xref: /illumos-gate/usr/src/head/assert.h (revision b4203d75)
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	*/
23*b4203d75SMarcel 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.
28ba3594baSGarrett D'Amore  *
297c478bd9Sstevel@tonic-gate  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
307c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
317c478bd9Sstevel@tonic-gate  */
327c478bd9Sstevel@tonic-gate 
337c478bd9Sstevel@tonic-gate #ifndef	_ASSERT_H
347c478bd9Sstevel@tonic-gate #define	_ASSERT_H
357c478bd9Sstevel@tonic-gate 
367c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
377c478bd9Sstevel@tonic-gate extern "C" {
387c478bd9Sstevel@tonic-gate #endif
397c478bd9Sstevel@tonic-gate 
407c478bd9Sstevel@tonic-gate #if __STDC_VERSION__ - 0 >= 199901L
417c478bd9Sstevel@tonic-gate extern void __assert_c99(const char *, const char *, int, const char *);
427c478bd9Sstevel@tonic-gate #else
437c478bd9Sstevel@tonic-gate extern void __assert(const char *, const char *, int);
447c478bd9Sstevel@tonic-gate #endif /* __STDC_VERSION__ - 0 >= 199901L */
457c478bd9Sstevel@tonic-gate 
46fc2512cfSRobert Mustacchi /*
47fc2512cfSRobert Mustacchi  * In C11 the static_assert macro is always defined, unlike the assert macro.
48fc2512cfSRobert Mustacchi  */
49fc2512cfSRobert Mustacchi #if __STDC_VERSION__ - 0 >= 201112L
50fc2512cfSRobert Mustacchi #define	static_assert	_Static_assert
51fc2512cfSRobert Mustacchi #endif /* __STDC_VERSION - 0 >= 201112L */
52fc2512cfSRobert Mustacchi 
537c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
547c478bd9Sstevel@tonic-gate }
557c478bd9Sstevel@tonic-gate #endif
567c478bd9Sstevel@tonic-gate 
577c478bd9Sstevel@tonic-gate #endif	/* _ASSERT_H */
587c478bd9Sstevel@tonic-gate 
597c478bd9Sstevel@tonic-gate /*
607c478bd9Sstevel@tonic-gate  * Note that the ANSI C Standard requires all headers to be idempotent except
617c478bd9Sstevel@tonic-gate  * <assert.h> which is explicitly required not to be idempotent (section 4.1.2).
627c478bd9Sstevel@tonic-gate  * Therefore, it is by intent that the header guards (#ifndef _ASSERT_H) do
637c478bd9Sstevel@tonic-gate  * not span this entire file.
647c478bd9Sstevel@tonic-gate  */
657c478bd9Sstevel@tonic-gate 
667c478bd9Sstevel@tonic-gate #undef	assert
677c478bd9Sstevel@tonic-gate 
687c478bd9Sstevel@tonic-gate #ifdef	NDEBUG
697c478bd9Sstevel@tonic-gate 
707c478bd9Sstevel@tonic-gate #define	assert(EX) ((void)0)
717c478bd9Sstevel@tonic-gate 
727c478bd9Sstevel@tonic-gate #else
737c478bd9Sstevel@tonic-gate 
747c478bd9Sstevel@tonic-gate #if __STDC_VERSION__ - 0 >= 199901L
757c478bd9Sstevel@tonic-gate #define	assert(EX) (void)((EX) || \
767c478bd9Sstevel@tonic-gate 	(__assert_c99(#EX, __FILE__, __LINE__, __func__), 0))
777c478bd9Sstevel@tonic-gate #else
787c478bd9Sstevel@tonic-gate #define	assert(EX) (void)((EX) || (__assert(#EX, __FILE__, __LINE__), 0))
797c478bd9Sstevel@tonic-gate #endif /* __STDC_VERSION__ - 0 >= 199901L */
807c478bd9Sstevel@tonic-gate 
817c478bd9Sstevel@tonic-gate #endif	/* NDEBUG */
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