totals.assertions.passed;
        m_lastAssertionInfo.capturedExpression = "{Unknown expression after the reported line}";
        m_lastAssertionInfo.macroName = "";
    }

    void RunContext::assertionRun() {
        m_prevPassed = m_totals.assertions.passed;
    }

    bool RunContext::aborting() const {
        return m_totals.assertions.failed == static_cast<std::size_t>(m_config->abortAfter());
    }

    void RunContext::runCurrentTest(std::string & redirectedCout, std::string & redirectedCerr) {
        auto const& testCaseInfo = m_activeTestCase->getTestCaseInfo();
        SectionInfo testCaseSection(testCaseInfo.lineInfo, testCaseInfo.name, testCaseInfo.description);
        m_reporter->sectionStarting(testCaseSection);
        Counts prevAssertions = m_totals.assertions;
        double duration = 0;
        m_shouldReportUnexpected = true;
        try {
            m_lastAssertionInfo = { "TEST_CASE", testCaseInfo.lineInfo, "", ResultDisposition::Normal };
            seedRng(*m_config);

            Timer timer;
            timer.start();
            if (m_reporter->getPreferences().shouldRedirectStdOut) {
                StreamRedirect coutRedir(cout(), redirectedCout);
                StdErrRedirect errRedir(redirectedCerr);
                invokeActiveTestCase();
            } else {
                invokeActiveTestCase();
            }
            duration = timer.getElapsedSeconds();
        } catch (TestFailureException&) {
            // This just means the test was aborted due to failure
        } catch (...) {
            // Under CATCH_CONFIG_FAST_COMPILE, unexpected exceptions under REQUIRE assertions
            // are reported without translation at the point of origin.
            if (m_shouldReportUnexpected) {
                AssertionHandler
                (m_lastAssertionInfo.macroName,
                 m_lastAssertionInfo.lineInfo,
                 m_lastAssertionInfo.capturedExpression,
                 m_lastAssertionInfo.resultDisposition).useActiveException();
            }
        }
        m_testCaseTracker->close();
        handleUnfinishedSections();
        m_messages.clear();

        Counts assertions = m_totals.assertions - prevAssertions;
        bool missingAssertions = testForMissingAssertions(assertions);
        SectionStats testCaseSectionStats(testCaseSection, assertions, duration, missingAssertions);
        m_reporter->sectionEnded(testCaseSectionStats);
    }

    void RunContext::invokeActiveTestCase() {
        FatalConditionHandler fatalConditionHandler; // Handle signals
        m_activeTestCase->invoke();
        fatalConditionHandler.reset();
    }

    void RunContext::handleUnfinishedSections() {
        // If sections ended prematurely due to an exception we stored their
        // infos here so we can tear them down outside the unwind process.
        for (auto it = m_unfinishedSections.rbegin(),
             itEnd = m_unfinishedSections.rend();
             it != itEnd;
             ++it)
            sectionEnded(*it);
        m_unfinishedSections.clear();
    }

    IResultCapture& getResultCapture() {
        if (auto* capture = getCurrentContext().getResultCapture())
            return *capture;
        else
            CATCH_INTERNAL_ERROR("No result capture instance");
    }
}
// end catch_run_context.cpp
// start catch_section.cpp

namespace Catch {

    Section::Section(SectionInfo const& info)
        : m_info(info),
        m_sectionIncluded(getResultCapture().sectionStarted(m_info, m_assertions)) {
        m_timer.start();
    }

#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable:4996) // std::uncaught_exception is deprecated in C++17
#endif
    Section::~Section() {
        if (m_sectionIncluded) {
            SectionEndInfo endInfo(m_info, m_assertions, m_timer.getElapsedSeconds());
            if (std::uncaught_exception())
                getResultCapture().sectionEndedEarly(endInfo);
            else
                getResultCapture().sectionEnded(endInfo);
        }
    }
#if defined(_MSC_VER)
#pragma warning(pop)
#endif

    // This indicates whether the section should be executed or not
    Section::operator bool() const {
        return m_sectionIncluded;
    }

} // end namespace Catch
  // end catch_section.cpp
  // start catch_section_info.cpp

namespace Catch {

    SectionInfo::SectionInfo
    (SourceLineInfo const& _lineInfo,
     std::string const& _name,
     std::string const& _description)
        : name(_name),
        description(_description),
        lineInfo(_lineInfo) {
    }

    SectionEndInfo::SectionEndInfo(SectionInfo const& _sectionInfo, Counts const& _prevAssertions, double _durationInSeconds)
        : sectionInfo(_sectionInfo), prevAssertions(_prevAssertions), durationInSeconds(_durationInSeconds) {
    }

} // end namespace Catch
  // end catch_section_info.cpp
  // start catch_session.cpp

  // start catch_session.h

#include <memory>

namespace Catch {

    class Session : NonCopyable {
    public:

        Session();
        ~Session() override;

        void showHelp() const;
        void libIdentify();

        int applyCommandLine(int argc, char* argv[]);

        void useConfigData(ConfigData const& configData);

        int run(int argc, char* argv[]);
#if defined(WIN32) && defined(UNICODE)
        int run(int argc, wchar_t* const argv[]);
#endif
        int run();

        clara::Parser const& cli() const;
        void cli(clara::Parser const& newParser);
        ConfigData& configData();
        Config& config();
    private:
        int runInternal();

        clara::Parser m_cli;
        ConfigData m_configData;
        std::shared_ptr<Config> m_config;
        bool m_startupExceptions = false;
    };

} // end namespace Catch

  // end catch_session.h
  // start catch_version.h

#include <iosfwd>

namespace Catch {

    // Versioning information
    struct Version {
        Version(Version const&) = delete;
        Version& operator=(Version const&) = delete;
        Version(unsigned int _majorVersion,
                unsigned int _minorVersion,
                unsigned int _patchNumber,
                char const * const _branchName,
                unsigned int _buildNumber);

        unsigned int const majorVersion;
        unsigned int const minorVersion;
        unsigned int const patchNumber;

        // buildNumber is only used if branchName is not null
        char const * const branchName;
        unsigned int const buildNumber;

        friend std::ostream& operator << (std::ostream& os, Version const& version);
    };

    Version const& libraryVersion();
}

// end catch_version.h
#include <cstdlib>
#include <iomanip>

namespace {
    const int MaxExitCode = 255;
    using Catch::IStreamingReporterPtr;
    using Catch::IConfigPtr;
    using Catch::Config;

    IStreamingReporterPtr createReporter(std::string const& reporterName, IConfigPtr const& config) {
        auto reporter = Catch::getRegistryHub().getReporterRegistry().create(reporterName, config);
        CATCH_ENFORCE(reporter, "No reporter registered with name: '" << reporterName << "'");

        return reporter;
    }

#ifndef CATCH_CONFIG_DEFAULT_REPORTER
#define CATCH_CONFIG_DEFAULT_REPORTER "console"
#endif

    IStreamingReporterPtr makeReporter(std::shared_ptr<Config> const& config) {
        auto const& reporterNames = config->getReporterNames();
        if (reporterNames.empty())
            return createReporter(CATCH_CONFIG_DEFAULT_REPORTER, config);

        IStreamingReporterPtr reporter;
        for (auto const& name : reporterNames)
            addReporter(reporter, createReporter(name, config));
        return reporter;
    }

#undef CATCH_CONFIG_DEFAULT_REPORTER

    void addListeners(IStreamingReporterPtr& reporters, IConfigPtr const& config) {
        auto const& listeners = Catch::getRegistryHub().getReporterRegistry().getListeners();
        for (auto const& listener : listeners)
            addReporter(reporters, listener->create(Catch::ReporterConfig(config)));
    }

    Catch::Totals runTests(std::shared_ptr<Config> const& config) {
        using namespace Catch;
        IStreamingReporterPtr reporter = makeReporter(config);
        addListeners(reporter, config);

        RunContext context(config, std::move(reporter));

        Totals totals;

        context.testGroupStarting(config->name(), 1, 1);

        TestSpec testSpec = config->testSpec();
        if (!testSpec.hasFilters())
            testSpec = TestSpecParser(ITagAliasRegistry::get()).parse("~[.]").testSpec(); // All not hidden tests

        auto const& allTestCases = getAllTestCasesSorted(*config);
        for (auto const& testCase : allTestCases) {
            if (!context.aborting() && matchTest(testCase, testSpec, *config))
                totals += context.runTest(testCase);
            else
                context.reporter().skipTest(testCase);
        }

        context.testGroupEnded(config->name(), totals, 1, 1);
        return totals;
    }

    void applyFilenamesAsTags(Catch::IConfig const& config) {
        using namespace Catch;
        auto& tests = const_cast<std::vector<TestCase>&>(getAllTestCasesSorted(config));
        for (auto& testCase : tests) {
            auto tags = testCase.tags;

            std::string filename = testCase.lineInfo.file;
            auto lastSlash = filename.find_last_of("\\/");
            if (lastSlash != std::string::npos) {
                filename.erase(0, lastSlash);
                filename[0] = '#';
            }

            auto lastDot = filename.find_last_of('.');
            if (lastDot != std::string::npos) {
                filename.erase(lastDot);
            }

            tags.push_back(std::move(filename));
            setTags(testCase, tags);
        }
    }

}

namespace Catch {

    Session::Session() {
        static bool alreadyInstantiated = false;
        if (alreadyInstantiated) {
            try { CATCH_INTERNAL_ERROR("Only one instance of Catch::Session can ever be used"); } catch (...) { getMutableRegistryHub().registerStartupException(); }
        }

        const auto& exceptions = getRegistryHub().getStartupExceptionRegistry().getExceptions();
        if (!exceptions.empty()) {
            m_startupExceptions = true;
            Colour colourGuard(Colour::Red);
            Catch::cerr() << "Errors occured during startup!" << '\n';
            // iterate over all exceptions and notify user
            for (const auto& ex_ptr : exceptions) {
                try {
                    std::rethrow_exception(ex_ptr);
                } catch (std::exception const& ex) {
                    Catch::cerr() << Column(ex.what()).indent(2) << '\n';
                }
            }
        }

        alreadyInstantiated = true;
        m_cli = makeCommandLineParser(m_configData);
    }
    Session::~Session() {
        Catch::cleanUp();
    }

    void Session::showHelp() const {
        Catch::cout()
            << "\nCatch v" << libraryVersion() << "\n"
            << m_cli << std::endl
            << "For more detailed usage please see the project docs\n" << std::endl;
    }
    void Session::libIdentify() {
        Catch::cout()
            << std::left << std::setw(16) << "description: " << "A Catch test executable\n"
            << std::left << std::setw(16) << "category: " << "testframework\n"
            << std::left << std::setw(16) << "framework: " << "Catch Test\n"
            << std::left << std::setw(16) << "version: " << libraryVersion() << std::endl;
    }

    int Session::applyCommandLine(int argc, char* argv[]) {
        if (m_startupExceptions)
            return 1;

        auto result = m_cli.parse(clara::Args(argc, argv));
        if (!result) {
            Catch::cerr()
                << Colour(Colour::Red)
                << "\nError(s) in input:\n"
                << Column(result.errorMessage()).indent(2)
                << "\n\n";
            Catch::cerr() << "Run with -? for usage\n" << std::endl;
            return MaxExitCode;
        }

        if (m_configData.showHelp)
            showHelp();
        if (m_configData.libIdentify)
            libIdentify();
        m_config.reset();
        return 0;
    }

    void Session::useConfigData(ConfigData const& configData) {
        m_configData = configData;
        m_config.reset();
    }

    int Session::run(int argc, char* argv[]) {
        if (m_startupExceptions)
            return 1;
        int returnCode = applyCommandLine(argc, argv);
        if (returnCode == 0)
            returnCode = run();
        return returnCode;
    }

#if defined(WIN32) && defined(UNICODE)
    int Session::run(int argc, wchar_t* const argv[]) {

        char **utf8Argv = new char *[argc];

        for (int i = 0; i < argc; ++i) {
            int bufSize = WideCharToMultiByte(CP_UTF8, 0, argv[i], -1, NULL, 0, NULL, NULL);

            utf8Argv[i] = new char[bufSize];

            WideCharToMultiByte(CP_UTF8, 0, argv[i], -1, utf8Argv[i], bufSize, NULL, NULL);
        }

        int returnCode = run(argc, utf8Argv);

        for (int i = 0; i < argc; ++i)
            delete[] utf8Argv[i];

        delete[] utf8Argv;

        return returnCode;
    }
#endif
    int Session::run() {
        if ((m_configData.waitForKeypress & WaitForKeypress::BeforeStart) != 0) {
            Catch::cout() << "...waiting for enter/ return before starting" << std::endl;
            static_cast<void>(std::getchar());
        }
        int exitCode = runInternal();
        if ((m_configData.waitForKeypress & WaitForKeypress::BeforeExit) != 0) {
            Catch::cout() << "...waiting for enter/ return before exiting, with code: " << exitCode << std::endl;
            static_cast<void>(std::getchar());
        }
        return exitCode;
    }

    clara::Parser const& Session::cli() const {
        return m_cli;
    }
    void Session::cli(clara::Parser const& newParser) {
        m_cli = newParser;
    }
    ConfigData& Session::configData() {
        return m_configData;
    }
    Config& Session::config() {
        if (!m_config)
            m_config = std::make_shared<Config>(m_configData);
        return *m_config;
    }

    int Session::runInternal() {
        if (m_startupExceptions)
            return 1;

        if (m_configData.showHelp || m_configData.libIdentify)
            return 0;

        try {
            config(); // Force config to be constructed

            seedRng(*m_config);

            if (m_configData.filenamesAsTags)
                applyFilenamesAsTags(*m_config);

            // Handle list request
            if (Option<std::size_t> listed = list(config()))
                return static_cast<int>(*listed);

            return (std::min)(MaxExitCode, static_cast<int>(runTests(m_config).assertions.failed));
        } catch (std::exception& ex) {
            Catch::cerr() << ex.what() << std::endl;
            return MaxExitCode;
        }
    }

} // end namespace Catch
  // end catch_session.cpp
  // start catch_startup_exception_registry.cpp

namespace Catch {
    void StartupExceptionRegistry::add(std::exception_ptr const& exception) noexcept {
        try {
            m_exceptions.push_back(exception);
        } catch (...) {
            // If we run out of memory during start-up there's really not a lot more we can do about it
            std::terminate();
        }
    }

    std::vector<std::exception_ptr> const& StartupExceptionRegistry::getExceptions() const noexcept {
        return m_exceptions;
    }

} // end namespace Catch
  // end catch_startup_exception_registry.cpp
  // start catch_stream.cpp

#include <stdexcept>
#include <cstdio>
#include <iostream>

namespace Catch {

    template<typename WriterF, std::size_t bufferSize = 256>
    class StreamBufImpl : public StreamBufBase {
        char data[bufferSize];
        WriterF m_writer;

    public:
        StreamBufImpl() {
            setp(data, data + sizeof(data));
        }

        ~StreamBufImpl() noexcept {
            StreamBufImpl::sync();
        }

    private:
        int overflow(int c) override {
            sync();

            if (c != EOF) {
                if (pbase() == epptr())
                    m_writer(std::string(1, static_cast<char>(c)));
                else
                    sputc(static_cast<char>(c));
            }
            return 0;
        }

        int sync() override {
            if (pbase() != pptr()) {
                m_writer(std::string(pbase(), static_cast<std::string::size_type>(pptr() - pbase())));
                setp(pbase(), epptr());
            }
            return 0;
        }
    };

    ///////////////////////////////////////////////////////////////////////////

    Catch::IStream::~IStream() = default;

    FileStream::FileStream(std::string const& filename) {
        m_ofs.open(filename.c_str());
        CATCH_ENFORCE(!m_ofs.fail(), "Unable to open file: '" << filename << "'");
    }

    std::ostream& FileStream::stream() const {
        return m_ofs;
    }

    struct OutputDebugWriter {

        void operator()(std::string const&str) {
            writeToDebugConsole(str);
        }
    };

    DebugOutStream::DebugOutStream()
        : m_streamBuf(new StreamBufImpl<OutputDebugWriter>()),
        m_os(m_streamBuf.get()) {
    }

    std::ostream& DebugOutStream::stream() const {
        return m_os;
    }

    // Store the streambuf from cout up-front because
    // cout may get redirected when running tests
    CoutStream::CoutStream()
        : m_os(Catch::cout().rdbuf()) {
    }

    std::ostream& CoutStream::stream() const {
        return m_os;
    }

#ifndef CATCH_CONFIG_NOSTDOUT // If you #define this you must implement these functions
    std::ostream& cout() {
        return std::cout;
    }
    std::ostream& cerr() {
        return std::cerr;
    }
    std::ostream& clog() {
        return std::clog;
    }
#endif
}
// end catch_stream.cpp
// start catch_streambuf.cpp

namespace Catch {
    StreamBufBase::~StreamBufBase() = default;
}
// end catch_streambuf.cpp
// start catch_string_manip.cpp

