/* Copyright (C) 1991, 92, 94, 95, 96 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* * ISO C Standard: 4.2 DIAGNOSTICS <assert.h> */ #ifdef _ASSERT_H #undef _ASSERT_H #undef assert #endif /* assert.h */ #define _ASSERT_H 1 #include <features.h> /* void assert (int expression); If NDEBUG is defined, do nothing. If not, and EXPRESSION is zero, print an error message and abort. */ #ifdef NDEBUG #define assert(expr) ((void) 0) /* void assert_perror (int errnum); If NDEBUG is defined, do nothing. If not, and ERRNUM is not zero, print an error message with the error text for ERRNUM and abort. (This is a GNU extension.) */ #ifdef __USE_GNU #define assert_perror(errnum) ((void) 0) #endif #else /* Not NDEBUG. */ #include <sys/cdefs.h> __BEGIN_DECLS /* This prints an "Assertion failed" message and aborts. */ extern void __assert_fail __P ((__const char *__assertion, __const char *__file, unsigned int __line, __const char *__function)) __attribute__ ((__noreturn__)); /* Likewise, but prints the error text for ERRNUM. */ extern void __assert_perror_fail __P ((int __errnum, __const char *__file, unsigned int __line, __const char *__function)) __attribute__ ((__noreturn__)); __END_DECLS #define assert(expr) \ ((void) ((expr) || \ (__assert_fail (__STRING(expr), \ __FILE__, __LINE__, __ASSERT_FUNCTION), 0))) #ifdef __USE_GNU #define assert_perror(errnum) \ ((void) ((errnum) && (__assert_perror_fail ((errnum), \ __FILE__, __LINE__, \ __ASSERT_FUNCTION), 0))) #endif /* Version 2.4 and later of GCC define a magical variable `__PRETTY_FUNCTION__' which contains the name of the function currently being defined. This is broken in G++ before version 2.6. */ #if (!defined (__GNUC__) || __GNUC__ < 2 || \ __GNUC_MINOR__ < (defined (__cplusplus) ? 6 : 4)) #define __ASSERT_FUNCTION ((__const char *) 0) #else #define __ASSERT_FUNCTION __PRETTY_FUNCTION__ #endif #endif /* NDEBUG. */