gcc/testsuite/gcc.dg/Werror-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-Walways-true -Wattributes -Werror" } */
   3 /* { dg-warning "warnings being treated as errors" "" {target "*-*-*"} 0 } */
   4
   5 /* This is the first in a series of test cases that test the
   6    interaction between -Wfoo, -Werror, -Werror=foo, and #pragma GCC
   7    diagnostic error foo.  This one has all the bits we're testing, the
   8    others are subsets of this one.  */
   9
  10 #pragma GCC diagnostic error "-Walways-true"
  11
  12 void __attribute__((dj)) bar() { }      /* { dg-warning "warning: .* attribute directive ignored" } */
  13
  14 int i;
  15
  16 void
  17 foo ()
  18 {
  19   if (&i)       /* { dg-error "error: .* will always evaluate as 'true'" } */
  20     grill ();
  21 }