#include <algorithm>
#include <ostream>
#include <cstring>
#include <cctype>

namespace Catch {

    bool startsWith(std::string const& s, std::string const& prefix) {
        return s.size() >= prefix.size() && std::equal(prefix.begin(), prefix.end(), s.begin());
    }
    bool startsWith(std::string const& s, char prefix) {
        return !s.empty() && s[0] == prefix;
    }
    bool endsWith(std::string const& s, std::string const& suffix) {
        return s.size() >= suffix.size() && std::equal(suffix.rbegin(), suffix.rend(), s.rbegin());
    }
    bool endsWith(std::string const& s, char suffix) {
        return !s.empty() && s[s.size() - 1] == suffix;
    }
    bool contains(std::string const& s, std::string const& infix) {
        return s.find(infix) != std::string::npos;
    }
    char toLowerCh(char c) {
        return static_cast<char>(std::tolower(c));
    }
    void toLowerInPlace(std::string& s) {
        std::transform(s.begin(), s.end(), s.begin(), toLowerCh);
    }
    std::string toLower(std::string const& s) {
        std::string lc = s;
        toLowerInPlace(lc);
        return lc;
    }
    std::string trim(std::string const& str) {
        static char const* whitespaceChars = "\n\r\t ";
        std::string::size_type start = str.find_first_not_of(whitespaceChars);
        std::string::size_type end = str.find_last_not_of(whitespaceChars);

        return start != std::string::npos ? str.substr(start, 1 + end - start) : std::string();
    }

    bool replaceInPlace(std::string& str, std::string const& replaceThis, std::string const& withThis) {
        bool replaced = false;
        std::size_t i = str.find(replaceThis);
        while (i != std::string::npos) {
            replaced = true;
            str = str.substr(0, i) + withThis + str.substr(i + replaceThis.size());
            if (i < str.size() - withThis.size())
                i = str.find(replaceThis, i + withThis.size());
            else
                i = std::string::npos;
        }
        return replaced;
    }

    pluralise::pluralise(std::size_t count, std::string const& label)
        : m_count(count),
        m_label(label) {
    }

    std::ostream& operator << (std::ostream& os, pluralise const& pluraliser) {
        os << pluraliser.m_count << ' ' << pluraliser.m_label;
        if (pluraliser.m_count != 1)
            os << 's';
        return os;
    }

}
// end catch_string_manip.cpp
// start catch_stringref.cpp

#if defined(__clang__)
#    pragma clang diagnostic push
#    pragma clang diagnostic ignored "-Wexit-time-destructors"
#endif

#include <ostream>
#include <cassert>
#include <cstring>

namespace Catch {

    auto getEmptyStringRef() -> StringRef {
        static StringRef s_emptyStringRef("");
        return s_emptyStringRef;
    }

    StringRef::StringRef() noexcept
        :   StringRef(getEmptyStringRef()) {
    }

    StringRef::StringRef(StringRef const& other) noexcept
        : m_start(other.m_start),
        m_size(other.m_size) {
    }

    StringRef::StringRef(StringRef&& other) noexcept
        : m_start(other.m_start),
        m_size(other.m_size),
        m_data(other.m_data) {
        other.m_data = nullptr;
    }

    StringRef::StringRef(char const* rawChars) noexcept
        :   m_start(rawChars),
        m_size(static_cast<size_type>(std::strlen(rawChars))) {
        assert(rawChars != nullptr);
    }

    StringRef::StringRef(char const* rawChars, size_type size) noexcept
        : m_start(rawChars),
        m_size(size) {
        size_type rawSize = rawChars == nullptr ? 0 : static_cast<size_type>(std::strlen(rawChars));
        if (rawSize < size)
            m_size = rawSize;
    }

    StringRef::StringRef(std::string const& stdString) noexcept
        :   m_start(stdString.c_str()),
        m_size(stdString.size()) {
    }

    StringRef::~StringRef() noexcept {
        delete[] m_data;
    }

    auto StringRef::operator = (StringRef other) noexcept -> StringRef& {
        swap(other);
        return *this;
    }
    StringRef::operator std::string() const {
        return std::string(m_start, m_size);
    }

    void StringRef::swap(StringRef& other) noexcept {
        std::swap(m_start, other.m_start);
        std::swap(m_size, other.m_size);
        std::swap(m_data, other.m_data);
    }

    auto StringRef::c_str() const -> char const* {
        if (isSubstring())
            const_cast<StringRef*>(this)->takeOwnership();
        return m_start;
    }
    auto StringRef::data() const noexcept -> char const* {
        return m_start;
    }

    auto StringRef::isOwned() const noexcept -> bool {
        return m_data != nullptr;
    }
    auto StringRef::isSubstring() const noexcept -> bool {
        return m_start[m_size] != '\0';
    }

    void StringRef::takeOwnership() {
        if (!isOwned()) {
            m_data = new char[m_size + 1];
            memcpy(m_data, m_start, m_size);
            m_data[m_size] = '\0';
            m_start = m_data;
        }
    }
    auto StringRef::substr(size_type start, size_type size) const noexcept -> StringRef {
        if (start < m_size)
            return StringRef(m_start + start, size);
        else
            return StringRef();
    }
    auto StringRef::operator == (StringRef const& other) const noexcept -> bool {
        return
            size() == other.size() &&
            (std::strncmp(m_start, other.m_start, size()) == 0);
    }
    auto StringRef::operator != (StringRef const& other) const noexcept -> bool {
        return !operator==(other);
    }

    auto StringRef::operator[](size_type index) const noexcept -> char {
        return m_start[index];
    }

    auto StringRef::empty() const noexcept -> bool {
        return m_size == 0;
    }

    auto StringRef::size() const noexcept -> size_type {
        return m_size;
    }
    auto StringRef::numberOfCharacters() const noexcept -> size_type {
        size_type noChars = m_size;
        // Make adjustments for uft encodings
        for (size_type i = 0; i < m_size; ++i) {
            char c = m_start[i];
            if ((c & 0b11000000) == 0b11000000) {
                if ((c & 0b11100000) == 0b11000000)
                    noChars--;
                else if ((c & 0b11110000) == 0b11100000)
                    noChars -= 2;
                else if ((c & 0b11111000) == 0b11110000)
                    noChars -= 3;
            }
        }
        return noChars;
    }

    auto operator + (StringRef const& lhs, StringRef const& rhs) -> std::string {
        std::string str;
        str.reserve(lhs.size() + rhs.size());
        str += lhs;
        str += rhs;
        return str;
    }
    auto operator + (StringRef const& lhs, const char* rhs) -> std::string {
        return std::string(lhs) + std::string(rhs);
    }
    auto operator + (char const* lhs, StringRef const& rhs) -> std::string {
        return std::string(lhs) + std::string(rhs);
    }

    auto operator << (std::ostream& os, StringRef const& str) -> std::ostream& {
        return os << str.c_str();
    }

} // namespace Catch

#if defined(__clang__)
#    pragma clang diagnostic pop
#endif
  // end catch_stringref.cpp
  // start catch_tag_alias.cpp

namespace Catch {
    TagAlias::TagAlias(std::string const & _tag, SourceLineInfo _lineInfo) : tag(_tag), lineInfo(_lineInfo) {}
}
// end catch_tag_alias.cpp
// start catch_tag_alias_autoregistrar.cpp

namespace Catch {

    RegistrarForTagAliases::RegistrarForTagAliases(char const* alias, char const* tag, SourceLineInfo const& lineInfo) {
        try {
            getMutableRegistryHub().registerTagAlias(alias, tag, lineInfo);
        } catch (...) {
            // Do not throw when constructing global objects, instead register the exception to be processed later
            getMutableRegistryHub().registerStartupException();
        }
    }

}
// end catch_tag_alias_autoregistrar.cpp
// start catch_tag_alias_registry.cpp

namespace Catch {

    TagAliasRegistry::~TagAliasRegistry() {}

    TagAlias const* TagAliasRegistry::find(std::string const& alias) const {
        auto it = m_registry.find(alias);
        if (it != m_registry.end())
            return &(it->second);
        else
            return nullptr;
    }

    std::string TagAliasRegistry::expandAliases(std::string const& unexpandedTestSpec) const {
        std::string expandedTestSpec = unexpandedTestSpec;
        for (auto const& registryKvp : m_registry) {
            std::size_t pos = expandedTestSpec.find(registryKvp.first);
            if (pos != std::string::npos) {
                expandedTestSpec = expandedTestSpec.substr(0, pos) +
                    registryKvp.second.tag +
                    expandedTestSpec.substr(pos + registryKvp.first.size());
            }
        }
        return expandedTestSpec;
    }

    void TagAliasRegistry::add(std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo) {
        CATCH_ENFORCE(startsWith(alias, "[@") && endsWith(alias, ']'),
                      "error: tag alias, '" << alias << "' is not of the form [@alias name].\n" << lineInfo);

        CATCH_ENFORCE(m_registry.insert(std::make_pair(alias, TagAlias(tag, lineInfo))).second,
                      "error: tag alias, '" << alias << "' already registered.\n"
                      << "\tFirst seen at: " << find(alias)->lineInfo << "\n"
                      << "\tRedefined at: " << lineInfo);
    }

    ITagAliasRegistry::~ITagAliasRegistry() {}

    ITagAliasRegistry const& ITagAliasRegistry::get() {
        return getRegistryHub().getTagAliasRegistry();
    }

} // end namespace Catch
  // end catch_tag_alias_registry.cpp
  // start catch_test_case_info.cpp

#include <cctype>
#include <exception>
#include <algorithm>

namespace Catch {

    TestCaseInfo::SpecialProperties parseSpecialTag(std::string const& tag) {
        if (startsWith(tag, '.') ||
            tag == "!hide")
            return TestCaseInfo::IsHidden;
        else if (tag == "!throws")
            return TestCaseInfo::Throws;
        else if (tag == "!shouldfail")
            return TestCaseInfo::ShouldFail;
        else if (tag == "!mayfail")
            return TestCaseInfo::MayFail;
        else if (tag == "!nonportable")
            return TestCaseInfo::NonPortable;
        else if (tag == "!benchmark")
            return static_cast<TestCaseInfo::SpecialProperties>(TestCaseInfo::Benchmark | TestCaseInfo::IsHidden);
        else
            return TestCaseInfo::None;
    }
    bool isReservedTag(std::string const& tag) {
        return parseSpecialTag(tag) == TestCaseInfo::None && tag.size() > 0 && !std::isalnum(tag[0]);
    }
    void enforceNotReservedTag(std::string const& tag, SourceLineInfo const& _lineInfo) {
        CATCH_ENFORCE(!isReservedTag(tag),
                      "Tag name: [" << tag << "] is not allowed.\n"
                      << "Tag names starting with non alpha-numeric characters are reserved\n"
                      << _lineInfo);
    }

    TestCase makeTestCase(ITestInvoker* _testCase,
                          std::string const& _className,
                          std::string const& _name,
                          std::string const& _descOrTags,
                          SourceLineInfo const& _lineInfo) {
        bool isHidden = false;

        // Parse out tags
        std::vector<std::string> tags;
        std::string desc, tag;
        bool inTag = false;
        for (char c : _descOrTags) {
            if (!inTag) {
                if (c == '[')
                    inTag = true;
                else
                    desc += c;
            } else {
                if (c == ']') {
                    TestCaseInfo::SpecialProperties prop = parseSpecialTag(tag);
                    if ((prop & TestCaseInfo::IsHidden) != 0)
                        isHidden = true;
                    else if (prop == TestCaseInfo::None)
                        enforceNotReservedTag(tag, _lineInfo);

                    tags.push_back(tag);
                    tag.clear();
                    inTag = false;
                } else
                    tag += c;
            }
        }
        if (isHidden) {
            tags.push_back(".");
        }

        TestCaseInfo info(_name, _className, desc, tags, _lineInfo);
        return TestCase(_testCase, info);
    }

    void setTags(TestCaseInfo& testCaseInfo, std::vector<std::string> tags) {
        std::sort(begin(tags), end(tags));
        tags.erase(std::unique(begin(tags), end(tags)), end(tags));
        testCaseInfo.lcaseTags.clear();

        for (auto const& tag : tags) {
            std::string lcaseTag = toLower(tag);
            testCaseInfo.properties = static_cast<TestCaseInfo::SpecialProperties>(testCaseInfo.properties | parseSpecialTag(lcaseTag));
            testCaseInfo.lcaseTags.push_back(lcaseTag);
        }
        testCaseInfo.tags = std::move(tags);
    }

    TestCaseInfo::TestCaseInfo(std::string const& _name,
                               std::string const& _className,
                               std::string const& _description,
                               std::vector<std::string> const& _tags,
                               SourceLineInfo const& _lineInfo)
        : name(_name),
        className(_className),
        description(_description),
        lineInfo(_lineInfo),
        properties(None) {
        setTags(*this, _tags);
    }

    bool TestCaseInfo::isHidden() const {
        return (properties & IsHidden) != 0;
    }
    bool TestCaseInfo::throws() const {
        return (properties & Throws) != 0;
    }
    bool TestCaseInfo::okToFail() const {
        return (properties & (ShouldFail | MayFail)) != 0;
    }
    bool TestCaseInfo::expectedToFail() const {
        return (properties & (ShouldFail)) != 0;
    }

    std::string TestCaseInfo::tagsAsString() const {
        std::string ret;
        // '[' and ']' per tag
        std::size_t full_size = 2 * tags.size();
        for (const auto& tag : tags) {
            full_size += tag.size();
        }
        ret.reserve(full_size);
        for (const auto& tag : tags) {
            ret.push_back('[');
            ret.append(tag);
            ret.push_back(']');
        }

        return ret;
    }

    TestCase::TestCase(ITestInvoker* testCase, TestCaseInfo const& info) : TestCaseInfo(info), test(testCase) {}

    TestCase TestCase::withName(std::string const& _newName) const {
        TestCase other(*this);
        other.name = _newName;
        return other;
    }

    void TestCase::invoke() const {
        test->invoke();
    }

    bool TestCase::operator == (TestCase const& other) const {
        return  test.get() == other.test.get() &&
            name == other.name &&
            className == other.className;
    }

    bool TestCase::operator < (TestCase const& other) const {
        return name < other.name;
    }

    TestCaseInfo const& TestCase::getTestCaseInfo() const {
        return *this;
    }

} // end namespace Catch
  // end catch_test_case_info.cpp
  // start catch_test_case_registry_impl.cpp

#include <sstream>

namespace Catch {

    std::vector<TestCase> sortTests(IConfig const& config, std::vector<TestCase> const& unsortedTestCases) {

        std::vector<TestCase> sorted = unsortedTestCases;

        switch (config.runOrder()) {
            case RunTests::InLexicographicalOrder:
                std::sort(sorted.begin(), sorted.end());
                break;
            case RunTests::InRandomOrder:
                seedRng(config);
                RandomNumberGenerator::shuffle(sorted);
                break;
            case RunTests::InDeclarationOrder:
                // already in declaration order
                break;
        }
        return sorted;
    }
    bool matchTest(TestCase const& testCase, TestSpec const& testSpec, IConfig const& config) {
        return testSpec.matches(testCase) && (config.allowThrows() || !testCase.throws());
    }

    void enforceNoDuplicateTestCases(std::vector<TestCase> const& functions) {
        std::set<TestCase> seenFunctions;
        for (auto const& function : functions) {
            auto prev = seenFunctions.insert(function);
            CATCH_ENFORCE(prev.second,
                          "error: TEST_CASE( \"" << function.name << "\" ) already defined.\n"
                          << "\tFirst seen at " << prev.first->getTestCaseInfo().lineInfo << "\n"
                          << "\tRedefined at " << function.getTestCaseInfo().lineInfo);
        }
    }

    std::vector<TestCase> filterTests(std::vector<TestCase> const& testCases, TestSpec const& testSpec, IConfig const& config) {
        std::vector<TestCase> filtered;
        filtered.reserve(testCases.size());
        for (auto const& testCase : testCases)
            if (matchTest(testCase, testSpec, config))
                filtered.push_back(testCase);
        return filtered;
    }
    std::vector<TestCase> const& getAllTestCasesSorted(IConfig const& config) {
        return getRegistryHub().getTestCaseRegistry().getAllTestsSorted(config);
    }

    void TestRegistry::registerTest(TestCase const& testCase) {
        std::string name = testCase.getTestCaseInfo().name;
        if (name.empty()) {
            std::ostringstream oss;
            oss << "Anonymous test case " << ++m_unnamedCount;
            return registerTest(testCase.withName(oss.str()));
        }
        m_functions.push_back(testCase);
    }

    std::vector<TestCase> const& TestRegistry::getAllTests() const {
        return m_functions;
    }
    std::vector<TestCase> const& TestRegistry::getAllTestsSorted(IConfig const& config) const {
        if (m_sortedFunctions.empty())
            enforceNoDuplicateTestCases(m_functions);

        if (m_currentSortOrder != config.runOrder() || m_sortedFunctions.empty()) {
            m_sortedFunctions = sortTests(config, m_functions);
            m_currentSortOrder = config.runOrder();
        }
        return m_sortedFunctions;
    }

