gcc/testsuite/c-c++-common/Wlogical-not-parentheses-3.c

   1 /* PR c/77423 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-Wlogical-not-parentheses" } */
   4
   5 #ifndef __cplusplus
   6 # define bool _Bool
   7 #endif
   8
   9 int
  10 f (int a, bool b, bool c)
  11 {
  12   int r = 0;
  13
  14   r += !a == (b | c);
  15   r += !a == (b ^ c);
  16   r += !a == (b & c);
  17   r += !a == ~b;
  18   r += !a == ~(int) b;
  19   r += !a == ((b & c) | c);
  20   r += !a == ((b & c) | (b ^ c));
  21   r += !a == (int) (b ^ c);
  22   r += !a == (int) ~b;
  23   r += !a == ~~b;
  24   r += !a == ~(b | c);
  25   r += !a == ~(b | (a == 1));
  26   r += !a == ~(a == 1);
  27
  28   r += !a == ((b & c) | (b ^ a)); /* { dg-warning "logical not is only applied to the left hand side of comparison" } */
  29
  30   return r;
  31 }