Mercurial > hg > CbC > CbC_gcc

view gcc/testsuite/c-c++-common/pr65120.c @ 158:494b0b89df80 default tip

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
...
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 18:13:55 +0900
parents 84e7813d76e9
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" } */
}