gcc/testsuite/c-c++-common/pr49706-2.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-Wlogical-not-parentheses" } */
   3
   4 /* Test that we don't warn if both operands of the comparison
   5    are negated.  */
   6
   7 #ifndef __cplusplus
   8 #define bool _Bool
   9 #endif
  10
  11 bool r;
  12
  13 int
  14 same (int a, int b)
  15 {
  16   r = !a == !b;
  17   r = !!a == !!b;
  18   r = !!a == !b;
  19   r = !a == !!b;
  20 }