gcc/testsuite/c-c++-common/Wlogical-op-3.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-Wlogical-op" } */
   3
   4 void
   5 fn1 (int a)
   6 {
   7   const int x = a;
   8   if (x && x) {} /* { dg-warning "logical .and. of equal expressions" } */
   9   if (x && (int) x) {} /* { dg-warning "logical .and. of equal expressions" } */
  10   if ((int) x && x) {} /* { dg-warning "logical .and. of equal expressions" } */
  11   if ((int) x && (int) x) {} /* { dg-warning "logical .and. of equal expressions" } */
  12 }
  13
  14 void
  15 fn2 (int a)
  16 {
  17   const int x = a;
  18   if (x || x) {} /* { dg-warning "logical .or. of equal expressions" } */
  19   if (x || (int) x) {} /* { dg-warning "logical .or. of equal expressions" } */
  20   if ((int) x || x) {} /* { dg-warning "logical .or. of equal expressions" } */
  21   if ((int) x || (int) x) {} /* { dg-warning "logical .or. of equal expressions" } */
  22 }