gcc/testsuite/gcc.dg/va-arg-1.c

   1 /* { dg-do compile } */
   2
   3 #include <stdarg.h>
   4
   5 va_list v;
   6 volatile int i;
   7
   8 void foo()
   9 {
  10   i = va_arg(v, char); /* { dg-warning "is promoted to|so you should" "char" } */
  11   i = va_arg(v, short); /* { dg-warning "is promoted to" "short" } */
  12   i = va_arg(v, float); /* { dg-warning "is promoted to" "float" } */
  13 }