IABSD.fr/src/include/assert.h

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• Author : millert
  Date : 2020-09-06 12:57:25
  Hash : 9f1f2f9e
  Message : Use __STDC_VERSION__ instead of __ISO_C_VISIBLE to guard _Static_assert. We need to test what the compiler supports, not what the C library provides. This prevents static_assert from being defined when compiling with the in-tree gcc (4.2.1) which does not support _Static_assert.

• include/assert.h

• /*	$OpenBSD: assert.h,v 1.15 2020/09/06 12:57:25 millert Exp $	*/
  /*	$NetBSD: assert.h,v 1.6 1994/10/26 00:55:44 cgd Exp $	*/
  
  /*-
   * 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. 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
   */
  
  /*
   * Unlike other ANSI header files, <assert.h> may usefully be included
   * multiple times, with and without NDEBUG defined.
   */
  
  #include <sys/cdefs.h>
  
  #undef assert
  #undef _assert
  
  #ifdef NDEBUG
  # define	assert(e)	((void)0)
  # define	_assert(e)	((void)0)
  #else
  # define	_assert(e)	assert(e)
  # if __ISO_C_VISIBLE >= 1999
  #  define	assert(e)	((e) ? (void)0 : __assert2(__FILE__, __LINE__, __func__, #e))
  # else
  #  define	assert(e)	((e) ? (void)0 : __assert(__FILE__, __LINE__, #e))
  # endif
  #endif
  
  #ifndef _ASSERT_H_
  #define _ASSERT_H_
  
  #if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112
  #define static_assert _Static_assert
  #endif
  
  __BEGIN_DECLS
  __dead void __assert(const char *, int, const char *);
  __dead void __assert2(const char *, int, const char *, const char *);
  __END_DECLS
  #endif