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comparison gcc/testsuite/gcc.dg/ordered-comparison-4.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 /* Test warning for ordered comparison pointer with null pointer constant. */
2 /* Test with -Wextra. */
3 /* { dg-do compile } */
4 /* { dg-options "-Wextra" } */
5 extern void z();
6 void *p;
7
8 void f() {
9 if (z >= 0) /* { dg-warning "ordered comparison of pointer with" } */
10 z();
11 if (0 >= z) /* { dg-warning "ordered comparison of pointer with" } */
12 z();
13 if (p >= (void*)0) /* { dg-warning "ordered comparison of pointer with null pointer" } */
14 z();
15 if ((void*)0 >= p) /* { dg-warning "ordered comparison of pointer with null pointer" } */
16 z();
17 if (z >= (void*)0) /* { dg-warning "distinct pointer types lacks a cast" } */
18 z();
19 if ((void*)0 >=z) /* { dg-warning "distinct pointer types lacks a cast" } */
20 z();
21 }