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https://github.com/freebsd/freebsd-src.git
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Faraz Vahedi
8d29d24296
To avoid any sort of POLA violation, this commit restores old guards and defines the C23 feature test macros in addition to them. This is to close off whole class of possible breakage, rather than patching it case by case. Reported by: dim Reviewed by: dim, dteske, fuz Approved by: dim, dteske (mentor), fuz (mentor) MFC after: 1 month Differential Revision: https://reviews.freebsd.org/D58911
98 lines
3.6 KiB
C
98 lines
3.6 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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* (c) UNIX System Laboratories, Inc.
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* All or some portions of this file are derived from material licensed
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* to the University of California by American Telephone and Telegraph
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* Co. or Unix System Laboratories, Inc. and are reproduced herein with
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* the permission of UNIX System Laboratories, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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/*
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* Unlike other ANSI header files, <assert.h> may usefully be included
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* multiple times, with and without NDEBUG defined.
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*/
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#undef assert
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#undef _assert
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#undef __assert_unreachable
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#ifdef NDEBUG
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#define assert(...) ((void)0)
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#define _assert(...) ((void)0)
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#if __BSD_VISIBLE
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#define __assert_unreachable() __unreachable()
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#endif /* __BSD_VISIBLE */
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#else
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#ifdef __cplusplus
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#define assert(...) ((void)(bool(__VA_ARGS__) ? ((void)0) : \
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__assert(__func__, __FILE__, __LINE__, \
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#__VA_ARGS__)))
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#else
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#define assert(...) ((void)sizeof(((_Bool(*)(_Bool))0)(__VA_ARGS__)), \
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(__VA_ARGS__) ? (void)0 : \
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__assert(__func__, __FILE__, \
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__LINE__, #__VA_ARGS__))
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#endif /* __cplusplus */
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#define _assert(...) assert(__VA_ARGS__)
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#if __BSD_VISIBLE
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#define __assert_unreachable() assert(0 && "unreachable segment reached")
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#endif /* __BSD_VISIBLE */
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#endif /* NDEBUG */
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#ifndef _ASSERT_H_
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#define _ASSERT_H_
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#define __STDC_VERSION_ASSERT_H__ 202311L
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/*
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* Static assertions. In principle we could define static_assert for
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* C++ older than C++11, but this breaks if _Static_assert is
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* implemented as a macro.
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*
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* C++ template parameters may contain commas, even if not enclosed in
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* parentheses, causing the _Static_assert macro to be invoked with more
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* than two parameters.
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*
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* C23 defines static_assert and its obsolescent alternative spelling,
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* _Static_assert, as keywords.
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*/
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#if __ISO_C_VISIBLE >= 2011 && !defined(__cplusplus) && \
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__STDC_VERSION__ < 202311L
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#define static_assert _Static_assert
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#endif
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__BEGIN_DECLS
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void __assert(const char *, const char *, int, const char *) __dead2;
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__END_DECLS
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#endif /* !_ASSERT_H_ */
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