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