Variadic Templates - Transformations

#include <iostream>

// Variadic Templates - Transform Example (see link below for description)
// Author: Ascend4nt
// https://ascend4nt.wordpress.com/2013/01/03/variadic-templates-transformations/

inline void dummy(...) {}

int reportBoolState(bool bVal)
{
    std::cout << bVal << "  ";
    return 0;
}

template <typename... Args>
int reportBoolState(bool bVal, const Args&... args)
{
    std::cout << bVal << "  ";
    reportBoolState(args...);
    return 0;
}

template <typename... Args>
void bool_variadic(const Args&... args)
{
    std::cout << "\nbool states (in FORWARD order):\n" << std::boolalpha;
    //dummy(reportBoolState(args)...);  // this'd be reverse order (right-to-left)
    reportBoolState(args...);
    std::cout << std::endl;
}

template <typename T>
bool boolizer(const T& val)
{
    std::cout <<  val << "  ";
    return (val != 0);
}

template <typename... Args>
void TestVariadic(const Args&... args)
{
    std::cout << "vals (in reverse):" << std::endl;
    bool_variadic(boolizer(args)...);
}

int main ()
{
  int p = 5;
  TestVariadic(0, 4, 'a', '\0', p, 0, "string");

  return 0;
}