gcc/testsuite/gcc.dg/Werror-3.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-Walways-true -Wattributes" } */
   3
   4 /* Make sure the command line option enables the warning.  */
   5
   6 void __attribute__((dj)) bar() { }      /* { dg-warning "warning: .* attribute directive ignored" } */
   7
   8 int i;
   9
  10 void
  11 foo ()
  12 {
  13   if (&i)       /* { dg-warning "warning: .* will always evaluate as 'true'" } */
  14     grill ();
  15 }