#include <stdarg.h>
#include <stdio.h>                 /* for printf */
int varfunc (char *buf, int id, ...) {
   va_list tag;
   va_start (tag, id);
   if (id == 0) {
      int arg1;
      char *arg2;
      long arg3;
      arg1 = va_arg (tag, int);
      arg2 = va_arg (tag, char *);
      arg3 = va_arg (tag, long);
   }
   else {
      char *arg1;
      char *arg2;
      long arg3;
      arg1 = va_arg (tag, char *);
      arg2 = va_arg (tag, char *);
      arg3 = va_arg (tag, long);
   }
}