1/* Copyright (C) 1991,1992,1994-2001,2003,2004 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, write to the Free 16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 17 02111-1307 USA. */ 18 19/* 20 * ISO C99 Standard: 7.2 Diagnostics <assert.h> 21 */ 22 23#ifdef _ASSERT_H 24 25# undef _ASSERT_H 26# undef assert 27# undef __ASSERT_VOID_CAST 28 29#endif /* assert.h */ 30 31#define _ASSERT_H 1 32#include <features.h> 33 34#if defined __cplusplus && __GNUC_PREREQ (2,95) 35# define __ASSERT_VOID_CAST static_cast<void> 36#else 37# define __ASSERT_VOID_CAST (void) 38#endif 39 40/* void assert (int expression); 41 42 If NDEBUG is defined, do nothing. 43 If not, and EXPRESSION is zero, print an error message and abort. */ 44 45#ifdef NDEBUG 46 47# define assert(expr) (__ASSERT_VOID_CAST (0)) 48 49#else /* Not NDEBUG. */ 50 51__BEGIN_DECLS 52 53/* This prints an "Assertion failed" message and aborts. */ 54extern void __assert(const char *, const char *, unsigned int, const char *) 55 __THROW __attribute__ ((__noreturn__)); 56 57__END_DECLS 58 59# define assert(expr) \ 60 (__ASSERT_VOID_CAST ((expr) ? 0 : \ 61 (__assert (__STRING(expr), __FILE__, __LINE__, __ASSERT_FUNCTION), 0))) 62 63/* Version 2.4 and later of GCC define a magical variable `__PRETTY_FUNCTION__' 64 which contains the name of the function currently being defined. 65 This is broken in G++ before version 2.6. 66 C9x has a similar variable called __func__, but prefer the GCC one since 67 it demangles C++ function names. */ 68# if defined __cplusplus ? __GNUC_PREREQ (2, 6) : __GNUC_PREREQ (2, 4) 69# define __ASSERT_FUNCTION __PRETTY_FUNCTION__ 70# else 71# if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L 72# define __ASSERT_FUNCTION __func__ 73# else 74# define __ASSERT_FUNCTION ((__const char *) 0) 75# endif 76# endif 77 78#endif /* NDEBUG. */ 79