xref: /netbsd-src/tests/usr.bin/xlint/lint1/msg_274.c (revision dcb32fd76a6d98c4a9af231446a80d630943641c)
1 /*	$NetBSD: msg_274.c,v 1.5 2023/08/26 10:43:53 rillig Exp $	*/
2 # 3 "msg_274.c"
3 
4 /* Test for message: C90 or later forbid comparison of %s with %s [274] */
5 
6 /* lint1-flags: -sw -X 351 */
7 
8 void
example(void (* function_pointer)(void),void * void_pointer)9 example(void (*function_pointer)(void), void *void_pointer)
10 {
11 
12 	/* Comparing a function pointer with a null pointer is OK. */
13 	if (function_pointer == (void *)0)
14 		return;
15 
16 	/* Comparing a function pointer with a null pointer is OK. */
17 	if (function_pointer == (const void *)0)
18 		return;
19 
20 	/* expect+1: warning: C90 or later forbid comparison of function pointer with 'void *' [274] */
21 	if (function_pointer == void_pointer)
22 		return;
23 }
24