msg_159.c revision 1.4 
1/*	$NetBSD: msg_159.c,v 1.4 2022/07/06 21:13:13 rillig Exp $	*/
2# 3 "msg_159.c"
3
4// Test for message: assignment in conditional context [159]
5
6/* lint1-extra-flags: -h */
7
8const char *
9example(int a, int b)
10{
11
12	if (a == b)
13		return "comparison, not parenthesized";
14
15	if ((a == b))
16		return "comparison, parenthesized";
17
18	if (
19# 20 "msg_159.c" 3 4
20	    (a == b)
21# 22 "msg_159.c"
22	    )
23		return "comparison, parenthesized, from system header";
24
25	/* expect+1: warning: assignment in conditional context [159] */
26	if (a = b)
27		return "assignment, not parenthesized";
28
29	/*
30	 * XXX: GCC has the convention that an assignment that is
31	 * parenthesized is intended as an assignment.
32	 */
33	/* expect+1: warning: assignment in conditional context [159] */
34	if ((a = b))
35		return "assignment, parenthesized";
36
37	if ((a = b) != 0)
38		return "explicit comparison after assignment";
39
40	return "other";
41}
42