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comparison gcc/testsuite/c-c++-common/Wlogical-not-parentheses-1.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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68:561a7518be6b 111:04ced10e8804
1 /* PR c/77292 */
2 /* { dg-do compile } */
3 /* { dg-options "-Wlogical-not-parentheses" } */
4
5 /* Test that we don't warn if rhs is a comparison or a logical op. */
6
7 int
8 foo (int a, int b)
9 {
10 int r = 0;
11 r += !a == (a < b);
12 r += !a == (a > b);
13 r += !a == (a >= b);
14 r += !a == (a <= b);
15 r += !a == (a != b);
16 r += !a == (a == b);
17 r += !a == (a || b);
18 r += !a == (a && b);
19 r += !a == (!b);
20
21 r += !a == (a ^ b); /* { dg-warning "logical not is only applied to the left hand side of comparison" } */
22 r += !a == (a | b); /* { dg-warning "logical not is only applied to the left hand side of comparison" } */
23 r += !a == (a & b); /* { dg-warning "logical not is only applied to the left hand side of comparison" } */
24
25 return r;
26 }