    ///////////////////////////////////////////////////////////////////////////
    TestInvokerAsFunction::TestInvokerAsFunction(void(*testAsFunction)()) noexcept : m_testAsFunction(testAsFunction) {}

    void TestInvokerAsFunction::invoke() const {
        m_testAsFunction();
    }

    std::string extractClassName(std::string const& classOrQualifiedMethodName) {
        std::string className = classOrQualifiedMethodName;
        if (startsWith(className, '&')) {
            std::size_t lastColons = className.rfind("::");
            std::size_t penultimateColons = className.rfind("::", lastColons - 1);
            if (penultimateColons == std::string::npos)
                penultimateColons = 1;
            className = className.substr(penultimateColons, lastColons - penultimateColons);
        }
        return className;
    }

} // end namespace Catch
  // end catch_test_case_registry_impl.cpp
  // start catch_test_case_tracker.cpp

#include <algorithm>
#include <assert.h>
#include <stdexcept>
#include <memory>

#if defined(__clang__)
#    pragma clang diagnostic push
#    pragma clang diagnostic ignored "-Wexit-time-destructors"
#endif

namespace Catch {
    namespace TestCaseTracking {

        NameAndLocation::NameAndLocation(std::string const& _name, SourceLineInfo const& _location)
            : name(_name),
            location(_location) {
        }

        ITracker::~ITracker() = default;

        TrackerContext& TrackerContext::instance() {
            static TrackerContext s_instance;
            return s_instance;
        }

        ITracker& TrackerContext::startRun() {
            m_rootTracker = std::make_shared<SectionTracker>(NameAndLocation("{root}", CATCH_INTERNAL_LINEINFO), *this, nullptr);
            m_currentTracker = nullptr;
            m_runState = Executing;
            return *m_rootTracker;
        }

        void TrackerContext::endRun() {
            m_rootTracker.reset();
            m_currentTracker = nullptr;
            m_runState = NotStarted;
        }

        void TrackerContext::startCycle() {
            m_currentTracker = m_rootTracker.get();
            m_runState = Executing;
        }
        void TrackerContext::completeCycle() {
            m_runState = CompletedCycle;
        }

        bool TrackerContext::completedCycle() const {
            return m_runState == CompletedCycle;
        }
        ITracker& TrackerContext::currentTracker() {
            return *m_currentTracker;
        }
        void TrackerContext::setCurrentTracker(ITracker* tracker) {
            m_currentTracker = tracker;
        }

        TrackerBase::TrackerHasName::TrackerHasName(NameAndLocation const& nameAndLocation) : m_nameAndLocation(nameAndLocation) {}
        bool TrackerBase::TrackerHasName::operator ()(ITrackerPtr const& tracker) const {
            return
                tracker->nameAndLocation().name == m_nameAndLocation.name &&
                tracker->nameAndLocation().location == m_nameAndLocation.location;
        }

        TrackerBase::TrackerBase(NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent)
            : m_nameAndLocation(nameAndLocation),
            m_ctx(ctx),
            m_parent(parent) {
        }

        NameAndLocation const& TrackerBase::nameAndLocation() const {
            return m_nameAndLocation;
        }
        bool TrackerBase::isComplete() const {
            return m_runState == CompletedSuccessfully || m_runState == Failed;
        }
        bool TrackerBase::isSuccessfullyCompleted() const {
            return m_runState == CompletedSuccessfully;
        }
        bool TrackerBase::isOpen() const {
            return m_runState != NotStarted && !isComplete();
        }
        bool TrackerBase::hasChildren() const {
            return !m_children.empty();
        }

        void TrackerBase::addChild(ITrackerPtr const& child) {
            m_children.push_back(child);
        }

        ITrackerPtr TrackerBase::findChild(NameAndLocation const& nameAndLocation) {
            auto it = std::find_if(m_children.begin(), m_children.end(), TrackerHasName(nameAndLocation));
            return(it != m_children.end())
                ? *it
                : nullptr;
        }
        ITracker& TrackerBase::parent() {
            assert(m_parent); // Should always be non-null except for root
            return *m_parent;
        }

        void TrackerBase::openChild() {
            if (m_runState != ExecutingChildren) {
                m_runState = ExecutingChildren;
                if (m_parent)
                    m_parent->openChild();
            }
        }

        bool TrackerBase::isSectionTracker() const { return false; }
        bool TrackerBase::isIndexTracker() const { return false; }

        void TrackerBase::open() {
            m_runState = Executing;
            moveToThis();
            if (m_parent)
                m_parent->openChild();
        }

        void TrackerBase::close() {

            // Close any still open children (e.g. generators)
            while (&m_ctx.currentTracker() != this)
                m_ctx.currentTracker().close();

            switch (m_runState) {
                case NeedsAnotherRun:
                    break;

                case Executing:
                    m_runState = CompletedSuccessfully;
                    break;
                case ExecutingChildren:
                    if (m_children.empty() || m_children.back()->isComplete())
                        m_runState = CompletedSuccessfully;
                    break;

                case NotStarted:
                case CompletedSuccessfully:
                case Failed:
                    CATCH_INTERNAL_ERROR("Illogical state: " << m_runState);

                default:
                    CATCH_INTERNAL_ERROR("Unknown state: " << m_runState);
            }
            moveToParent();
            m_ctx.completeCycle();
        }
        void TrackerBase::fail() {
            m_runState = Failed;
            if (m_parent)
                m_parent->markAsNeedingAnotherRun();
            moveToParent();
            m_ctx.completeCycle();
        }
        void TrackerBase::markAsNeedingAnotherRun() {
            m_runState = NeedsAnotherRun;
        }

        void TrackerBase::moveToParent() {
            assert(m_parent);
            m_ctx.setCurrentTracker(m_parent);
        }
        void TrackerBase::moveToThis() {
            m_ctx.setCurrentTracker(this);
        }

        SectionTracker::SectionTracker(NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent)
            : TrackerBase(nameAndLocation, ctx, parent) {
            if (parent) {
                while (!parent->isSectionTracker())
                    parent = &parent->parent();

                SectionTracker& parentSection = static_cast<SectionTracker&>(*parent);
                addNextFilters(parentSection.m_filters);
            }
        }

        bool SectionTracker::isSectionTracker() const { return true; }

        SectionTracker& SectionTracker::acquire(TrackerContext& ctx, NameAndLocation const& nameAndLocation) {
            std::shared_ptr<SectionTracker> section;

            ITracker& currentTracker = ctx.currentTracker();
            if (ITrackerPtr childTracker = currentTracker.findChild(nameAndLocation)) {
                assert(childTracker);
                assert(childTracker->isSectionTracker());
                section = std::static_pointer_cast<SectionTracker>(childTracker);
            } else {
                section = std::make_shared<SectionTracker>(nameAndLocation, ctx, &currentTracker);
                currentTracker.addChild(section);
            }
            if (!ctx.completedCycle())
                section->tryOpen();
            return *section;
        }

        void SectionTracker::tryOpen() {
            if (!isComplete() && (m_filters.empty() || m_filters[0].empty() || m_filters[0] == m_nameAndLocation.name))
                open();
        }

        void SectionTracker::addInitialFilters(std::vector<std::string> const& filters) {
            if (!filters.empty()) {
                m_filters.push_back(""); // Root - should never be consulted
                m_filters.push_back(""); // Test Case - not a section filter
                m_filters.insert(m_filters.end(), filters.begin(), filters.end());
            }
        }
        void SectionTracker::addNextFilters(std::vector<std::string> const& filters) {
            if (filters.size() > 1)
                m_filters.insert(m_filters.end(), ++filters.begin(), filters.end());
        }

        IndexTracker::IndexTracker(NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent, int size)
            : TrackerBase(nameAndLocation, ctx, parent),
            m_size(size) {
        }

        bool IndexTracker::isIndexTracker() const { return true; }

        IndexTracker& IndexTracker::acquire(TrackerContext& ctx, NameAndLocation const& nameAndLocation, int size) {
            std::shared_ptr<IndexTracker> tracker;

            ITracker& currentTracker = ctx.currentTracker();
            if (ITrackerPtr childTracker = currentTracker.findChild(nameAndLocation)) {
                assert(childTracker);
                assert(childTracker->isIndexTracker());
                tracker = std::static_pointer_cast<IndexTracker>(childTracker);
            } else {
                tracker = std::make_shared<IndexTracker>(nameAndLocation, ctx, &currentTracker, size);
                currentTracker.addChild(tracker);
            }

            if (!ctx.completedCycle() && !tracker->isComplete()) {
                if (tracker->m_runState != ExecutingChildren && tracker->m_runState != NeedsAnotherRun)
                    tracker->moveNext();
                tracker->open();
            }

            return *tracker;
        }

        int IndexTracker::index() const { return m_index; }

        void IndexTracker::moveNext() {
            m_index++;
            m_children.clear();
        }

        void IndexTracker::close() {
            TrackerBase::close();
            if (m_runState == CompletedSuccessfully && m_index < m_size - 1)
                m_runState = Executing;
        }

    } // namespace TestCaseTracking

    using TestCaseTracking::ITracker;
    using TestCaseTracking::TrackerContext;
    using TestCaseTracking::SectionTracker;
    using TestCaseTracking::IndexTracker;

} // namespace Catch

#if defined(__clang__)
#    pragma clang diagnostic pop
#endif
  // end catch_test_case_tracker.cpp
  // start catch_test_registry.cpp

namespace Catch {

    auto makeTestInvoker(void(*testAsFunction)()) noexcept -> ITestInvoker* {
        return new(std::nothrow) TestInvokerAsFunction(testAsFunction);
    }

    NameAndTags::NameAndTags(StringRef name_, StringRef tags_) noexcept : name(name_), tags(tags_) {}

    AutoReg::AutoReg(ITestInvoker* invoker, SourceLineInfo const& lineInfo, StringRef classOrMethod, NameAndTags const& nameAndTags) noexcept {
        try {
            getMutableRegistryHub()
                .registerTest(
                    makeTestCase(
                        invoker,
                        extractClassName(classOrMethod),
                        nameAndTags.name,
                        nameAndTags.tags,
                        lineInfo));
        } catch (...) {
            // Do not throw when constructing global objects, instead register the exception to be processed later
            getMutableRegistryHub().registerStartupException();
        }
    }

    AutoReg::~AutoReg() = default;
}
// end catch_test_registry.cpp
// start catch_test_spec.cpp

#include <algorithm>
#include <string>
#include <vector>
#include <memory>

namespace Catch {

    TestSpec::Pattern::~Pattern() = default;
    TestSpec::NamePattern::~NamePattern() = default;
    TestSpec::TagPattern::~TagPattern() = default;
    TestSpec::ExcludedPattern::~ExcludedPattern() = default;

    TestSpec::NamePattern::NamePattern(std::string const& name)
        : m_wildcardPattern(toLower(name), CaseSensitive::No) {
    }
    bool TestSpec::NamePattern::matches(TestCaseInfo const& testCase) const {
        return m_wildcardPattern.matches(toLower(testCase.name));
    }

    TestSpec::TagPattern::TagPattern(std::string const& tag) : m_tag(toLower(tag)) {}
    bool TestSpec::TagPattern::matches(TestCaseInfo const& testCase) const {
        return std::find(begin(testCase.lcaseTags),
                         end(testCase.lcaseTags),
                         m_tag) != end(testCase.lcaseTags);
    }

    TestSpec::ExcludedPattern::ExcludedPattern(PatternPtr const& underlyingPattern) : m_underlyingPattern(underlyingPattern) {}
    bool TestSpec::ExcludedPattern::matches(TestCaseInfo const& testCase) const { return !m_underlyingPattern->matches(testCase); }

    bool TestSpec::Filter::matches(TestCaseInfo const& testCase) const {
        // All patterns in a filter must match for the filter to be a match
        for (auto const& pattern : m_patterns) {
            if (!pattern->matches(testCase))
                return false;
        }
        return true;
    }

    bool TestSpec::hasFilters() const {
        return !m_filters.empty();
    }
    bool TestSpec::matches(TestCaseInfo const& testCase) const {
        // A TestSpec matches if any filter matches
        for (auto const& filter : m_filters)
            if (filter.matches(testCase))
                return true;
        return false;
    }
}
// end catch_test_spec.cpp
// start catch_test_spec_parser.cpp

namespace Catch {

    TestSpecParser::TestSpecParser(ITagAliasRegistry const& tagAliases) : m_tagAliases(&tagAliases) {}

    TestSpecParser& TestSpecParser::parse(std::string const& arg) {
        m_mode = None;
        m_exclusion = false;
        m_start = std::string::npos;
        m_arg = m_tagAliases->expandAliases(arg);
        m_escapeChars.clear();
        for (m_pos = 0; m_pos < m_arg.size(); ++m_pos)
            visitChar(m_arg[m_pos]);
        if (m_mode == Name)
            addPattern<TestSpec::NamePattern>();
        return *this;
    }
    TestSpec TestSpecParser::testSpec() {
        addFilter();
        return m_testSpec;
    }

    void TestSpecParser::visitChar(char c) {
        if (m_mode == None) {
            switch (c) {
                case ' ': return;
                case '~': m_exclusion = true; return;
                case '[': return startNewMode(Tag, ++m_pos);
                case '"': return startNewMode(QuotedName, ++m_pos);
                case '\\': return escape();
                default: startNewMode(Name, m_pos); break;
            }
        }
        if (m_mode == Name) {
            if (c == ',') {
                addPattern<TestSpec::NamePattern>();
                addFilter();
            } else if (c == '[') {
                if (subString() == "exclude:")
                    m_exclusion = true;
                else
                    addPattern<TestSpec::NamePattern>();
                startNewMode(Tag, ++m_pos);
            } else if (c == '\\')
                escape();
        } else if (m_mode == EscapedName)
            m_mode = Name;
        else if (m_mode == QuotedName && c == '"')
            addPattern<TestSpec::NamePattern>();
        else if (m_mode == Tag && c == ']')
            addPattern<TestSpec::TagPattern>();
    }
    void TestSpecParser::startNewMode(Mode mode, std::size_t start) {
        m_mode = mode;
        m_start = start;
    }
    void TestSpecParser::escape() {
        if (m_mode == None)
            m_start = m_pos;
        m_mode = EscapedName;
        m_escapeChars.push_back(m_pos);
    }
    std::string TestSpecParser::subString() const { return m_arg.substr(m_start, m_pos - m_start); }

    void TestSpecParser::addFilter() {
        if (!m_currentFilter.m_patterns.empty()) {
            m_testSpec.m_filters.push_back(m_currentFilter);
            m_currentFilter = TestSpec::Filter();
        }
    }

    TestSpec parseTestSpec(std::string const& arg) {
        return TestSpecParser(ITagAliasRegistry::get()).parse(arg).testSpec();
    }

} // namespace Catch
  // end catch_test_spec_parser.cpp
  // start catch_timer.cpp

#include <chrono>

namespace Catch {

    auto getCurrentNanosecondsSinceEpoch() -> uint64_t {
        return std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::high_resolution_clock::now().time_since_epoch()).count();
    }

    auto estimateClockResolution() -> uint64_t {
        uint64_t sum = 0;
        static const uint64_t iterations = 1000000;

        for (std::size_t i = 0; i < iterations; ++i) {

            uint64_t ticks;
            uint64_t baseTicks = getCurrentNanosecondsSinceEpoch();
            do {
                ticks = getCurrentNanosecondsSinceEpoch();
            } while (ticks == baseTicks);

            auto delta = ticks - baseTicks;
            sum += delta;
        }

        // We're just taking the mean, here. To do better we could take the std. dev and exclude outliers
        // - and potentially do more iterations if there's a high variance.
        return sum / iterations;
    }
    auto getEstimatedClockResolution() -> uint64_t {
        static auto s_resolution = estimateClockResolution();
        return s_resolution;
    }

    void Timer::start() {
        m_nanoseconds = getCurrentNanosecondsSinceEpoch();
    }
    auto Timer::getElapsedNanoseconds() const -> unsigned int {
        return static_cast<unsigned int>(getCurrentNanosecondsSinceEpoch() - m_nanoseconds);
    }
    auto Timer::getElapsedMicroseconds() const -> unsigned int {
        return static_cast<unsigned int>(getElapsedNanoseconds() / 1000);
    }
    auto Timer::getElapsedMilliseconds() const -> unsigned int {
        return static_cast<unsigned int>(getElapsedMicroseconds() / 1000);
    }
    auto Timer::getElapsedSeconds() const -> double {
        return getElapsedMicroseconds() / 1000000.0;
    }

} // namespace Catch
  // end catch_timer.cpp
  // start catch_tostring.cpp

#if defined(__clang__)
#    pragma clang diagnostic push
#    pragma clang diagnostic ignored "-Wexit-time-destructors"
#    pragma clang diagnostic ignored "-Wglobal-constructors"
#endif

