gcc/testsuite/gcc.dg/pr60036.c

   1 /* PR c/60036 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-Wconversion" } */
   4
   5 extern int fn (void);
   6
   7 void
   8 foo (int i)
   9 {
  10   unsigned int f = 9;
  11
  12   /* Don't warn on these.  */
  13   f += fn () || i;
  14   f += fn () && i;
  15   f += ! fn ();
  16   f -= fn () == i;
  17   f |= fn () != i;
  18   f &= fn () < i;
  19   f ^= fn () > i;
  20   f &= fn () <= i;
  21   f ^= fn () >= i;
  22
  23   /* But warn on the following.  */
  24   f += fn (); /* { dg-warning "conversion" } */
  25   f += fn () | i; /* { dg-warning "conversion" } */
  26   f += fn () & i; /* { dg-warning "conversion" } */
  27   f += fn () ^ i; /* { dg-warning "conversion" } */
  28 }