view gcc/testsuite/c-c++-common/pr65120.c @ 131:84e7813d76e9

gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children
line wrap: on
line source

/* { dg-do compile } */
/* { dg-options "-Wlogical-not-parentheses" } */

/* Test that we don't warn if rhs is 0 and comparison is == or !=.  */

#ifndef __cplusplus
#define bool _Bool
#endif

bool r;

void
f1 (int a)
{
  r = !a == 0;
  r = !a != 0;
  r = !a == 1;	/* { dg-warning "logical not is only applied to the left hand side of comparison" } */
  r = !a != 1;	/* { dg-warning "logical not is only applied to the left hand side of comparison" } */
}

void
f2 (int a)
{
  r = !a > 0;	/* { dg-warning "logical not is only applied to the left hand side of comparison" } */
  r = !a >= 0;	/* { dg-warning "logical not is only applied to the left hand side of comparison" } */
  r = !a < 0;	/* { dg-warning "logical not is only applied to the left hand side of comparison" } */
  r = !a <= 0;	/* { dg-warning "logical not is only applied to the left hand side of comparison" } */
  r = !a > 1;	/* { dg-warning "logical not is only applied to the left hand side of comparison" } */
  r = !a >= 1;	/* { dg-warning "logical not is only applied to the left hand side of comparison" } */
  r = !a < 1;	/* { dg-warning "logical not is only applied to the left hand side of comparison" } */
  r = !a <= 1;	/* { dg-warning "logical not is only applied to the left hand side of comparison" } */
}