#include <iomanip>

namespace Catch {

    namespace Detail {

        const std::string unprintableString = "{?}";

        namespace {
            const int hexThreshold = 255;

            struct Endianness {
                enum Arch { Big, Little };

                static Arch which() {
                    union _ {
                        int asInt;
                        char asChar[sizeof(int)];
                    } u;

                    u.asInt = 1;
                    return (u.asChar[sizeof(int) - 1] == 1) ? Big : Little;
                }
            };
        }

        std::string rawMemoryToString(const void *object, std::size_t size) {
            // Reverse order for little endian architectures
            int i = 0, end = static_cast<int>(size), inc = 1;
            if (Endianness::which() == Endianness::Little) {
                i = end - 1;
                end = inc = -1;
            }

            unsigned char const *bytes = static_cast<unsigned char const *>(object);
            std::ostringstream os;
            os << "0x" << std::setfill('0') << std::hex;
            for (; i != end; i += inc)
                os << std::setw(2) << static_cast<unsigned>(bytes[i]);
            return os.str();
        }
    }

    template<typename T>
    std::string fpToString(T value, int precision) {
        std::ostringstream oss;
        oss << std::setprecision(precision)
            << std::fixed
            << value;
        std::string d = oss.str();
        std::size_t i = d.find_last_not_of('0');
        if (i != std::string::npos && i != d.size() - 1) {
            if (d[i] == '.')
                i++;
            d = d.substr(0, i + 1);
        }
        return d;
    }

    //// ======================================================= ////
    //
    //   Out-of-line defs for full specialization of StringMaker
    //
    //// ======================================================= ////

    std::string StringMaker<std::string>::convert(const std::string& str) {
        if (!getCurrentContext().getConfig()->showInvisibles()) {
            return '"' + str + '"';
        }

        std::string s("\"");
        for (char c : str) {
            switch (c) {
                case '\n':
                    s.append("\\n");
                    break;
                case '\t':
                    s.append("\\t");
                    break;
                default:
                    s.push_back(c);
                    break;
            }
        }
        s.append("\"");
        return s;
    }

    std::string StringMaker<std::wstring>::convert(const std::wstring& wstr) {
        std::string s;
        s.reserve(wstr.size());
        for (auto c : wstr) {
            s += (c <= 0xff) ? static_cast<char>(c) : '?';
        }
        return ::Catch::Detail::stringify(s);
    }

    std::string StringMaker<char const*>::convert(char const* str) {
        if (str) {
            return ::Catch::Detail::stringify(std::string{ str });
        } else {
            return{ "{null string}" };
        }
    }
    std::string StringMaker<char*>::convert(char* str) {
        if (str) {
            return ::Catch::Detail::stringify(std::string{ str });
        } else {
            return{ "{null string}" };
        }
    }
    std::string StringMaker<wchar_t const*>::convert(wchar_t const * str) {
        if (str) {
            return ::Catch::Detail::stringify(std::wstring{ str });
        } else {
            return{ "{null string}" };
        }
    }
    std::string StringMaker<wchar_t *>::convert(wchar_t * str) {
        if (str) {
            return ::Catch::Detail::stringify(std::wstring{ str });
        } else {
            return{ "{null string}" };
        }
    }

    std::string StringMaker<int>::convert(int value) {
        return ::Catch::Detail::stringify(static_cast<long long>(value));
    }
    std::string StringMaker<long>::convert(long value) {
        return ::Catch::Detail::stringify(static_cast<long long>(value));
    }
    std::string StringMaker<long long>::convert(long long value) {
        std::ostringstream oss;
        oss << value;
        if (value > Detail::hexThreshold) {
            oss << " (0x" << std::hex << value << ')';
        }
        return oss.str();
    }

    std::string StringMaker<unsigned int>::convert(unsigned int value) {
        return ::Catch::Detail::stringify(static_cast<unsigned long long>(value));
    }
    std::string StringMaker<unsigned long>::convert(unsigned long value) {
        return ::Catch::Detail::stringify(static_cast<unsigned long long>(value));
    }
    std::string StringMaker<unsigned long long>::convert(unsigned long long value) {
        std::ostringstream oss;
        oss << value;
        if (value > Detail::hexThreshold) {
            oss << " (0x" << std::hex << value << ')';
        }
        return oss.str();
    }

    std::string StringMaker<bool>::convert(bool b) {
        return b ? "true" : "false";
    }

    std::string StringMaker<char>::convert(char value) {
        if (value == '\r') {
            return "'\\r'";
        } else if (value == '\f') {
            return "'\\f'";
        } else if (value == '\n') {
            return "'\\n'";
        } else if (value == '\t') {
            return "'\\t'";
        } else if ('\0' <= value && value < ' ') {
            return ::Catch::Detail::stringify(static_cast<unsigned int>(value));
        } else {
            char chstr[] = "' '";
            chstr[1] = value;
            return chstr;
        }
    }
    std::string StringMaker<signed char>::convert(signed char c) {
        return ::Catch::Detail::stringify(static_cast<char>(c));
    }
    std::string StringMaker<unsigned char>::convert(unsigned char c) {
        return ::Catch::Detail::stringify(static_cast<char>(c));
    }

    std::string StringMaker<std::nullptr_t>::convert(std::nullptr_t) {
        return "nullptr";
    }

    std::string StringMaker<float>::convert(float value) {
        return fpToString(value, 5) + 'f';
    }
    std::string StringMaker<double>::convert(double value) {
        return fpToString(value, 10);
    }

} // end namespace Catch

#if defined(__clang__)
#    pragma clang diagnostic pop
#endif

  // end catch_tostring.cpp
  // start catch_totals.cpp

namespace Catch {

    Counts Counts::operator - (Counts const& other) const {
        Counts diff;
        diff.passed = passed - other.passed;
        diff.failed = failed - other.failed;
        diff.failedButOk = failedButOk - other.failedButOk;
        return diff;
    }

    Counts& Counts::operator += (Counts const& other) {
        passed += other.passed;
        failed += other.failed;
        failedButOk += other.failedButOk;
        return *this;
    }

    std::size_t Counts::total() const {
        return passed + failed + failedButOk;
    }
    bool Counts::allPassed() const {
        return failed == 0 && failedButOk == 0;
    }
    bool Counts::allOk() const {
        return failed == 0;
    }

    Totals Totals::operator - (Totals const& other) const {
        Totals diff;
        diff.assertions = assertions - other.assertions;
        diff.testCases = testCases - other.testCases;
        return diff;
    }

    Totals& Totals::operator += (Totals const& other) {
        assertions += other.assertions;
        testCases += other.testCases;
        return *this;
    }

    Totals Totals::delta(Totals const& prevTotals) const {
        Totals diff = *this - prevTotals;
        if (diff.assertions.failed > 0)
            ++diff.testCases.failed;
        else if (diff.assertions.failedButOk > 0)
            ++diff.testCases.failedButOk;
        else
            ++diff.testCases.passed;
        return diff;
    }

}
// end catch_totals.cpp
// start catch_version.cpp

#include <ostream>

namespace Catch {

    Version::Version
    (unsigned int _majorVersion,
     unsigned int _minorVersion,
     unsigned int _patchNumber,
     char const * const _branchName,
     unsigned int _buildNumber)
        : majorVersion(_majorVersion),
        minorVersion(_minorVersion),
        patchNumber(_patchNumber),
        branchName(_branchName),
        buildNumber(_buildNumber) {
    }

    std::ostream& operator << (std::ostream& os, Version const& version) {
        os << version.majorVersion << '.'
            << version.minorVersion << '.'
            << version.patchNumber;
        // branchName is never null -> 0th char is \0 if it is empty
        if (version.branchName[0]) {
            os << '-' << version.branchName
                << '.' << version.buildNumber;
        }
        return os;
    }

    Version const& libraryVersion() {
        static Version version(2, 0, 1, "", 0);
        return version;
    }

}
// end catch_version.cpp
// start catch_wildcard_pattern.cpp

namespace Catch {

    WildcardPattern::WildcardPattern(std::string const& pattern,
                                     CaseSensitive::Choice caseSensitivity)
        : m_caseSensitivity(caseSensitivity),
        m_pattern(adjustCase(pattern)) {
        if (startsWith(m_pattern, '*')) {
            m_pattern = m_pattern.substr(1);
            m_wildcard = WildcardAtStart;
        }
        if (endsWith(m_pattern, '*')) {
            m_pattern = m_pattern.substr(0, m_pattern.size() - 1);
            m_wildcard = static_cast<WildcardPosition>(m_wildcard | WildcardAtEnd);
        }
    }

    bool WildcardPattern::matches(std::string const& str) const {
        switch (m_wildcard) {
            case NoWildcard:
                return m_pattern == adjustCase(str);
            case WildcardAtStart:
                return endsWith(adjustCase(str), m_pattern);
            case WildcardAtEnd:
                return startsWith(adjustCase(str), m_pattern);
            case WildcardAtBothEnds:
                return contains(adjustCase(str), m_pattern);
            default:
                CATCH_INTERNAL_ERROR("Unknown enum");
        }
    }

    std::string WildcardPattern::adjustCase(std::string const& str) const {
        return m_caseSensitivity == CaseSensitive::No ? toLower(str) : str;
    }
}
// end catch_wildcard_pattern.cpp
// start catch_xmlwriter.cpp

// start catch_xmlwriter.h

#include <sstream>
#include <vector>

namespace Catch {

    class XmlEncode {
    public:
        enum ForWhat { ForTextNodes, ForAttributes };

        XmlEncode(std::string const& str, ForWhat forWhat = ForTextNodes);

        void encodeTo(std::ostream& os) const;

        friend std::ostream& operator << (std::ostream& os, XmlEncode const& xmlEncode);

    private:
        std::string m_str;
        ForWhat m_forWhat;
    };

    class XmlWriter {
    public:

        class ScopedElement {
        public:
            ScopedElement(XmlWriter* writer);

            ScopedElement(ScopedElement&& other) noexcept;
            ScopedElement& operator=(ScopedElement&& other) noexcept;

            ~ScopedElement();

            ScopedElement& writeText(std::string const& text, bool indent = true);

            template<typename T>
            ScopedElement& writeAttribute(std::string const& name, T const& attribute) {
                m_writer->writeAttribute(name, attribute);
                return *this;
            }

        private:
            mutable XmlWriter* m_writer = nullptr;
        };

        XmlWriter(std::ostream& os = Catch::cout());
        ~XmlWriter();

        XmlWriter(XmlWriter const&) = delete;
        XmlWriter& operator=(XmlWriter const&) = delete;

        XmlWriter& startElement(std::string const& name);

        ScopedElement scopedElement(std::string const& name);

        XmlWriter& endElement();

        XmlWriter& writeAttribute(std::string const& name, std::string const& attribute);

        XmlWriter& writeAttribute(std::string const& name, bool attribute);

        template<typename T>
        XmlWriter& writeAttribute(std::string const& name, T const& attribute) {
            m_oss.clear();
            m_oss.str(std::string());
            m_oss << attribute;
            return writeAttribute(name, m_oss.str());
        }

        XmlWriter& writeText(std::string const& text, bool indent = true);

        XmlWriter& writeComment(std::string const& text);

        void writeStylesheetRef(std::string const& url);

        XmlWriter& writeBlankLine();

        void ensureTagClosed();

    private:

        void writeDeclaration();

        void newlineIfNecessary();

        bool m_tagIsOpen = false;
        bool m_needsNewline = false;
        std::vector<std::string> m_tags;
        std::string m_indent;
        std::ostream& m_os;
        std::ostringstream m_oss;
    };

}

// end catch_xmlwriter.h
#include <iomanip>

namespace Catch {

    XmlEncode::XmlEncode(std::string const& str, ForWhat forWhat)
        : m_str(str),
        m_forWhat(forWhat) {
    }

    void XmlEncode::encodeTo(std::ostream& os) const {

        // Apostrophe escaping not necessary if we always use " to write attributes
        // (see: http://www.w3.org/TR/xml/#syntax)

        for (std::size_t i = 0; i < m_str.size(); ++i) {
            char c = m_str[i];
            switch (c) {
                case '<':   os << "&lt;"; break;
                case '&':   os << "&amp;"; break;

                case '>':
                    // See: http://www.w3.org/TR/xml/#syntax
                    if (i > 2 && m_str[i - 1] == ']' && m_str[i - 2] == ']')
                        os << "&gt;";
                    else
                        os << c;
                    break;

                case '\"':
                    if (m_forWhat == ForAttributes)
                        os << "&quot;";
                    else
                        os << c;
                    break;

                default:
                    // Escape control chars - based on contribution by @espenalb in PR #465 and
                    // by @mrpi PR #588
                    if ((c >= 0 && c < '\x09') || (c > '\x0D' && c < '\x20') || c == '\x7F') {
                        // see http://stackoverflow.com/questions/404107/why-are-control-characters-illegal-in-xml-1-0
                        os << "\\x" << std::uppercase << std::hex << std::setfill('0') << std::setw(2)
                            << static_cast<int>(c);
                    } else
                        os << c;
            }
        }
    }

    std::ostream& operator << (std::ostream& os, XmlEncode const& xmlEncode) {
        xmlEncode.encodeTo(os);
        return os;
    }

    XmlWriter::ScopedElement::ScopedElement(XmlWriter* writer)
        : m_writer(writer) {
    }

    XmlWriter::ScopedElement::ScopedElement(ScopedElement&& other) noexcept
        : m_writer(other.m_writer) {
        other.m_writer = nullptr;
    }
    XmlWriter::ScopedElement& XmlWriter::ScopedElement::operator=(ScopedElement&& other) noexcept {
        if (m_writer) {
            m_writer->endElement();
        }
        m_writer = other.m_writer;
        other.m_writer = nullptr;
        return *this;
    }

    XmlWriter::ScopedElement::~ScopedElement() {
        if (m_writer)
            m_writer->endElement();
    }

    XmlWriter::ScopedElement& XmlWriter::ScopedElement::writeText(std::string const& text, bool indent) {
        m_writer->writeText(text, indent);
        return *this;
    }

    XmlWriter::XmlWriter(std::ostream& os) : m_os(os) {
        writeDeclaration();
    }

    XmlWriter::~XmlWriter() {
        while (!m_tags.empty())
            endElement();
    }

    XmlWriter& XmlWriter::startElement(std::string const& name) {
        ensureTagClosed();
        newlineIfNecessary();
        m_os << m_indent << '<' << name;
        m_tags.push_back(name);
        m_indent += "  ";
        m_tagIsOpen = true;
        return *this;
    }

    XmlWriter::ScopedElement XmlWriter::scopedElement(std::string const& name) {
        ScopedElement scoped(this);
        startElement(name);
        return scoped;
    }

    XmlWriter& XmlWriter::endElement() {
        newlineIfNecessary();
        m_indent = m_indent.substr(0, m_indent.size() - 2);
        if (m_tagIsOpen) {
            m_os << "/>";
            m_tagIsOpen = false;
        } else {
            m_os << m_indent << "</" << m_tags.back() << ">";
        }
        m_os << std::endl;
        m_tags.pop_back();
        return *this;
    }

    XmlWriter& XmlWriter::writeAttribute(std::string const& name, std::string const& attribute) {
        if (!name.empty() && !attribute.empty())
            m_os << ' ' << name << "=\"" << XmlEncode(attribute, XmlEncode::ForAttributes) << '"';
        return *this;
    }

    XmlWriter& XmlWriter::writeAttribute(std::string const& name, bool attribute) {
        m_os << ' ' << name << "=\"" << (attribute ? "true" : "false") << '"';
        return *this;
    }

    XmlWriter& XmlWriter::writeText(std::string const& text, bool indent) {
        if (!text.empty()) {
            bool tagWasOpen = m_tagIsOpen;
            ensureTagClosed();
            if (tagWasOpen && indent)
                m_os << m_indent;
            m_os << XmlEncode(text);
            m_needsNewline = true;
        }
        return *this;
    }

    XmlWriter& XmlWriter::writeComment(std::string const& text) {
        ensureTagClosed();
        m_os << m_indent << "<!--" << text << "-->";
        m_needsNewline = true;
        return *this;
    }

    void XmlWriter::writeStylesheetRef(std::string const& url) {
        m_os << "<?xml-stylesheet type=\"text/xsl\" href=\"" << url << "\"?>\n";
    }

    XmlWriter& XmlWriter::writeBlankLine() {
        ensureTagClosed();
        m_os << '\n';
        return *this;
    }

    void XmlWriter::ensureTagClosed() {
        if (m_tagIsOpen) {
            m_os << ">" << std::endl;
            m_tagIsOpen = false;
        }
    }

    void XmlWriter::writeDeclaration() {
        m_os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
    }

    void XmlWriter::newlineIfNecessary() {
        if (m_needsNewline) {
            m_os << std::endl;
            m_needsNewline = false;
        }
    }
}
// end catch_xmlwriter.cpp
// start catch_reporter_bases.cpp

#include <cstring>
#include <cfloat>
#include <cstdio>
#include <assert.h>
#include <memory>

namespace Catch {
    void prepareExpandedExpression(AssertionResult& result) {
        result.getExpandedExpression();
    }

    // Because formatting using c++ streams is stateful, drop down to C is required
    // Alternatively we could use stringstream, but its performance is... not good.
    std::string getFormattedDuration(double duration) {
        // Max exponent + 1 is required to represent the whole part
        // + 1 for decimal point
        // + 3 for the 3 decimal places
        // + 1 for null terminator
        const std::size_t maxDoubleSize = DBL_MAX_10_EXP + 1 + 1 + 3 + 1;
        char buffer[maxDoubleSize];

