1  /* Test -Wunused-value.  Bug 30729.  */
       2  /* { dg-do compile } */
       3  /* { dg-options "-Wunused-value" } */
       4  /* Make sure va_arg does not cause a value computed is not used warning
       5     because it has side effects.   */
       6  #include <stdarg.h>
       7  
       8  int f(int t, ...)
       9  {
      10    va_list a;
      11    va_start (a, t);
      12    va_arg(a, int);/* { dg-bogus "value computed is not used" } */
      13    int t1 = va_arg(a, int);
      14    va_end(a);
      15    return t1;
      16  }
      17  
      18