demos/ansi-c/print-c99.c

   1 #include <stdarg.h>
   2 #include <stdio.h>
   3
   4 void _echo(char *s, ... ) { va_list ap; for(va_start(ap,s);s;s=va_arg(ap,char *)) fputs(s,stdout); va_end(ap); }
   5 #define print(...) _echo(__VA_ARGS__,"\n",NULL)
   6 #define echo(...) _echo(__VA_ARGS__,NULL)
   7
   8 int main(void)
   9 {
  10  echo("Hello ","world","! ");
  11  print("Hello ","world","! ");
  12 }