        // Save previous errno, to prevent sprintf from overwriting it
        ErrnoGuard guard;
#ifdef _MSC_VER
        sprintf_s(buffer, "%.3f", duration);
#else
        sprintf(buffer, "%.3f", duration);
#endif
        return std::string(buffer);
    }

    TestEventListenerBase::TestEventListenerBase(ReporterConfig const & _config)
        :StreamingReporterBase(_config) {}

    void TestEventListenerBase::assertionStarting(AssertionInfo const &) {}

    bool TestEventListenerBase::assertionEnded(AssertionStats const &) {
        return false;
    }

} // end namespace Catch
  // end catch_reporter_bases.cpp
  // start catch_reporter_compact.cpp

namespace {

#ifdef CATCH_PLATFORM_MAC
    const char* failedString() { return "FAILED"; }
    const char* passedString() { return "PASSED"; }
#else
    const char* failedString() { return "failed"; }
    const char* passedString() { return "passed"; }
#endif

    // Colour::LightGrey
    Catch::Colour::Code dimColour() { return Catch::Colour::FileName; }

    std::string bothOrAll(std::size_t count) {
        return count == 1 ? std::string() :
            count == 2 ? "both " : "all ";
    }
}

namespace Catch {

    struct CompactReporter : StreamingReporterBase<CompactReporter> {

        using StreamingReporterBase::StreamingReporterBase;

        ~CompactReporter() override;

        static std::string getDescription() {
            return "Reports test results on a single line, suitable for IDEs";
        }

        ReporterPreferences getPreferences() const override {
            ReporterPreferences prefs;
            prefs.shouldRedirectStdOut = false;
            return prefs;
        }

        void noMatchingTestCases(std::string const& spec) override {
            stream << "No test cases matched '" << spec << '\'' << std::endl;
        }

        void assertionStarting(AssertionInfo const&) override {}

        bool assertionEnded(AssertionStats const& _assertionStats) override {
            AssertionResult const& result = _assertionStats.assertionResult;

            bool printInfoMessages = true;

            // Drop out if result was successful and we're not printing those
            if (!m_config->includeSuccessfulResults() && result.isOk()) {
                if (result.getResultType() != ResultWas::Warning)
                    return false;
                printInfoMessages = false;
            }

            AssertionPrinter printer(stream, _assertionStats, printInfoMessages);
            printer.print();

            stream << std::endl;
            return true;
        }

        void sectionEnded(SectionStats const& _sectionStats) override {
            if (m_config->showDurations() == ShowDurations::Always) {
                stream << getFormattedDuration(_sectionStats.durationInSeconds) << " s: " << _sectionStats.sectionInfo.name << std::endl;
            }
        }

        void testRunEnded(TestRunStats const& _testRunStats) override {
            printTotals(_testRunStats.totals);
            stream << '\n' << std::endl;
            StreamingReporterBase::testRunEnded(_testRunStats);
        }

    private:
        class AssertionPrinter {
        public:
            AssertionPrinter& operator= (AssertionPrinter const&) = delete;
            AssertionPrinter(AssertionPrinter const&) = delete;
            AssertionPrinter(std::ostream& _stream, AssertionStats const& _stats, bool _printInfoMessages)
                : stream(_stream)
                , result(_stats.assertionResult)
                , messages(_stats.infoMessages)
                , itMessage(_stats.infoMessages.begin())
                , printInfoMessages(_printInfoMessages) {
            }

            void print() {
                printSourceInfo();

                itMessage = messages.begin();

                switch (result.getResultType()) {
                    case ResultWas::Ok:
                        printResultType(Colour::ResultSuccess, passedString());
                        printOriginalExpression();
                        printReconstructedExpression();
                        if (!result.hasExpression())
                            printRemainingMessages(Colour::None);
                        else
                            printRemainingMessages();
                        break;
                    case ResultWas::ExpressionFailed:
                        if (result.isOk())
                            printResultType(Colour::ResultSuccess, failedString() + std::string(" - but was ok"));
                        else
                            printResultType(Colour::Error, failedString());
                        printOriginalExpression();
                        printReconstructedExpression();
                        printRemainingMessages();
                        break;
                    case ResultWas::ThrewException:
                        printResultType(Colour::Error, failedString());
                        printIssue("unexpected exception with message:");
                        printMessage();
                        printExpressionWas();
                        printRemainingMessages();
                        break;
                    case ResultWas::FatalErrorCondition:
                        printResultType(Colour::Error, failedString());
                        printIssue("fatal error condition with message:");
                        printMessage();
                        printExpressionWas();
                        printRemainingMessages();
                        break;
                    case ResultWas::DidntThrowException:
                        printResultType(Colour::Error, failedString());
                        printIssue("expected exception, got none");
                        printExpressionWas();
                        printRemainingMessages();
                        break;
                    case ResultWas::Info:
                        printResultType(Colour::None, "info");
                        printMessage();
                        printRemainingMessages();
                        break;
                    case ResultWas::Warning:
                        printResultType(Colour::None, "warning");
                        printMessage();
                        printRemainingMessages();
                        break;
                    case ResultWas::ExplicitFailure:
                        printResultType(Colour::Error, failedString());
                        printIssue("explicitly");
                        printRemainingMessages(Colour::None);
                        break;
                        // These cases are here to prevent compiler warnings
                    case ResultWas::Unknown:
                    case ResultWas::FailureBit:
                    case ResultWas::Exception:
                        printResultType(Colour::Error, "** internal error **");
                        break;
                }
            }

        private:
            void printSourceInfo() const {
                Colour colourGuard(Colour::FileName);
                stream << result.getSourceInfo() << ':';
            }

            void printResultType(Colour::Code colour, std::string const& passOrFail) const {
                if (!passOrFail.empty()) {
                    {
                        Colour colourGuard(colour);
                        stream << ' ' << passOrFail;
                    }
                    stream << ':';
                }
            }

            void printIssue(std::string const& issue) const {
                stream << ' ' << issue;
            }

            void printExpressionWas() {
                if (result.hasExpression()) {
                    stream << ';';
                    {
                        Colour colour(dimColour());
                        stream << " expression was:";
                    }
                    printOriginalExpression();
                }
            }

            void printOriginalExpression() const {
                if (result.hasExpression()) {
                    stream << ' ' << result.getExpression();
                }
            }

            void printReconstructedExpression() const {
                if (result.hasExpandedExpression()) {
                    {
                        Colour colour(dimColour());
                        stream << " for: ";
                    }
                    stream << result.getExpandedExpression();
                }
            }

            void printMessage() {
                if (itMessage != messages.end()) {
                    stream << " '" << itMessage->message << '\'';
                    ++itMessage;
                }
            }

            void printRemainingMessages(Colour::Code colour = dimColour()) {
                if (itMessage == messages.end())
                    return;

                // using messages.end() directly yields (or auto) compilation error:
                std::vector<MessageInfo>::const_iterator itEnd = messages.end();
                const std::size_t N = static_cast<std::size_t>(std::distance(itMessage, itEnd));

                {
                    Colour colourGuard(colour);
                    stream << " with " << pluralise(N, "message") << ':';
                }

                for (; itMessage != itEnd; ) {
                    // If this assertion is a warning ignore any INFO messages
                    if (printInfoMessages || itMessage->type != ResultWas::Info) {
                        stream << " '" << itMessage->message << '\'';
                        if (++itMessage != itEnd) {
                            Colour colourGuard(dimColour());
                            stream << " and";
                        }
                    }
                }
            }

        private:
            std::ostream& stream;
            AssertionResult const& result;
            std::vector<MessageInfo> messages;
            std::vector<MessageInfo>::const_iterator itMessage;
            bool printInfoMessages;
        };

        // Colour, message variants:
        // - white: No tests ran.
        // -   red: Failed [both/all] N test cases, failed [both/all] M assertions.
        // - white: Passed [both/all] N test cases (no assertions).
        // -   red: Failed N tests cases, failed M assertions.
        // - green: Passed [both/all] N tests cases with M assertions.

        void printTotals(const Totals& totals) const {
            if (totals.testCases.total() == 0) {
                stream << "No tests ran.";
            } else if (totals.testCases.failed == totals.testCases.total()) {
                Colour colour(Colour::ResultError);
                const std::string qualify_assertions_failed =
                    totals.assertions.failed == totals.assertions.total() ?
                    bothOrAll(totals.assertions.failed) : std::string();
                stream <<
                    "Failed " << bothOrAll(totals.testCases.failed)
                    << pluralise(totals.testCases.failed, "test case") << ", "
                    "failed " << qualify_assertions_failed <<
                    pluralise(totals.assertions.failed, "assertion") << '.';
            } else if (totals.assertions.total() == 0) {
                stream <<
                    "Passed " << bothOrAll(totals.testCases.total())
                    << pluralise(totals.testCases.total(), "test case")
                    << " (no assertions).";
            } else if (totals.assertions.failed) {
                Colour colour(Colour::ResultError);
                stream <<
                    "Failed " << pluralise(totals.testCases.failed, "test case") << ", "
                    "failed " << pluralise(totals.assertions.failed, "assertion") << '.';
            } else {
                Colour colour(Colour::ResultSuccess);
                stream <<
                    "Passed " << bothOrAll(totals.testCases.passed)
                    << pluralise(totals.testCases.passed, "test case") <<
                    " with " << pluralise(totals.assertions.passed, "assertion") << '.';
            }
        }
    };

    CompactReporter::~CompactReporter() {}

    CATCH_REGISTER_REPORTER("compact", CompactReporter)

} // end namespace Catch
  // end catch_reporter_compact.cpp
  // start catch_reporter_console.cpp

#include <cfloat>
#include <cstdio>

#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable:4061) // Not all labels are EXPLICITLY handled in switch
  // Note that 4062 (not all labels are handled
  // and default is missing) is enabled
#endif

namespace Catch {

    namespace {
        std::size_t makeRatio(std::size_t number, std::size_t total) {
            std::size_t ratio = total > 0 ? CATCH_CONFIG_CONSOLE_WIDTH * number / total : 0;
            return (ratio == 0 && number > 0) ? 1 : ratio;
        }

        std::size_t& findMax(std::size_t& i, std::size_t& j, std::size_t& k) {
            if (i > j && i > k)
                return i;
            else if (j > k)
                return j;
            else
                return k;
        }

        struct ColumnInfo {
            enum Justification { Left, Right };
            std::string name;
            int width;
            Justification justification;
        };
        struct ColumnBreak {};
        struct RowBreak {};

        class TablePrinter {
            std::ostream& m_os;
            std::vector<ColumnInfo> m_columnInfos;
            std::ostringstream m_oss;
            int m_currentColumn = -1;
            bool m_isOpen = false;

        public:
            TablePrinter(std::ostream& os, std::vector<ColumnInfo> const& columnInfos)
                : m_os(os),
                m_columnInfos(columnInfos) {
            }

            auto columnInfos() const -> std::vector<ColumnInfo> const& {
                return m_columnInfos;
            }

            void open() {
                if (!m_isOpen) {
                    m_isOpen = true;
                    *this << RowBreak();
                    for (auto const& info : m_columnInfos)
                        *this << info.name << ColumnBreak();
                    *this << RowBreak();
                    m_os << Catch::getLineOfChars<'-'>() << "\n";
                }
            }
            void close() {
                if (m_isOpen) {
                    *this << RowBreak();
                    m_os << std::endl;
                    m_isOpen = false;
                }
            }

            template<typename T>
            friend TablePrinter& operator << (TablePrinter& tp, T const& value) {
                tp.m_oss << value;
                return tp;
            }

            friend TablePrinter& operator << (TablePrinter& tp, ColumnBreak) {
                auto colStr = tp.m_oss.str();
                // This takes account of utf8 encodings
                auto strSize = Catch::StringRef(colStr).numberOfCharacters();
                tp.m_oss.str("");
                tp.open();
                if (tp.m_currentColumn == static_cast<int>(tp.m_columnInfos.size() - 1)) {
                    tp.m_currentColumn = -1;
                    tp.m_os << "\n";
                }
                tp.m_currentColumn++;

                auto colInfo = tp.m_columnInfos[tp.m_currentColumn];
                auto padding = (strSize + 2 < static_cast<std::size_t>(colInfo.width))
                    ? std::string(colInfo.width - (strSize + 2), ' ')
                    : std::string();
                if (colInfo.justification == ColumnInfo::Left)
                    tp.m_os << colStr << padding << " ";
                else
                    tp.m_os << padding << colStr << " ";
                return tp;
            }

            friend TablePrinter& operator << (TablePrinter& tp, RowBreak) {
                if (tp.m_currentColumn > 0) {
                    tp.m_os << "\n";
                    tp.m_currentColumn = -1;
                }
                return tp;
            }
        };

        class Duration {
            enum class Unit {
                Auto,
                Nanoseconds,
                Microseconds,
                Milliseconds,
                Seconds,
                Minutes
            };
            static const uint64_t s_nanosecondsInAMicrosecond = 1000;
            static const uint64_t s_nanosecondsInAMillisecond = 1000 * s_nanosecondsInAMicrosecond;
            static const uint64_t s_nanosecondsInASecond = 1000 * s_nanosecondsInAMillisecond;
            static const uint64_t s_nanosecondsInAMinute = 60 * s_nanosecondsInASecond;

            uint64_t m_inNanoseconds;
            Unit m_units;

        public:
            Duration(uint64_t inNanoseconds, Unit units = Unit::Auto)
                : m_inNanoseconds(inNanoseconds),
                m_units(units) {
                if (m_units == Unit::Auto) {
                    if (m_inNanoseconds < s_nanosecondsInAMicrosecond)
                        m_units = Unit::Nanoseconds;
                    else if (m_inNanoseconds < s_nanosecondsInAMillisecond)
                        m_units = Unit::Microseconds;
                    else if (m_inNanoseconds < s_nanosecondsInASecond)
                        m_units = Unit::Milliseconds;
                    else if (m_inNanoseconds < s_nanosecondsInAMinute)
                        m_units = Unit::Seconds;
                    else
                        m_units = Unit::Minutes;
                }

            }

            auto value() const -> double {
                switch (m_units) {
                    case Unit::Microseconds:
                        return m_inNanoseconds / static_cast<double>(s_nanosecondsInAMicrosecond);
                    case Unit::Milliseconds:
                        return m_inNanoseconds / static_cast<double>(s_nanosecondsInAMillisecond);
                    case Unit::Seconds:
                        return m_inNanoseconds / static_cast<double>(s_nanosecondsInASecond);
                    case Unit::Minutes:
                        return m_inNanoseconds / static_cast<double>(s_nanosecondsInAMinute);
                    default:
                        return static_cast<double>(m_inNanoseconds);
                }
            }
            auto unitsAsString() const -> std::string {
                switch (m_units) {
                    case Unit::Nanoseconds:
                        return "ns";
                    case Unit::Microseconds:
                        return "µs";
                    case Unit::Milliseconds:
                        return "ms";
                    case Unit::Seconds:
                        return "s";
                    case Unit::Minutes:
                        return "m";
                    default:
                        return "** internal error **";
                }

            }
            friend auto operator << (std::ostream& os, Duration const& duration) -> std::ostream& {
                return os << duration.value() << " " << duration.unitsAsString();
            }
        };
    } // end anon namespace

    struct ConsoleReporter : StreamingReporterBase<ConsoleReporter> {
        TablePrinter m_tablePrinter;

        ConsoleReporter(ReporterConfig const& config)
            : StreamingReporterBase(config),
            m_tablePrinter(config.stream(),
            {
                { "benchmark name", CATCH_CONFIG_CONSOLE_WIDTH - 32, ColumnInfo::Left },
                { "iters", 8, ColumnInfo::Right },
                { "elapsed ns", 14, ColumnInfo::Right },
                { "average", 14, ColumnInfo::Right }
            }) {
        }
        ~ConsoleReporter() override;
        static std::string getDescription() {
            return "Reports test results as plain lines of text";
        }

        void noMatchingTestCases(std::string const& spec) override {
            stream << "No test cases matched '" << spec << '\'' << std::endl;
        }

        void assertionStarting(AssertionInfo const&) override {
        }

        bool assertionEnded(AssertionStats const& _assertionStats) override {
            AssertionResult const& result = _assertionStats.assertionResult;

            bool includeResults = m_config->includeSuccessfulResults() || !result.isOk();

            // Drop out if result was successful but we're not printing them.
            if (!includeResults && result.getResultType() != ResultWas::Warning)
                return false;

            lazyPrint();

