#include <stdio.h>
#include <stdlib.h>

#ifdef DEBUG

#define debug(String, ...) printf(String, __VA_ARGS__)
#define ERROR(Text) printf("ERROR: File: %s Function: %s Line: %d. %s\n", __FILE__, __func__, __LINE__, Text)

#else

#define debug(String, ...)
#define ERROR(Text)

#endif

int main(int argc, const char *argv[])
{
  int foo = 42;
  debug("%d\n", foo);

  if(foo != 30)
    {
      // Logging the Error 
	ERROR("Something went wrong!");
    }

  
}