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/* 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., 675 Mass Ave,
Cambridge, MA 02139, USA. */
/*
* ANSI 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. */
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