            AssertionPrinter printer(stream, _assertionStats, includeResults);
            printer.print();
            stream << std::endl;
            return true;
        }

        void sectionStarting(SectionInfo const& _sectionInfo) override {
            m_headerPrinted = false;
            StreamingReporterBase::sectionStarting(_sectionInfo);
        }
        void sectionEnded(SectionStats const& _sectionStats) override {
            m_tablePrinter.close();
            if (_sectionStats.missingAssertions) {
                lazyPrint();
                Colour colour(Colour::ResultError);
                if (m_sectionStack.size() > 1)
                    stream << "\nNo assertions in section";
                else
                    stream << "\nNo assertions in test case";
                stream << " '" << _sectionStats.sectionInfo.name << "'\n" << std::endl;
            }
            if (m_config->showDurations() == ShowDurations::Always) {
                stream << getFormattedDuration(_sectionStats.durationInSeconds) << " s: " << _sectionStats.sectionInfo.name << std::endl;
            }
            if (m_headerPrinted) {
                m_headerPrinted = false;
            }
            StreamingReporterBase::sectionEnded(_sectionStats);
        }

        void benchmarkStarting(BenchmarkInfo const& info) override {
            lazyPrintWithoutClosingBenchmarkTable();

            auto nameCol = Column(info.name).width(m_tablePrinter.columnInfos()[0].width - 2);

            bool firstLine = true;
            for (auto line : nameCol) {
                if (!firstLine)
                    m_tablePrinter << ColumnBreak() << ColumnBreak() << ColumnBreak();
                else
                    firstLine = false;

                m_tablePrinter << line << ColumnBreak();
            }
        }
        void benchmarkEnded(BenchmarkStats const& stats) override {
            Duration average(stats.elapsedTimeInNanoseconds / stats.iterations);
            m_tablePrinter
                << stats.iterations << ColumnBreak()
                << stats.elapsedTimeInNanoseconds << ColumnBreak()
                << average << ColumnBreak();
        }

        void testCaseEnded(TestCaseStats const& _testCaseStats) override {
            m_tablePrinter.close();
            StreamingReporterBase::testCaseEnded(_testCaseStats);
            m_headerPrinted = false;
        }
        void testGroupEnded(TestGroupStats const& _testGroupStats) override {
            if (currentGroupInfo.used) {
                printSummaryDivider();
                stream << "Summary for group '" << _testGroupStats.groupInfo.name << "':\n";
                printTotals(_testGroupStats.totals);
                stream << '\n' << std::endl;
            }
            StreamingReporterBase::testGroupEnded(_testGroupStats);
        }
        void testRunEnded(TestRunStats const& _testRunStats) override {
            printTotalsDivider(_testRunStats.totals);
            printTotals(_testRunStats.totals);
            stream << std::endl;
            StreamingReporterBase::testRunEnded(_testRunStats);
        }

    private:

        class AssertionPrinter {
        public:
            AssertionPrinter& operator= (AssertionPrinter const&) = delete;
            AssertionPrinter(AssertionPrinter const&) = delete;
            AssertionPrinter(std::ostream& _stream, AssertionStats const& _stats, bool _printInfoMessages)
                : stream(_stream),
                stats(_stats),
                result(_stats.assertionResult),
                colour(Colour::None),
                message(result.getMessage()),
                messages(_stats.infoMessages),
                printInfoMessages(_printInfoMessages) {
                switch (result.getResultType()) {
                    case ResultWas::Ok:
                        colour = Colour::Success;
                        passOrFail = "PASSED";
                        //if( result.hasMessage() )
                        if (_stats.infoMessages.size() == 1)
                            messageLabel = "with message";
                        if (_stats.infoMessages.size() > 1)
                            messageLabel = "with messages";
                        break;
                    case ResultWas::ExpressionFailed:
                        if (result.isOk()) {
                            colour = Colour::Success;
                            passOrFail = "FAILED - but was ok";
                        } else {
                            colour = Colour::Error;
                            passOrFail = "FAILED";
                        }
                        if (_stats.infoMessages.size() == 1)
                            messageLabel = "with message";
                        if (_stats.infoMessages.size() > 1)
                            messageLabel = "with messages";
                        break;
                    case ResultWas::ThrewException:
                        colour = Colour::Error;
                        passOrFail = "FAILED";
                        messageLabel = "due to unexpected exception with ";
                        if (_stats.infoMessages.size() == 1)
                            messageLabel += "message";
                        if (_stats.infoMessages.size() > 1)
                            messageLabel += "messages";
                        break;
                    case ResultWas::FatalErrorCondition:
                        colour = Colour::Error;
                        passOrFail = "FAILED";
                        messageLabel = "due to a fatal error condition";
                        break;
                    case ResultWas::DidntThrowException:
                        colour = Colour::Error;
                        passOrFail = "FAILED";
                        messageLabel = "because no exception was thrown where one was expected";
                        break;
                    case ResultWas::Info:
                        messageLabel = "info";
                        break;
                    case ResultWas::Warning:
                        messageLabel = "warning";
                        break;
                    case ResultWas::ExplicitFailure:
                        passOrFail = "FAILED";
                        colour = Colour::Error;
                        if (_stats.infoMessages.size() == 1)
                            messageLabel = "explicitly with message";
                        if (_stats.infoMessages.size() > 1)
                            messageLabel = "explicitly with messages";
                        break;
                        // These cases are here to prevent compiler warnings
                    case ResultWas::Unknown:
                    case ResultWas::FailureBit:
                    case ResultWas::Exception:
                        passOrFail = "** internal error **";
                        colour = Colour::Error;
                        break;
                }
            }

            void print() const {
                printSourceInfo();
                if (stats.totals.assertions.total() > 0) {
                    if (result.isOk())
                        stream << '\n';
                    printResultType();
                    printOriginalExpression();
                    printReconstructedExpression();
                } else {
                    stream << '\n';
                }
                printMessage();
            }

        private:
            void printResultType() const {
                if (!passOrFail.empty()) {
                    Colour colourGuard(colour);
                    stream << passOrFail << ":\n";
                }
            }
            void printOriginalExpression() const {
                if (result.hasExpression()) {
                    Colour colourGuard(Colour::OriginalExpression);
                    stream << "  ";
                    stream << result.getExpressionInMacro();
                    stream << '\n';
                }
            }
            void printReconstructedExpression() const {
                if (result.hasExpandedExpression()) {
                    stream << "with expansion:\n";
                    Colour colourGuard(Colour::ReconstructedExpression);
                    stream << Column(result.getExpandedExpression()).indent(2) << '\n';
                }
            }
            void printMessage() const {
                if (!messageLabel.empty())
                    stream << messageLabel << ':' << '\n';
                for (auto const& msg : messages) {
                    // If this assertion is a warning ignore any INFO messages
                    if (printInfoMessages || msg.type != ResultWas::Info)
                        stream << Column(msg.message).indent(2) << '\n';
                }
            }
            void printSourceInfo() const {
                Colour colourGuard(Colour::FileName);
                stream << result.getSourceInfo() << ": ";
            }

            std::ostream& stream;
            AssertionStats const& stats;
            AssertionResult const& result;
            Colour::Code colour;
            std::string passOrFail;
            std::string messageLabel;
            std::string message;
            std::vector<MessageInfo> messages;
            bool printInfoMessages;
        };

        void lazyPrint() {

            m_tablePrinter.close();
            lazyPrintWithoutClosingBenchmarkTable();
        }

        void lazyPrintWithoutClosingBenchmarkTable() {

            if (!currentTestRunInfo.used)
                lazyPrintRunInfo();
            if (!currentGroupInfo.used)
                lazyPrintGroupInfo();

            if (!m_headerPrinted) {
                printTestCaseAndSectionHeader();
                m_headerPrinted = true;
            }
        }
        void lazyPrintRunInfo() {
            stream << '\n' << getLineOfChars<'~'>() << '\n';
            Colour colour(Colour::SecondaryText);
            stream << currentTestRunInfo->name
                << " is a Catch v" << libraryVersion() << " host application.\n"
                << "Run with -? for options\n\n";

            if (m_config->rngSeed() != 0)
                stream << "Randomness seeded to: " << m_config->rngSeed() << "\n\n";

            currentTestRunInfo.used = true;
        }
        void lazyPrintGroupInfo() {
            if (!currentGroupInfo->name.empty() && currentGroupInfo->groupsCounts > 1) {
                printClosedHeader("Group: " + currentGroupInfo->name);
                currentGroupInfo.used = true;
            }
        }
        void printTestCaseAndSectionHeader() {
            assert(!m_sectionStack.empty());
            printOpenHeader(currentTestCaseInfo->name);

            if (m_sectionStack.size() > 1) {
                Colour colourGuard(Colour::Headers);

                auto
                    it = m_sectionStack.begin() + 1, // Skip first section (test case)
                    itEnd = m_sectionStack.end();
                for (; it != itEnd; ++it)
                    printHeaderString(it->name, 2);
            }

            SourceLineInfo lineInfo = m_sectionStack.back().lineInfo;

            if (!lineInfo.empty()) {
                stream << getLineOfChars<'-'>() << '\n';
                Colour colourGuard(Colour::FileName);
                stream << lineInfo << '\n';
            }
            stream << getLineOfChars<'.'>() << '\n' << std::endl;
        }

        void printClosedHeader(std::string const& _name) {
            printOpenHeader(_name);
            stream << getLineOfChars<'.'>() << '\n';
        }
        void printOpenHeader(std::string const& _name) {
            stream << getLineOfChars<'-'>() << '\n';
            {
                Colour colourGuard(Colour::Headers);
                printHeaderString(_name);
            }
        }

        // if string has a : in first line will set indent to follow it on
        // subsequent lines
        void printHeaderString(std::string const& _string, std::size_t indent = 0) {
            std::size_t i = _string.find(": ");
            if (i != std::string::npos)
                i += 2;
            else
                i = 0;
            stream << Column(_string).indent(indent + i).initialIndent(indent) << '\n';
        }

        struct SummaryColumn {

            SummaryColumn(std::string const& _label, Colour::Code _colour)
                : label(_label),
                colour(_colour) {
            }
            SummaryColumn addRow(std::size_t count) {
                std::ostringstream oss;
                oss << count;
                std::string row = oss.str();
                for (auto& oldRow : rows) {
                    while (oldRow.size() < row.size())
                        oldRow = ' ' + oldRow;
                    while (oldRow.size() > row.size())
                        row = ' ' + row;
                }
                rows.push_back(row);
                return *this;
            }

            std::string label;
            Colour::Code colour;
            std::vector<std::string> rows;

        };

        void printTotals(Totals const& totals) {
            if (totals.testCases.total() == 0) {
                stream << Colour(Colour::Warning) << "No tests ran\n";
            } else if (totals.assertions.total() > 0 && totals.testCases.allPassed()) {
                stream << Colour(Colour::ResultSuccess) << "All tests passed";
                stream << " ("
                    << pluralise(totals.assertions.passed, "assertion") << " in "
                    << pluralise(totals.testCases.passed, "test case") << ')'
                    << '\n';
            } else {

                std::vector<SummaryColumn> columns;
                columns.push_back(SummaryColumn("", Colour::None)
                                  .addRow(totals.testCases.total())
                                  .addRow(totals.assertions.total()));
                columns.push_back(SummaryColumn("passed", Colour::Success)
                                  .addRow(totals.testCases.passed)
                                  .addRow(totals.assertions.passed));
                columns.push_back(SummaryColumn("failed", Colour::ResultError)
                                  .addRow(totals.testCases.failed)
                                  .addRow(totals.assertions.failed));
                columns.push_back(SummaryColumn("failed as expected", Colour::ResultExpectedFailure)
                                  .addRow(totals.testCases.failedButOk)
                                  .addRow(totals.assertions.failedButOk));

                printSummaryRow("test cases", columns, 0);
                printSummaryRow("assertions", columns, 1);
            }
            system("pause");
        }
        void printSummaryRow(std::string const& label, std::vector<SummaryColumn> const& cols, std::size_t row) {
            for (auto col : cols) {
                std::string value = col.rows[row];
                if (col.label.empty()) {
                    stream << label << ": ";
                    if (value != "0")
                        stream << value;
                    else
                        stream << Colour(Colour::Warning) << "- none -";
                } else if (value != "0") {
                    stream << Colour(Colour::LightGrey) << " | ";
                    stream << Colour(col.colour)
                        << value << ' ' << col.label;
                }
            }
            stream << '\n';
        }

        void printTotalsDivider(Totals const& totals) {
            if (totals.testCases.total() > 0) {
                std::size_t failedRatio = makeRatio(totals.testCases.failed, totals.testCases.total());
                std::size_t failedButOkRatio = makeRatio(totals.testCases.failedButOk, totals.testCases.total());
                std::size_t passedRatio = makeRatio(totals.testCases.passed, totals.testCases.total());
                while (failedRatio + failedButOkRatio + passedRatio < CATCH_CONFIG_CONSOLE_WIDTH - 1)
                    findMax(failedRatio, failedButOkRatio, passedRatio)++;
                while (failedRatio + failedButOkRatio + passedRatio > CATCH_CONFIG_CONSOLE_WIDTH - 1)
                    findMax(failedRatio, failedButOkRatio, passedRatio)--;

                stream << Colour(Colour::Error) << std::string(failedRatio, '=');
                stream << Colour(Colour::ResultExpectedFailure) << std::string(failedButOkRatio, '=');
                if (totals.testCases.allPassed())
                    stream << Colour(Colour::ResultSuccess) << std::string(passedRatio, '=');
                else
                    stream << Colour(Colour::Success) << std::string(passedRatio, '=');
            } else {
                stream << Colour(Colour::Warning) << std::string(CATCH_CONFIG_CONSOLE_WIDTH - 1, '=');
            }
            stream << '\n';
        }
        void printSummaryDivider() {
            stream << getLineOfChars<'-'>() << '\n';
        }

    private:
        bool m_headerPrinted = false;
    };

    CATCH_REGISTER_REPORTER("console", ConsoleReporter)

        ConsoleReporter::~ConsoleReporter() {}

} // end namespace Catch

#if defined(_MSC_VER)
#pragma warning(pop)
#endif
  // end catch_reporter_console.cpp
  // start catch_reporter_junit.cpp

#include <assert.h>

#include <ctime>
#include <algorithm>

namespace Catch {

    namespace {
        std::string getCurrentTimestamp() {
            // Beware, this is not reentrant because of backward compatibility issues
            // Also, UTC only, again because of backward compatibility (%z is C++11)
            time_t rawtime;
            std::time(&rawtime);
            auto const timeStampSize = sizeof("2017-01-16T17:06:45Z");

#ifdef _MSC_VER
            std::tm timeInfo = {};
            gmtime_s(&timeInfo, &rawtime);
#else
            std::tm* timeInfo;
            timeInfo = std::gmtime(&rawtime);
#endif

            char timeStamp[timeStampSize];
            const char * const fmt = "%Y-%m-%dT%H:%M:%SZ";

#ifdef _MSC_VER
            std::strftime(timeStamp, timeStampSize, fmt, &timeInfo);
#else
            std::strftime(timeStamp, timeStampSize, fmt, timeInfo);
#endif
            return std::string(timeStamp);
        }

        std::string fileNameTag(const std::vector<std::string> &tags) {
            auto it = std::find_if(begin(tags),
                                   end(tags),
                                   [](std::string const& tag) {return tag.front() == '#'; });
            if (it != tags.end())
                return it->substr(1);
            return std::string();
        }
    }

    class JunitReporter : public CumulativeReporterBase<JunitReporter> {
    public:
        JunitReporter(ReporterConfig const& _config)
            : CumulativeReporterBase(_config),
            xml(_config.stream()) {
            m_reporterPrefs.shouldRedirectStdOut = true;
        }

        ~JunitReporter() override;

        static std::string getDescription() {
            return "Reports test results in an XML format that looks like Ant's junitreport target";
        }

        void noMatchingTestCases(std::string const& /*spec*/) override {}

        void testRunStarting(TestRunInfo const& runInfo) override {
            CumulativeReporterBase::testRunStarting(runInfo);
            xml.startElement("testsuites");
        }

        void testGroupStarting(GroupInfo const& groupInfo) override {
            suiteTimer.start();
            stdOutForSuite.str("");
            stdErrForSuite.str("");
            unexpectedExceptions = 0;
            CumulativeReporterBase::testGroupStarting(groupInfo);
        }

        void testCaseStarting(TestCaseInfo const& testCaseInfo) override {
            m_okToFail = testCaseInfo.okToFail();
        }
        bool assertionEnded(AssertionStats const& assertionStats) override {
            if (assertionStats.assertionResult.getResultType() == ResultWas::ThrewException && !m_okToFail)
                unexpectedExceptions++;
            return CumulativeReporterBase::assertionEnded(assertionStats);
        }

        void testCaseEnded(TestCaseStats const& testCaseStats) override {
            stdOutForSuite << testCaseStats.stdOut;
            stdErrForSuite << testCaseStats.stdErr;
            CumulativeReporterBase::testCaseEnded(testCaseStats);
        }

        void testGroupEnded(TestGroupStats const& testGroupStats) override {
            double suiteTime = suiteTimer.getElapsedSeconds();
            CumulativeReporterBase::testGroupEnded(testGroupStats);
            writeGroup(*m_testGroups.back(), suiteTime);
        }

        void testRunEndedCumulative() override {
            xml.endElement();
        }

        void writeGroup(TestGroupNode const& groupNode, double suiteTime) {
            XmlWriter::ScopedElement e = xml.scopedElement("testsuite");
            TestGroupStats const& stats = groupNode.value;
            xml.writeAttribute("name", stats.groupInfo.name);
            xml.writeAttribute("errors", unexpectedExceptions);
            xml.writeAttribute("failures", stats.totals.assertions.failed - unexpectedExceptions);
            xml.writeAttribute("tests", stats.totals.assertions.total());
            xml.writeAttribute("hostname", "tbd"); // !TBD
            if (m_config->showDurations() == ShowDurations::Never)
                xml.writeAttribute("time", "");
            else
                xml.writeAttribute("time", suiteTime);
            xml.writeAttribute("timestamp", getCurrentTimestamp());

