xref: /illumos-gate/usr/src/head/assert.h (revision 8dc6d85a)
17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate  * CDDL HEADER START
37c478bd9Sstevel@tonic-gate  *
47c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
57c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
67c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
77c478bd9Sstevel@tonic-gate  * with the License.
87c478bd9Sstevel@tonic-gate  *
97c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
117c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
127c478bd9Sstevel@tonic-gate  * and limitations under the License.
137c478bd9Sstevel@tonic-gate  *
147c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
157c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
177c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
187c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
197c478bd9Sstevel@tonic-gate  *
207c478bd9Sstevel@tonic-gate  * CDDL HEADER END
217c478bd9Sstevel@tonic-gate  */
227c478bd9Sstevel@tonic-gate /*	Copyright (c) 1988 AT&T	*/
23b4203d75SMarcel Telka /*	  All Rights Reserved	*/
247c478bd9Sstevel@tonic-gate 
257c478bd9Sstevel@tonic-gate /*
26ba3594baSGarrett D'Amore  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
27fc2512cfSRobert Mustacchi  * Copyright 2016 Joyent, Inc.
28*8dc6d85aSAndy Fiddaman  * Copyright 2018 OmniOS Community Edition (OmniOSce) Association.
29ba3594baSGarrett D'Amore  *
307c478bd9Sstevel@tonic-gate  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
317c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
327c478bd9Sstevel@tonic-gate  */
337c478bd9Sstevel@tonic-gate 
347c478bd9Sstevel@tonic-gate #ifndef	_ASSERT_H
357c478bd9Sstevel@tonic-gate #define	_ASSERT_H
367c478bd9Sstevel@tonic-gate 
377c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
387c478bd9Sstevel@tonic-gate extern "C" {
397c478bd9Sstevel@tonic-gate #endif
407c478bd9Sstevel@tonic-gate 
417c478bd9Sstevel@tonic-gate #if __STDC_VERSION__ - 0 >= 199901L
427c478bd9Sstevel@tonic-gate extern void __assert_c99(const char *, const char *, int, const char *);
437c478bd9Sstevel@tonic-gate #else
447c478bd9Sstevel@tonic-gate extern void __assert(const char *, const char *, int);
457c478bd9Sstevel@tonic-gate #endif /* __STDC_VERSION__ - 0 >= 199901L */
467c478bd9Sstevel@tonic-gate 
47fc2512cfSRobert Mustacchi /*
48fc2512cfSRobert Mustacchi  * In C11 the static_assert macro is always defined, unlike the assert macro.
49fc2512cfSRobert Mustacchi  */
50*8dc6d85aSAndy Fiddaman #if __STDC_VERSION__ - 0 >= 201112L && !defined(__cplusplus)
51fc2512cfSRobert Mustacchi #define	static_assert	_Static_assert
52*8dc6d85aSAndy Fiddaman #endif /* __STDC_VERSION - 0 >= 201112L && !defined(__cplusplus) */
53fc2512cfSRobert Mustacchi 
547c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
557c478bd9Sstevel@tonic-gate }
567c478bd9Sstevel@tonic-gate #endif
577c478bd9Sstevel@tonic-gate 
587c478bd9Sstevel@tonic-gate #endif	/* _ASSERT_H */
597c478bd9Sstevel@tonic-gate 
607c478bd9Sstevel@tonic-gate /*
617c478bd9Sstevel@tonic-gate  * Note that the ANSI C Standard requires all headers to be idempotent except
627c478bd9Sstevel@tonic-gate  * <assert.h> which is explicitly required not to be idempotent (section 4.1.2).
637c478bd9Sstevel@tonic-gate  * Therefore, it is by intent that the header guards (#ifndef _ASSERT_H) do
647c478bd9Sstevel@tonic-gate  * not span this entire file.
657c478bd9Sstevel@tonic-gate  */
667c478bd9Sstevel@tonic-gate 
677c478bd9Sstevel@tonic-gate #undef	assert
687c478bd9Sstevel@tonic-gate 
697c478bd9Sstevel@tonic-gate #ifdef	NDEBUG
707c478bd9Sstevel@tonic-gate 
717c478bd9Sstevel@tonic-gate #define	assert(EX) ((void)0)
727c478bd9Sstevel@tonic-gate 
737c478bd9Sstevel@tonic-gate #else
747c478bd9Sstevel@tonic-gate 
757c478bd9Sstevel@tonic-gate #if __STDC_VERSION__ - 0 >= 199901L
767c478bd9Sstevel@tonic-gate #define	assert(EX) (void)((EX) || \
777c478bd9Sstevel@tonic-gate 	(__assert_c99(#EX, __FILE__, __LINE__, __func__), 0))
787c478bd9Sstevel@tonic-gate #else
797c478bd9Sstevel@tonic-gate #define	assert(EX) (void)((EX) || (__assert(#EX, __FILE__, __LINE__), 0))
807c478bd9Sstevel@tonic-gate #endif /* __STDC_VERSION__ - 0 >= 199901L */
817c478bd9Sstevel@tonic-gate 
827c478bd9Sstevel@tonic-gate #endif	/* NDEBUG */
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