Libc-391.1.21.tar.gz

[apple/libc.git] / include / assert.h

/*-
 * Copyright (c) 1992, 1993
 *	The Regents of the University of California.  All rights reserved.
 * (c) UNIX System Laboratories, Inc.
 * All or some portions of this file are derived from material licensed
 * to the University of California by American Telephone and Telegraph
 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
 * the permission of UNIX System Laboratories, Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)assert.h	8.2 (Berkeley) 1/21/94
 * $FreeBSD: src/include/assert.h,v 1.4 2002/03/23 17:24:53 imp Exp $
 */

#include <sys/cdefs.h>
#ifdef __cplusplus
#include <stdlib.h>
#endif /* __cplusplus */

/*
 * Unlike other ANSI header files, <assert.h> may usefully be included
 * multiple times, with and without NDEBUG defined.
 */

#undef assert
#undef __assert

#ifdef NDEBUG
#define	assert(e)	((void)0)
#else

#ifndef __GNUC__

__BEGIN_DECLS
#ifndef __cplusplus
void abort(void) __dead2;
#endif /* !__cplusplus */
int  printf(const char * __restrict, ...);
__END_DECLS

#define assert(e)  \
    ((void) ((e) ? 0 : __assert (#e, __FILE__, __LINE__)))
#define __assert(e, file, line) \
    ((void)printf ("%s:%u: failed assertion `%s'\n", file, line, e), abort(), 0)

#else /* __GNUC__ */

__BEGIN_DECLS
void __assert_rtn(const char *, const char *, int, const char *) __dead2;
void __eprintf(const char *, const char *, unsigned, const char *) __dead2;
__END_DECLS

#define __assert(e, file, line) \
    (__eprintf ("%s:%u: failed assertion `%s'\n", file, line, e), 0)

#if __DARWIN_UNIX03
#define	assert(e) \
    (__builtin_expect(!(e), 0) ? __assert_rtn(__func__, __FILE__, __LINE__, #e) : (void)0)
#else /* !__DARWIN_UNIX03 */
#define assert(e)  \
    ((void) (__builtin_expect(!(e), 0) ? __assert (#e, __FILE__, __LINE__) : 0))
#endif /* __DARWIN_UNIX03 */

#endif /* __GNUC__ */
#endif /* NDEBUG */