gcc/testsuite/c-c++-common/pr62199.c

   1 /* PR c++/62199 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-Wlogical-not-parentheses" } */
   4
   5 int r;
   6 void
   7 foo (int a)
   8 {
   9   r = a > 0 || !a >= 2; /* { dg-warning "19:logical not is only applied to the left hand side of comparison" } */
  10   r = !a || a == 10;
  11   r = !a && !a < 4; /* { dg-warning "16:logical not is only applied to the left hand side of comparison" } */
  12   r = !a > 0 && a < 6; /* { dg-warning "10:logical not is only applied to the left hand side of comparison" } */
  13   r = a + (!a < 12); /* { dg-warning "15:logical not is only applied to the left hand side of comparison" } */
  14   r = a == 7 || !a < 12; /* { dg-warning "20:logical not is only applied to the left hand side of comparison" } */
  15   r = (a == 7 * a > 0) || !a < 2; /* { dg-warning "30:logical not is only applied to the left hand side of comparison" } */
  16   r = (1 > !a) || (!42 > a); /* { dg-warning "24:logical not is only applied to the left hand side of comparison" } */
  17   r = (!5 > a); /* { dg-warning "11:logical not is only applied to the left hand side of comparison" } */
  18   r = (!0 > a); /* { dg-warning "11:logical not is only applied to the left hand side of comparison" } */
  19   r = (!-5 > a); /* { dg-warning "12:logical not is only applied to the left hand side of comparison" } */
  20   r = (!(5 + 3) > a); /* { dg-warning "17:logical not is only applied to the left hand side of comparison" } */
  21   r = (!(5 - a) > a); /* { dg-warning "17:logical not is only applied to the left hand side of comparison" } */
  22 }