Preprocessor Tricks

This allows you to convert any preprocessor macro value to a string, e.g. for printing.

#include <iostream>

#define MEINMAKRO 1.3.4

#define STRINGIFY(x) #x
#define TOSTRING(x) STRINGIFY(x)

int main()
{
  std::cout << TOSTRING(MEINMAKRO) << std::endl;
  return 0;
}