xref: /illumos-gate/usr/src/head/assert.h (revision 5422785d352a2bb398daceab3d1898a8aa64d006)
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  *
28  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
29  * Use is subject to license terms.
30  */
31 
32 #ifndef	_ASSERT_H
33 #define	_ASSERT_H
34 
35 #ifdef	__cplusplus
36 extern "C" {
37 #endif
38 
39 #if __STDC_VERSION__ - 0 >= 199901L
40 extern void __assert_c99(const char *, const char *, int, const char *);
41 #else
42 extern void __assert(const char *, const char *, int);
43 #endif /* __STDC_VERSION__ - 0 >= 199901L */
44 
45 #ifdef	__cplusplus
46 }
47 #endif
48 
49 #endif	/* _ASSERT_H */
50 
51 /*
52  * Note that the ANSI C Standard requires all headers to be idempotent except
53  * <assert.h> which is explicitly required not to be idempotent (section 4.1.2).
54  * Therefore, it is by intent that the header guards (#ifndef _ASSERT_H) do
55  * not span this entire file.
56  */
57 
58 #undef	assert
59 
60 #ifdef	NDEBUG
61 
62 #define	assert(EX) ((void)0)
63 
64 #else
65 
66 #if __STDC_VERSION__ - 0 >= 199901L
67 #define	assert(EX) (void)((EX) || \
68 	(__assert_c99(#EX, __FILE__, __LINE__, __func__), 0))
69 #else
70 #define	assert(EX) (void)((EX) || (__assert(#EX, __FILE__, __LINE__), 0))
71 #endif /* __STDC_VERSION__ - 0 >= 199901L */
72 
73 #endif	/* NDEBUG */
74