            // Write test cases
            for (auto const& child : groupNode.children)
                writeTestCase(*child);

            xml.scopedElement("system-out").writeText(trim(stdOutForSuite.str()), false);
            xml.scopedElement("system-err").writeText(trim(stdErrForSuite.str()), false);
        }

        void writeTestCase(TestCaseNode const& testCaseNode) {
            TestCaseStats const& stats = testCaseNode.value;

            // All test cases have exactly one section - which represents the
            // test case itself. That section may have 0-n nested sections
            assert(testCaseNode.children.size() == 1);
            SectionNode const& rootSection = *testCaseNode.children.front();

            std::string className = stats.testInfo.className;

            if (className.empty()) {
                className = fileNameTag(stats.testInfo.tags);
                if (className.empty())
                    className = "global";
            }

            if (!m_config->name().empty())
                className = m_config->name() + "." + className;

            writeSection(className, "", rootSection);
        }

        void writeSection(std::string const& className,
                          std::string const& rootName,
                          SectionNode const& sectionNode) {
            std::string name = trim(sectionNode.stats.sectionInfo.name);
            if (!rootName.empty())
                name = rootName + '/' + name;

            if (!sectionNode.assertions.empty() ||
                !sectionNode.stdOut.empty() ||
                !sectionNode.stdErr.empty()) {
                XmlWriter::ScopedElement e = xml.scopedElement("testcase");
                if (className.empty()) {
                    xml.writeAttribute("classname", name);
                    xml.writeAttribute("name", "root");
                } else {
                    xml.writeAttribute("classname", className);
                    xml.writeAttribute("name", name);
                }
                xml.writeAttribute("time", ::Catch::Detail::stringify(sectionNode.stats.durationInSeconds));

                writeAssertions(sectionNode);

                if (!sectionNode.stdOut.empty())
                    xml.scopedElement("system-out").writeText(trim(sectionNode.stdOut), false);
                if (!sectionNode.stdErr.empty())
                    xml.scopedElement("system-err").writeText(trim(sectionNode.stdErr), false);
            }
            for (auto const& childNode : sectionNode.childSections)
                if (className.empty())
                    writeSection(name, "", *childNode);
                else
                    writeSection(className, name, *childNode);
        }

        void writeAssertions(SectionNode const& sectionNode) {
            for (auto const& assertion : sectionNode.assertions)
                writeAssertion(assertion);
        }
        void writeAssertion(AssertionStats const& stats) {
            AssertionResult const& result = stats.assertionResult;
            if (!result.isOk()) {
                std::string elementName;
                switch (result.getResultType()) {
                    case ResultWas::ThrewException:
                    case ResultWas::FatalErrorCondition:
                        elementName = "error";
                        break;
                    case ResultWas::ExplicitFailure:
                        elementName = "failure";
                        break;
                    case ResultWas::ExpressionFailed:
                        elementName = "failure";
                        break;
                    case ResultWas::DidntThrowException:
                        elementName = "failure";
                        break;

                        // We should never see these here:
                    case ResultWas::Info:
                    case ResultWas::Warning:
                    case ResultWas::Ok:
                    case ResultWas::Unknown:
                    case ResultWas::FailureBit:
                    case ResultWas::Exception:
                        elementName = "internalError";
                        break;
                }

                XmlWriter::ScopedElement e = xml.scopedElement(elementName);

                xml.writeAttribute("message", result.getExpandedExpression());
                xml.writeAttribute("type", result.getTestMacroName());

                std::ostringstream oss;
                if (!result.getMessage().empty())
                    oss << result.getMessage() << '\n';
                for (auto const& msg : stats.infoMessages)
                    if (msg.type == ResultWas::Info)
                        oss << msg.message << '\n';

                oss << "at " << result.getSourceInfo();
                xml.writeText(oss.str(), false);
            }
        }

        XmlWriter xml;
        Timer suiteTimer;
        std::ostringstream stdOutForSuite;
        std::ostringstream stdErrForSuite;
        unsigned int unexpectedExceptions = 0;
        bool m_okToFail = false;
    };

    JunitReporter::~JunitReporter() {}
    CATCH_REGISTER_REPORTER("junit", JunitReporter)

} // end namespace Catch
  // end catch_reporter_junit.cpp
  // start catch_reporter_multi.cpp

namespace Catch {

    void MultipleReporters::add(IStreamingReporterPtr&& reporter) {
        m_reporters.push_back(std::move(reporter));
    }

    ReporterPreferences MultipleReporters::getPreferences() const {
        return m_reporters[0]->getPreferences();
    }

    std::set<Verbosity> MultipleReporters::getSupportedVerbosities() {
        return std::set<Verbosity>{ };
    }

    void MultipleReporters::noMatchingTestCases(std::string const& spec) {
        for (auto const& reporter : m_reporters)
            reporter->noMatchingTestCases(spec);
    }

    void MultipleReporters::benchmarkStarting(BenchmarkInfo const& benchmarkInfo) {
        for (auto const& reporter : m_reporters)
            reporter->benchmarkStarting(benchmarkInfo);
    }
    void MultipleReporters::benchmarkEnded(BenchmarkStats const& benchmarkStats) {
        for (auto const& reporter : m_reporters)
            reporter->benchmarkEnded(benchmarkStats);
    }

    void MultipleReporters::testRunStarting(TestRunInfo const& testRunInfo) {
        for (auto const& reporter : m_reporters)
            reporter->testRunStarting(testRunInfo);
    }

    void MultipleReporters::testGroupStarting(GroupInfo const& groupInfo) {
        for (auto const& reporter : m_reporters)
            reporter->testGroupStarting(groupInfo);
    }

    void MultipleReporters::testCaseStarting(TestCaseInfo const& testInfo) {
        for (auto const& reporter : m_reporters)
            reporter->testCaseStarting(testInfo);
    }

    void MultipleReporters::sectionStarting(SectionInfo const& sectionInfo) {
        for (auto const& reporter : m_reporters)
            reporter->sectionStarting(sectionInfo);
    }

    void MultipleReporters::assertionStarting(AssertionInfo const& assertionInfo) {
        for (auto const& reporter : m_reporters)
            reporter->assertionStarting(assertionInfo);
    }

    // The return value indicates if the messages buffer should be cleared:
    bool MultipleReporters::assertionEnded(AssertionStats const& assertionStats) {
        bool clearBuffer = false;
        for (auto const& reporter : m_reporters)
            clearBuffer |= reporter->assertionEnded(assertionStats);
        return clearBuffer;
    }

    void MultipleReporters::sectionEnded(SectionStats const& sectionStats) {
        for (auto const& reporter : m_reporters)
            reporter->sectionEnded(sectionStats);
    }

    void MultipleReporters::testCaseEnded(TestCaseStats const& testCaseStats) {
        for (auto const& reporter : m_reporters)
            reporter->testCaseEnded(testCaseStats);
    }

    void MultipleReporters::testGroupEnded(TestGroupStats const& testGroupStats) {
        for (auto const& reporter : m_reporters)
            reporter->testGroupEnded(testGroupStats);
    }

    void MultipleReporters::testRunEnded(TestRunStats const& testRunStats) {
        for (auto const& reporter : m_reporters)
            reporter->testRunEnded(testRunStats);
    }

    void MultipleReporters::skipTest(TestCaseInfo const& testInfo) {
        for (auto const& reporter : m_reporters)
            reporter->skipTest(testInfo);
    }

    bool MultipleReporters::isMulti() const {
        return true;
    }

} // end namespace Catch
  // end catch_reporter_multi.cpp
  // start catch_reporter_xml.cpp

#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable:4061) // Not all labels are EXPLICITLY handled in switch
  // Note that 4062 (not all labels are handled
  // and default is missing) is enabled
#endif

namespace Catch {
    class XmlReporter : public StreamingReporterBase<XmlReporter> {
    public:
        XmlReporter(ReporterConfig const& _config)
            : StreamingReporterBase(_config),
            m_xml(_config.stream()) {
            m_reporterPrefs.shouldRedirectStdOut = true;
        }

        ~XmlReporter() override;

        static std::string getDescription() {
            return "Reports test results as an XML document";
        }

        virtual std::string getStylesheetRef() const {
            return std::string();
        }

        void writeSourceInfo(SourceLineInfo const& sourceInfo) {
            m_xml
                .writeAttribute("filename", sourceInfo.file)
                .writeAttribute("line", sourceInfo.line);
        }

    public: // StreamingReporterBase

        void noMatchingTestCases(std::string const& s) override {
            StreamingReporterBase::noMatchingTestCases(s);
        }

        void testRunStarting(TestRunInfo const& testInfo) override {
            StreamingReporterBase::testRunStarting(testInfo);
            std::string stylesheetRef = getStylesheetRef();
            if (!stylesheetRef.empty())
                m_xml.writeStylesheetRef(stylesheetRef);
            m_xml.startElement("Catch");
            if (!m_config->name().empty())
                m_xml.writeAttribute("name", m_config->name());
        }

        void testGroupStarting(GroupInfo const& groupInfo) override {
            StreamingReporterBase::testGroupStarting(groupInfo);
            m_xml.startElement("Group")
                .writeAttribute("name", groupInfo.name);
        }

        void testCaseStarting(TestCaseInfo const& testInfo) override {
            StreamingReporterBase::testCaseStarting(testInfo);
            m_xml.startElement("TestCase")
                .writeAttribute("name", trim(testInfo.name))
                .writeAttribute("description", testInfo.description)
                .writeAttribute("tags", testInfo.tagsAsString());

            writeSourceInfo(testInfo.lineInfo);

            if (m_config->showDurations() == ShowDurations::Always)
                m_testCaseTimer.start();
            m_xml.ensureTagClosed();
        }

        void sectionStarting(SectionInfo const& sectionInfo) override {
            StreamingReporterBase::sectionStarting(sectionInfo);
            if (m_sectionDepth++ > 0) {
                m_xml.startElement("Section")
                    .writeAttribute("name", trim(sectionInfo.name))
                    .writeAttribute("description", sectionInfo.description);
                writeSourceInfo(sectionInfo.lineInfo);
                m_xml.ensureTagClosed();
            }
        }

        void assertionStarting(AssertionInfo const&) override {}

        bool assertionEnded(AssertionStats const& assertionStats) override {

            AssertionResult const& result = assertionStats.assertionResult;

            bool includeResults = m_config->includeSuccessfulResults() || !result.isOk();

            if (includeResults) {
                // Print any info messages in <Info> tags.
                for (auto const& msg : assertionStats.infoMessages) {
                    if (msg.type == ResultWas::Info) {
                        m_xml.scopedElement("Info")
                            .writeText(msg.message);
                    } else if (msg.type == ResultWas::Warning) {
                        m_xml.scopedElement("Warning")
                            .writeText(msg.message);
                    }
                }
            }

            // Drop out if result was successful but we're not printing them.
            if (!includeResults && result.getResultType() != ResultWas::Warning)
                return true;

            // Print the expression if there is one.
            if (result.hasExpression()) {
                m_xml.startElement("Expression")
                    .writeAttribute("success", result.succeeded())
                    .writeAttribute("type", result.getTestMacroName());

                writeSourceInfo(result.getSourceInfo());

                m_xml.scopedElement("Original")
                    .writeText(result.getExpression());
                m_xml.scopedElement("Expanded")
                    .writeText(result.getExpandedExpression());
            }

            // And... Print a result applicable to each result type.
            switch (result.getResultType()) {
                case ResultWas::ThrewException:
                    m_xml.startElement("Exception");
                    writeSourceInfo(result.getSourceInfo());
                    m_xml.writeText(result.getMessage());
                    m_xml.endElement();
                    break;
                case ResultWas::FatalErrorCondition:
                    m_xml.startElement("FatalErrorCondition");
                    writeSourceInfo(result.getSourceInfo());
                    m_xml.writeText(result.getMessage());
                    m_xml.endElement();
                    break;
                case ResultWas::Info:
                    m_xml.scopedElement("Info")
                        .writeText(result.getMessage());
                    break;
                case ResultWas::Warning:
                    // Warning will already have been written
                    break;
                case ResultWas::ExplicitFailure:
                    m_xml.startElement("Failure");
                    writeSourceInfo(result.getSourceInfo());
                    m_xml.writeText(result.getMessage());
                    m_xml.endElement();
                    break;
                default:
                    break;
            }

            if (result.hasExpression())
                m_xml.endElement();

            return true;
        }

        void sectionEnded(SectionStats const& sectionStats) override {
            StreamingReporterBase::sectionEnded(sectionStats);
            if (--m_sectionDepth > 0) {
                XmlWriter::ScopedElement e = m_xml.scopedElement("OverallResults");
                e.writeAttribute("successes", sectionStats.assertions.passed);
                e.writeAttribute("failures", sectionStats.assertions.failed);
                e.writeAttribute("expectedFailures", sectionStats.assertions.failedButOk);

                if (m_config->showDurations() == ShowDurations::Always)
                    e.writeAttribute("durationInSeconds", sectionStats.durationInSeconds);

                m_xml.endElement();
            }
        }

        void testCaseEnded(TestCaseStats const& testCaseStats) override {
            StreamingReporterBase::testCaseEnded(testCaseStats);
            XmlWriter::ScopedElement e = m_xml.scopedElement("OverallResult");
            e.writeAttribute("success", testCaseStats.totals.assertions.allOk());

            if (m_config->showDurations() == ShowDurations::Always)
                e.writeAttribute("durationInSeconds", m_testCaseTimer.getElapsedSeconds());

            if (!testCaseStats.stdOut.empty())
                m_xml.scopedElement("StdOut").writeText(trim(testCaseStats.stdOut), false);
            if (!testCaseStats.stdErr.empty())
                m_xml.scopedElement("StdErr").writeText(trim(testCaseStats.stdErr), false);

            m_xml.endElement();
        }

        void testGroupEnded(TestGroupStats const& testGroupStats) override {
            StreamingReporterBase::testGroupEnded(testGroupStats);
            // TODO: Check testGroupStats.aborting and act accordingly.
            m_xml.scopedElement("OverallResults")
                .writeAttribute("successes", testGroupStats.totals.assertions.passed)
                .writeAttribute("failures", testGroupStats.totals.assertions.failed)
                .writeAttribute("expectedFailures", testGroupStats.totals.assertions.failedButOk);
            m_xml.endElement();
        }

        void testRunEnded(TestRunStats const& testRunStats) override {
            StreamingReporterBase::testRunEnded(testRunStats);
            m_xml.scopedElement("OverallResults")
                .writeAttribute("successes", testRunStats.totals.assertions.passed)
                .writeAttribute("failures", testRunStats.totals.assertions.failed)
                .writeAttribute("expectedFailures", testRunStats.totals.assertions.failedButOk);
            m_xml.endElement();
        }

    private:
        Timer m_testCaseTimer;
        XmlWriter m_xml;
        int m_sectionDepth = 0;
    };

    XmlReporter::~XmlReporter() {}
    CATCH_REGISTER_REPORTER("xml", XmlReporter)

} // end namespace Catch

#if defined(_MSC_VER)
#pragma warning(pop)
#endif
  // end catch_reporter_xml.cpp

namespace Catch {
    LeakDetector leakDetector;
}

#ifdef __clang__
#pragma clang diagnostic pop
#endif

// end catch_impl.hpp
#endif

#ifdef CATCH_CONFIG_MAIN
// start catch_default_main.hpp

#ifndef __OBJC__

#if defined(WIN32) && defined(_UNICODE) && !defined(DO_NOT_USE_WMAIN)
// Standard C/C++ Win32 Unicode wmain entry point
extern "C" int wmain(int argc, wchar_t * argv[], wchar_t *[]) {
#else
// Standard C/C++ main entry point
int main(int argc, char * argv[]) {
#endif

    return Catch::Session().run(argc, argv);
}

#else // __OBJC__

// Objective-C entry point
int main(int argc, char * const argv[]) {
#if !CATCH_ARC_ENABLED
    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
#endif

    Catch::registerTestMethods();
    int result = Catch::Session().run(argc, (char**)argv);

#if !CATCH_ARC_ENABLED
    [pool drain];
#endif

    return result;
}

#endif // __OBJC__

// end catch_default_main.hpp
#endif

#ifdef CLARA_CONFIG_MAIN_NOT_DEFINED
#  undef CLARA_CONFIG_MAIN
#endif

#if !defined(CATCH_CONFIG_DISABLE)
//////
// If this config identifier is defined then all CATCH macros are prefixed with CATCH_
#ifdef CATCH_CONFIG_PREFIX_ALL

#define CATCH_REQUIRE( ... ) INTERNAL_CATCH_TEST( "CATCH_REQUIRE", Catch::ResultDisposition::Normal, __VA_ARGS__ )
#define CATCH_REQUIRE_FALSE( ... ) INTERNAL_CATCH_TEST( "CATCH_REQUIRE_FALSE", Catch::ResultDisposition::Normal | Catch::ResultDisposition::FalseTest, __VA_ARGS__ )

