xref: /illumos-gate/usr/src/head/assert.h (revision b3260c2bc1c739d2a67dad60f61167d668cf54cb)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*	Copyright (c) 1988 AT&T	*/
23 /*	  All Rights Reserved	*/
24 
25 /*
26  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
27  * Copyright 2016 Joyent, Inc.
28  * Copyright 2018 OmniOS Community Edition (OmniOSce) Association.
29  * Copyright 2023 Oxide Computer Company
30  *
31  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
32  * Use is subject to license terms.
33  */
34 
35 /*
36  * Note that the ANSI C Standard requires all headers to be idempotent except
37  * <assert.h> which is explicitly required not to be idempotent (section 4.1.2).
38  * We split up the idempotent sections into <iso/assert_iso.h> and leave the
39  * rest of this that should be impacted by NDEBUG here. There is no header
40  * guard.  This is intentional. For more information on the split, see
41  * <iso/assert_iso.h>.
42  */
43 
44 #include <iso/assert_iso.h>
45 
46 #undef	assert
47 
48 #ifdef	NDEBUG
49 
50 #define	assert(EX) ((void)0)
51 
52 #else
53 
54 #if __STDC_VERSION__ - 0 >= 199901L
55 #define	assert(EX) (void)((EX) || \
56 	(__assert_c99(#EX, __FILE__, __LINE__, __func__), 0))
57 #else
58 #define	assert(EX) (void)((EX) || (__assert(#EX, __FILE__, __LINE__), 0))
59 #endif /* __STDC_VERSION__ - 0 >= 199901L */
60 
61 #endif	/* NDEBUG */
62