avr-g++ -mmcu=atmega8 -I /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1 -I /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/x86_64-pc-linux-gnu -I /usr/include  lib/main_test.o adc_test.cpp -o tests && ./tests
In file included from /usr/include/wchar.h:30,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/cwchar:44,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/bits/postypes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/iosfwd:40,
                 from lib/catch.hpp:266,
                 from adc_test.cpp:5:
/usr/include/bits/floatn.h:74:70: error: unknown machine mode '__TC__'
 typedef _Complex float __cfloat128 __attribute__ ((__mode__ (__TC__)));
                                                                      ^
/usr/include/bits/floatn.h:86:9: error: '__float128' does not name a type; did you mean '__cfloat128'?
 typedef __float128 _Float128;
         ^~~~~~~~~~
         __cfloat128
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/bits/move.h:55,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/bits/stl_pair.h:59,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/bits/stl_algobase.h:64,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/string:40,
                 from lib/catch.hpp:267,
                 from adc_test.cpp:5:
/usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/type_traits:347:39: error: '__float128' was not declared in this scope
     struct __is_floating_point_helper<__float128>
                                       ^~~~~~~~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/type_traits:347:39: note: suggested alternative: '__cfloat128'
     struct __is_floating_point_helper<__float128>
                                       ^~~~~~~~~~
                                       __cfloat128
/usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/type_traits:347:49: error: template argument 1 is invalid
     struct __is_floating_point_helper<__float128>
                                                 ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/bits/char_traits.h:501,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/string:40,
                 from lib/catch.hpp:267,
                 from adc_test.cpp:5:
/usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/cstdint:77:11: error: 'typedef short unsigned int uint_least16_t' conflicts with a previous declaration
   using ::uint_least16_t;
           ^~~~~~~~~~~~~~
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/bits/move.h:55,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/bits/stl_pair.h:59,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/bits/stl_algobase.h:64,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/string:40,
                 from lib/catch.hpp:267,
                 from adc_test.cpp:5:
/usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/type_traits:44:33: note: previous declaration 'typedef unsigned int std::uint_least16_t'
   typedef __UINT_LEAST16_TYPE__ uint_least16_t;
                                 ^~~~~~~~~~~~~~
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/bits/char_traits.h:501,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/string:40,
                 from lib/catch.hpp:267,
                 from adc_test.cpp:5:
/usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/cstdint:78:11: error: 'typedef unsigned int uint_least32_t' conflicts with a previous declaration
   using ::uint_least32_t;
           ^~~~~~~~~~~~~~
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/bits/move.h:55,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/bits/stl_pair.h:59,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/bits/stl_algobase.h:64,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/string:40,
                 from lib/catch.hpp:267,
                 from adc_test.cpp:5:
/usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/type_traits:45:33: note: previous declaration 'typedef long unsigned int std::uint_least32_t'
   typedef __UINT_LEAST32_TYPE__ uint_least32_t;
                                 ^~~~~~~~~~~~~~
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/cstdlib:77,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/ext/string_conversions.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/bits/basic_string.h:6361,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/string:52,
                 from lib/catch.hpp:267,
                 from adc_test.cpp:5:
/usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/bits/std_abs.h:101:3: error: '__float128' does not name a type; did you mean '__cfloat128'?
   __float128
   ^~~~~~~~~~
   __cfloat128
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/../../../../include/c++/8.1.1/cmath:45,
                 from lib/catch.hpp:2391,
                 from adc_test.cpp:5:
/usr/include/bits/mathcalls-helper-functions.h:21:36: error: '_Float128' was not declared in this scope
 __MATHDECL_1 (int, __fpclassify,, (_Mdouble_ __value))
                                    ^~~~~~~~~
/usr/include/bits/mathcalls-helper-functions.h:21:36: note: suggested alternative: '_Float32x'
/usr/include/bits/mathcalls-helper-functions.h:25:33: error: '_Float128' was not declared in this scope
 __MATHDECL_1 (int, __signbit,, (_Mdouble_ __value))
                                 ^~~~~~~~~
/usr/include/bits/mathcalls-helper-functions.h:25:33: note: suggested alternative: '_Float32x'
/usr/include/bits/mathcalls-helper-functions.h:30:31: error: '_Float128' was not declared in this scope
 __MATHDECL_1 (int, __isinf,, (_Mdouble_ __value)) __attribute__ ((__const__));
                               ^~~~~~~~~
/usr/include/bits/mathcalls-helper-functions.h:30:31: note: suggested alternative: '_Float32x'
/usr/include/bits/mathcalls-helper-functions.h:33:32: error: '_Float128' was not declared in this scope
 __MATHDECL_1 (int, __finite,, (_Mdouble_ __value)) __attribute__ ((__const__));
                                ^~~~~~~~~
/usr/include/bits/mathcalls-helper-functions.h:33:32: note: suggested alternative: '_Float32x'
/usr/include/bits/mathcalls-helper-functions.h:36:31: error: '_Float128' was not declared in this scope
 __MATHDECL_1 (int, __isnan,, (_Mdouble_ __value)) __attribute__ ((__const__));
                               ^~~~~~~~~
/usr/include/bits/mathcalls-helper-functions.h:36:31: note: suggested alternative: '_Float32x'
/usr/include/bits/mathcalls-helper-functions.h:39:33: error: '_Float128' was not declared in this scope
 __MATHDECL_1 (int, __iseqsig,, (_Mdouble_ __x, _Mdouble_ __y));
                                 ^~~~~~~~~
/usr/include/bits/mathcalls-helper-functions.h:39:33: note: suggested alternative: '_Float32x'
/usr/include/bits/mathcalls-helper-functions.h:39:48: error: '_Float128' was not declared in this scope
 __MATHDECL_1 (int, __iseqsig,, (_Mdouble_ __x, _Mdouble_ __y));
                                                ^~~~~~~~~
/usr/include/bits/mathcalls-helper-functions.h:39:48: note: suggested alternative: '_Float32x'
/usr/include/bits/mathcalls-helper-functions.h:39:1: error: expression list treated as compound expression in initializer [-fpermissive]
 __MATHDECL_1 (int, __iseqsig,, (_Mdouble_ __x, _Mdouble_ __y));
 ^~~~~~~~~~~~
/usr/include/bits/mathcalls-helper-functions.h:42:37: error: '_Float128' was not declared in this scope
 __MATHDECL_1 (int, __issignaling,, (_Mdouble_ __value))
                                     ^~~~~~~~~
/usr/include/bits/mathcalls-helper-functions.h:42:37: note: suggested alternative: '_Float32x'
adc_test.cpp:8:9: error: expected constructor, destructor, or type conversion before '(' token
 SCENERIO("ADC is working properly", "[ADC]") {
         ^