#define CATCH_REQUIRE_THROWS( ... ) INTERNAL_CATCH_THROWS( "CATCH_REQUIRE_THROWS", Catch::ResultDisposition::Normal, "", __VA_ARGS__ )
#define CATCH_REQUIRE_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( "CATCH_REQUIRE_THROWS_AS", exceptionType, Catch::ResultDisposition::Normal, expr )
#define CATCH_REQUIRE_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS_STR_MATCHES( "CATCH_REQUIRE_THROWS_WITH", Catch::ResultDisposition::Normal, matcher, expr )
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CATCH_REQUIRE_THROWS_MATCHES( expr, exceptionType, matcher ) INTERNAL_CATCH_THROWS_MATCHES( "CATCH_REQUIRE_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::Normal, matcher, expr )
#endif// CATCH_CONFIG_DISABLE_MATCHERS
#define CATCH_REQUIRE_NOTHROW( ... ) INTERNAL_CATCH_NO_THROW( "CATCH_REQUIRE_NOTHROW", Catch::ResultDisposition::Normal, __VA_ARGS__ )

#define CATCH_CHECK( ... ) INTERNAL_CATCH_TEST( "CATCH_CHECK", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
#define CATCH_CHECK_FALSE( ... ) INTERNAL_CATCH_TEST( "CATCH_CHECK_FALSE", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::FalseTest, __VA_ARGS__ )
#define CATCH_CHECKED_IF( ... ) INTERNAL_CATCH_IF( "CATCH_CHECKED_IF", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
#define CATCH_CHECKED_ELSE( ... ) INTERNAL_CATCH_ELSE( "CATCH_CHECKED_ELSE", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
#define CATCH_CHECK_NOFAIL( ... ) INTERNAL_CATCH_TEST( "CATCH_CHECK_NOFAIL", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::SuppressFail, __VA_ARGS__ )

#define CATCH_CHECK_THROWS( ... )  INTERNAL_CATCH_THROWS( "CATCH_CHECK_THROWS", Catch::ResultDisposition::ContinueOnFailure, "", __VA_ARGS__ )
#define CATCH_CHECK_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( "CATCH_CHECK_THROWS_AS", exceptionType, Catch::ResultDisposition::ContinueOnFailure, expr )
#define CATCH_CHECK_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS_STR_MATCHES( "CATCH_CHECK_THROWS_WITH", Catch::ResultDisposition::ContinueOnFailure, matcher, expr )
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CATCH_CHECK_THROWS_MATCHES( expr, exceptionType, matcher ) INTERNAL_CATCH_THROWS_MATCHES( "CATCH_CHECK_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::ContinueOnFailure, matcher, expr )
#endif // CATCH_CONFIG_DISABLE_MATCHERS
#define CATCH_CHECK_NOTHROW( ... ) INTERNAL_CATCH_NO_THROW( "CATCH_CHECK_NOTHROW", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )

#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CATCH_CHECK_THAT( arg, matcher ) INTERNAL_CHECK_THAT( "CATCH_CHECK_THAT", matcher, Catch::ResultDisposition::ContinueOnFailure, arg )

#define CATCH_REQUIRE_THAT( arg, matcher ) INTERNAL_CHECK_THAT( "CATCH_REQUIRE_THAT", matcher, Catch::ResultDisposition::Normal, arg )
#endif // CATCH_CONFIG_DISABLE_MATCHERS

#define CATCH_INFO( msg ) INTERNAL_CATCH_INFO( "CATCH_INFO", msg )
#define CATCH_WARN( msg ) INTERNAL_CATCH_MSG( "CATCH_WARN", Catch::ResultWas::Warning, Catch::ResultDisposition::ContinueOnFailure, msg )
#define CATCH_CAPTURE( msg ) INTERNAL_CATCH_INFO( "CATCH_CAPTURE", #msg " := " << ::Catch::Detail::stringify(msg) )

#define CATCH_TEST_CASE( ... ) INTERNAL_CATCH_TESTCASE( __VA_ARGS__ )
#define CATCH_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, __VA_ARGS__ )
#define CATCH_METHOD_AS_TEST_CASE( method, ... ) INTERNAL_CATCH_METHOD_AS_TEST_CASE( method, __VA_ARGS__ )
#define CATCH_REGISTER_TEST_CASE( Function, ... ) INTERNAL_CATCH_REGISTER_TESTCASE( Function, __VA_ARGS__ )
#define CATCH_SECTION( ... ) INTERNAL_CATCH_SECTION( __VA_ARGS__ )
#define CATCH_FAIL( ... ) INTERNAL_CATCH_MSG( "CATCH_FAIL", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::Normal, __VA_ARGS__ )
#define CATCH_FAIL_CHECK( ... ) INTERNAL_CATCH_MSG( "CATCH_FAIL_CHECK", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
#define CATCH_SUCCEED( ... ) INTERNAL_CATCH_MSG( "CATCH_SUCCEED", Catch::ResultWas::Ok, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )

#define CATCH_ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE()

// "BDD-style" convenience wrappers
#define CATCH_SCENARIO( ... ) CATCH_TEST_CASE( "Scenario: " __VA_ARGS__ )
#define CATCH_SCENARIO_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, "Scenario: " __VA_ARGS__ )
#define CATCH_GIVEN( desc )    CATCH_SECTION( std::string( "Given: ") + desc )
#define CATCH_WHEN( desc )     CATCH_SECTION( std::string( " When: ") + desc )
#define CATCH_AND_WHEN( desc ) CATCH_SECTION( std::string( "  And: ") + desc )
#define CATCH_THEN( desc )     CATCH_SECTION( std::string( " Then: ") + desc )
#define CATCH_AND_THEN( desc ) CATCH_SECTION( std::string( "  And: ") + desc )

// If CATCH_CONFIG_PREFIX_ALL is not defined then the CATCH_ prefix is not required
#else

#define REQUIRE( ... ) INTERNAL_CATCH_TEST( "REQUIRE", Catch::ResultDisposition::Normal, __VA_ARGS__  )
#define REQUIRE_FALSE( ... ) INTERNAL_CATCH_TEST( "REQUIRE_FALSE", Catch::ResultDisposition::Normal | Catch::ResultDisposition::FalseTest, __VA_ARGS__ )

#define REQUIRE_THROWS( ... ) INTERNAL_CATCH_THROWS( "REQUIRE_THROWS", Catch::ResultDisposition::Normal, __VA_ARGS__ )
#define REQUIRE_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( "REQUIRE_THROWS_AS", exceptionType, Catch::ResultDisposition::Normal, expr )
#define REQUIRE_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS_STR_MATCHES( "REQUIRE_THROWS_WITH", Catch::ResultDisposition::Normal, matcher, expr )
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define REQUIRE_THROWS_MATCHES( expr, exceptionType, matcher ) INTERNAL_CATCH_THROWS_MATCHES( "REQUIRE_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::Normal, matcher, expr )
#endif // CATCH_CONFIG_DISABLE_MATCHERS
#define REQUIRE_NOTHROW( ... ) INTERNAL_CATCH_NO_THROW( "REQUIRE_NOTHROW", Catch::ResultDisposition::Normal, __VA_ARGS__ )

#define CHECK( ... ) INTERNAL_CATCH_TEST( "CHECK", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
#define CHECK_FALSE( ... ) INTERNAL_CATCH_TEST( "CHECK_FALSE", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::FalseTest, __VA_ARGS__ )
#define CHECKED_IF( ... ) INTERNAL_CATCH_IF( "CHECKED_IF", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
#define CHECKED_ELSE( ... ) INTERNAL_CATCH_ELSE( "CHECKED_ELSE", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
#define CHECK_NOFAIL( ... ) INTERNAL_CATCH_TEST( "CHECK_NOFAIL", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::SuppressFail, __VA_ARGS__ )

#define CHECK_THROWS( ... )  INTERNAL_CATCH_THROWS( "CHECK_THROWS", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
#define CHECK_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( "CHECK_THROWS_AS", exceptionType, Catch::ResultDisposition::ContinueOnFailure, expr )
#define CHECK_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS_STR_MATCHES( "CHECK_THROWS_WITH", Catch::ResultDisposition::ContinueOnFailure, matcher, expr )
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CHECK_THROWS_MATCHES( expr, exceptionType, matcher ) INTERNAL_CATCH_THROWS_MATCHES( "CHECK_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::ContinueOnFailure, matcher, expr )
#endif // CATCH_CONFIG_DISABLE_MATCHERS
#define CHECK_NOTHROW( ... ) INTERNAL_CATCH_NO_THROW( "CHECK_NOTHROW", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )

#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CHECK_THAT( arg, matcher ) INTERNAL_CHECK_THAT( "CHECK_THAT", matcher, Catch::ResultDisposition::ContinueOnFailure, arg )

#define REQUIRE_THAT( arg, matcher ) INTERNAL_CHECK_THAT( "REQUIRE_THAT", matcher, Catch::ResultDisposition::Normal, arg )
#endif // CATCH_CONFIG_DISABLE_MATCHERS

#define INFO( msg ) INTERNAL_CATCH_INFO( "INFO", msg )
#define WARN( msg ) INTERNAL_CATCH_MSG( "WARN", Catch::ResultWas::Warning, Catch::ResultDisposition::ContinueOnFailure, msg )
#define CAPTURE( msg ) INTERNAL_CATCH_INFO( "CAPTURE", #msg " := " << ::Catch::Detail::stringify(msg) )

#define TEST_CASE( ... ) INTERNAL_CATCH_TESTCASE( __VA_ARGS__ )
#define TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, __VA_ARGS__ )
#define METHOD_AS_TEST_CASE( method, ... ) INTERNAL_CATCH_METHOD_AS_TEST_CASE( method, __VA_ARGS__ )
#define REGISTER_TEST_CASE( Function, ... ) INTERNAL_CATCH_REGISTER_TESTCASE( Function, __VA_ARGS__ )
#define SECTION( ... ) INTERNAL_CATCH_SECTION( __VA_ARGS__ )
#define FAIL( ... ) INTERNAL_CATCH_MSG( "FAIL", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::Normal, __VA_ARGS__ )
#define FAIL_CHECK( ... ) INTERNAL_CATCH_MSG( "FAIL_CHECK", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
#define SUCCEED( ... ) INTERNAL_CATCH_MSG( "SUCCEED", Catch::ResultWas::Ok, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
#define ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE()

#endif

#define CATCH_TRANSLATE_EXCEPTION( signature ) INTERNAL_CATCH_TRANSLATE_EXCEPTION( signature )

// "BDD-style" convenience wrappers
#define SCENARIO( ... ) TEST_CASE( "Scenario: " __VA_ARGS__ )
#define SCENARIO_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, "Scenario: " __VA_ARGS__ )

#define GIVEN( desc )    SECTION( std::string("   Given: ") + desc )
#define WHEN( desc )     SECTION( std::string("    When: ") + desc )
#define AND_WHEN( desc ) SECTION( std::string("And when: ") + desc )
#define THEN( desc )     SECTION( std::string("    Then: ") + desc )
#define AND_THEN( desc ) SECTION( std::string("     And: ") + desc )

using Catch::Detail::Approx;

#else
//////
// If this config identifier is defined then all CATCH macros are prefixed with CATCH_
#ifdef CATCH_CONFIG_PREFIX_ALL

#define CATCH_REQUIRE( ... )        (void)(0)
#define CATCH_REQUIRE_FALSE( ... )  (void)(0)

#define CATCH_REQUIRE_THROWS( ... ) (void)(0)
#define CATCH_REQUIRE_THROWS_AS( expr, exceptionType ) (void)(0)
#define CATCH_REQUIRE_THROWS_WITH( expr, matcher )     (void)(0)
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CATCH_REQUIRE_THROWS_MATCHES( expr, exceptionType, matcher ) (void)(0)
#endif// CATCH_CONFIG_DISABLE_MATCHERS
#define CATCH_REQUIRE_NOTHROW( ... ) (void)(0)

#define CATCH_CHECK( ... )         (void)(0)
#define CATCH_CHECK_FALSE( ... )   (void)(0)
#define CATCH_CHECKED_IF( ... )    if (__VA_ARGS__)
#define CATCH_CHECKED_ELSE( ... )  if (!(__VA_ARGS__))
#define CATCH_CHECK_NOFAIL( ... )  (void)(0)

#define CATCH_CHECK_THROWS( ... )  (void)(0)
#define CATCH_CHECK_THROWS_AS( expr, exceptionType ) (void)(0)
#define CATCH_CHECK_THROWS_WITH( expr, matcher )     (void)(0)
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CATCH_CHECK_THROWS_MATCHES( expr, exceptionType, matcher ) (void)(0)
#endif // CATCH_CONFIG_DISABLE_MATCHERS
#define CATCH_CHECK_NOTHROW( ... ) (void)(0)

#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CATCH_CHECK_THAT( arg, matcher )   (void)(0)

#define CATCH_REQUIRE_THAT( arg, matcher ) (void)(0)
#endif // CATCH_CONFIG_DISABLE_MATCHERS

#define CATCH_INFO( msg )    (void)(0)
#define CATCH_WARN( msg )    (void)(0)
#define CATCH_CAPTURE( msg ) (void)(0)

#define CATCH_TEST_CASE( ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))
#define CATCH_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))
#define CATCH_METHOD_AS_TEST_CASE( method, ... )
#define CATCH_REGISTER_TEST_CASE( Function, ... ) (void)(0)
#define CATCH_SECTION( ... )
#define CATCH_FAIL( ... ) (void)(0)
#define CATCH_FAIL_CHECK( ... ) (void)(0)
#define CATCH_SUCCEED( ... ) (void)(0)

#define CATCH_ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))

// "BDD-style" convenience wrappers
#define CATCH_SCENARIO( ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))
#define CATCH_SCENARIO_METHOD( className, ... ) INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ), className )
#define CATCH_GIVEN( desc )
#define CATCH_WHEN( desc )
#define CATCH_AND_WHEN( desc )
#define CATCH_THEN( desc )
#define CATCH_AND_THEN( desc )

// If CATCH_CONFIG_PREFIX_ALL is not defined then the CATCH_ prefix is not required
#else

#define REQUIRE( ... )       (void)(0)
#define REQUIRE_FALSE( ... ) (void)(0)

#define REQUIRE_THROWS( ... ) (void)(0)
#define REQUIRE_THROWS_AS( expr, exceptionType ) (void)(0)
#define REQUIRE_THROWS_WITH( expr, matcher ) (void)(0)
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define REQUIRE_THROWS_MATCHES( expr, exceptionType, matcher ) (void)(0)
#endif // CATCH_CONFIG_DISABLE_MATCHERS
#define REQUIRE_NOTHROW( ... ) (void)(0)

#define CHECK( ... ) (void)(0)
#define CHECK_FALSE( ... ) (void)(0)
#define CHECKED_IF( ... ) if (__VA_ARGS__)
#define CHECKED_ELSE( ... ) if (!(__VA_ARGS__))
#define CHECK_NOFAIL( ... ) (void)(0)

#define CHECK_THROWS( ... )  (void)(0)
#define CHECK_THROWS_AS( expr, exceptionType ) (void)(0)
#define CHECK_THROWS_WITH( expr, matcher ) (void)(0)
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CHECK_THROWS_MATCHES( expr, exceptionType, matcher ) (void)(0)
#endif // CATCH_CONFIG_DISABLE_MATCHERS
#define CHECK_NOTHROW( ... ) (void)(0)

#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CHECK_THAT( arg, matcher ) (void)(0)

#define REQUIRE_THAT( arg, matcher ) (void)(0)
#endif // CATCH_CONFIG_DISABLE_MATCHERS

#define INFO( msg ) (void)(0)
#define WARN( msg ) (void)(0)
#define CAPTURE( msg ) (void)(0)

#define TEST_CASE( ... )  INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))
#define TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))
#define METHOD_AS_TEST_CASE( method, ... )
#define REGISTER_TEST_CASE( Function, ... ) (void)(0)
#define SECTION( ... )
#define FAIL( ... ) (void)(0)
#define FAIL_CHECK( ... ) (void)(0)
#define SUCCEED( ... ) (void)(0)
#define ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))

#endif

#define CATCH_TRANSLATE_EXCEPTION( signature ) INTERNAL_CATCH_TRANSLATE_EXCEPTION_NO_REG( INTERNAL_CATCH_UNIQUE_NAME( catch_internal_ExceptionTranslator ), signature )

// "BDD-style" convenience wrappers
#define SCENARIO( ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ) )
#define SCENARIO_METHOD( className, ... ) INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ), className )

#define GIVEN( desc )
#define WHEN( desc )
#define AND_WHEN( desc )
#define THEN( desc )
#define AND_THEN( desc )

using Catch::Detail::Approx;

#endif

// start catch_reenable_warnings.h


#ifdef __clang__
#    ifdef __ICC // icpc defines the __clang__ macro
#        pragma warning(pop)
#    else
#        pragma clang diagnostic pop
#    endif
#elif defined __GNUC__
#    pragma GCC diagnostic pop
#endif

// end catch_reenable_warnings.h
// end catch.hpp
#endif // TWOBLUECUBES_SINGLE_INCLUDE_CATCH_HPP_INCLUDED