1 /* Test warning for ordered comparison pointer with null pointer constant. */
2 /* Tested with -pedantic. */
3 /* { dg-do compile } */
4 /* { dg-options "-pedantic" } */
5 extern void z();
6 void *p;
7
f()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)
14 z();
15 if ((void*)0 >= p)
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 }
22