include/assert.h

   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  *
  30  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
  31  * Use is subject to license terms.
  32  */
  33
  34 #ifndef _ASSERT_H
  35 #define _ASSERT_H
  36
  37 #ifdef  __cplusplus
  38 extern "C" {
  39 #endif
  40
  41 #if __STDC_VERSION__ - 0 >= 199901L
  42 extern void __assert_c99(const char *, const char *, int, const char *);
  43 #else
  44 extern void __assert(const char *, const char *, int);
  45 #endif /* __STDC_VERSION__ - 0 >= 199901L */
  46
  47 /*
  48  * In C11 the static_assert macro is always defined, unlike the assert macro.
  49  */
  50 #if __STDC_VERSION__ - 0 >= 201112L && !defined(__cplusplus)
  51 #define static_assert   _Static_assert
  52 #endif /* __STDC_VERSION - 0 >= 201112L && !defined(__cplusplus) */
  53
  54 #ifdef  __cplusplus
  55 }
  56 #endif
  57
  58 #endif  /* _ASSERT_H */
  59
  60 /*
  61  * Note that the ANSI C Standard requires all headers to be idempotent except
  62  * <assert.h> which is explicitly required not to be idempotent (section 4.1.2).
  63  * Therefore, it is by intent that the header guards (#ifndef _ASSERT_H) do
  64  * not span this entire file.
  65  */
  66
  67 #undef  assert
  68
  69 #ifdef  NDEBUG
  70
  71 #define assert(EX) ((void)0)
  72
  73 #else
  74
  75 #if __STDC_VERSION__ - 0 >= 199901L
  76 #define assert(EX) (void)((EX) || \
  77         (__assert_c99(#EX, __FILE__, __LINE__, __func__), 0))
  78 #else
  79 #define assert(EX) (void)((EX) || (__assert(#EX, __FILE__, __LINE__), 0))
  80 #endif /* __STDC_VERSION__ - 0 >= 199901L */
  81
  82 #endif  /* NDEBUG */