gcc/testsuite/c-c++-common/Wbool-operation-1.c

   1 /* PR c/77490 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-Wall" } */
   4
   5 #ifndef __cplusplus
   6 # define bool _Bool
   7 #endif
   8
   9 typedef volatile bool T;
  10 typedef int __attribute__ ((vector_size (4 * sizeof (int)))) v4si;
  11 extern bool foo (void);
  12
  13 int
  14 fn (bool b, bool b2, T b3, int n, v4si v)
  15 {
  16   int r = 0;
  17
  18   r += ~b; /* { dg-warning "on an expression of type bool|on a boolean expression" } */
  19   r += n + ~b; /* { dg-warning "on an expression of type bool|on a boolean expression" } */
  20   r += ~(n == 1); /* { dg-warning "on an expression of type bool|on a boolean expression" } */
  21   r += ~(n || 1); /* { dg-warning "on an expression of type bool|on a boolean expression" } */
  22   r += ~b == 1; /* { dg-warning "on an expression of type bool|on a boolean expression" } */
  23   r += ~(++n, n == 1); /* { dg-warning "on an expression of type bool|on a boolean expression" } */
  24   r += ~(++n, n > 1); /* { dg-warning "on an expression of type bool|on a boolean expression" } */
  25   r += ~(++n, n && 1); /* { dg-warning "on an expression of type bool|on a boolean expression" } */
  26   r += (++n, ~b); /* { dg-warning "on an expression of type bool|on a boolean expression" } */
  27   r += ~b3; /* { dg-warning "on an expression of type bool|on a boolean expression" } */
  28   r += ~foo (); /* { dg-warning "on an expression of type bool|on a boolean expression" } */
  29   r += ~(bool) !1; /* { dg-warning "on an expression of type bool|on a boolean expression" } */
  30
  31   v = ~v;
  32   r += ~(int) b;
  33   r += -b;
  34
  35   return r;
  36 }