c - printf macro for compiler with and without support for VARIADIC -


please me writing printf macro 1 compiler supports variadic , not.

for instance: 

#ifdef have__va_args   printf macro   #else   printf macro

an solution variadic can lock this.

#define my_printf(_format, ...) { \         printf(_format, __va_args__); \     }

and if have compiler without variadic, have implement function variable argument list.

#include <stdarg.h> #include <std.h> int my_printf(const char *format, ...) {   va_list ap;   va_start(ap, dst);   return vprintf(format, ap); }

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