assert.h (2983B) - Raw
1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * (c) UNIX System Laboratories, Inc. 7 * All or some portions of this file are derived from material licensed 8 * to the University of California by American Telephone and Telegraph 9 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 10 * the permission of UNIX System Laboratories, Inc. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)assert.h 8.2 (Berkeley) 1/21/94 37 */ 38 39 #include <sys/cdefs.h> 40 41 /* 42 * Unlike other ANSI header files, <assert.h> may usefully be included 43 * multiple times, with and without NDEBUG defined. 44 */ 45 46 #undef assert 47 #undef _assert 48 49 #ifdef NDEBUG 50 #define assert(e) ((void)0) 51 #define _assert(e) ((void)0) 52 #else 53 #define _assert(e) assert(e) 54 55 #define assert(e) ((e) ? (void)0 : __assert(__func__, __FILE__, \ 56 __LINE__, #e)) 57 #endif /* NDEBUG */ 58 59 #ifndef _ASSERT_H_ 60 #define _ASSERT_H_ 61 62 /* 63 * Static assertions. In principle we could define static_assert for 64 * C++ older than C++11, but this breaks if _Static_assert is 65 * implemented as a macro. 66 * 67 * C++ template parameters may contain commas, even if not enclosed in 68 * parentheses, causing the _Static_assert macro to be invoked with more 69 * than two parameters. 70 */ 71 #if __ISO_C_VISIBLE >= 2011 && !defined(__cplusplus) 72 #define static_assert _Static_assert 73 #endif 74 75 __BEGIN_DECLS 76 void __assert(const char *, const char *, int, const char *) __dead2; 77 __END_DECLS 78 79 #endif /* !_ASSERT_H_ */