gcc/testsuite/gcc.dg/Wint-in-bool-context-4.c

   1 /* PR c/102245 */
   2 /* { dg-options "-Wint-in-bool-context" } */
   3 /* { dg-do compile } */
   4
   5 _Bool test1(_Bool x)
   6 {
   7   return !(x << 0);  /* { dg-warning "boolean context" } */
   8 }
   9
  10 _Bool test2(_Bool x)
  11 {
  12   return !(x << 1);  /* { dg-warning "boolean context" } */
  13 }
  14
  15 _Bool test3(_Bool x, int y)
  16 {
  17   return !(x << y);  /* { dg-warning "boolean context" } */
  18 }
  19
  20 _Bool test4(int x, int y)
  21 {
  22   return !(x << y);  /* { dg-warning "boolean context" } */
  23 }
  24
  25 _Bool test5(int x, int y)
  26 {
  27   return !((x << y) << 0);  /* { dg-warning "boolean context" } */
  28 }
  29
  30 int test6(_Bool x)
  31 {
  32   int v = 0;
  33   return (v & ~1L) | (1L & (x << 0));  /* { dg-bogus "boolean context" } */
  34 }
  35