115 lines
3.4 KiB
C
115 lines
3.4 KiB
C
/* Copyright (C) 1991,1992,1994-1999,2000,2001 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 Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
/*
|
|
* ISO C99 Standard: 7.2 Diagnostics <assert.h>
|
|
*/
|
|
|
|
#ifdef _ASSERT_H
|
|
|
|
# undef _ASSERT_H
|
|
# undef assert
|
|
# undef __ASSERT_VOID_CAST
|
|
|
|
# ifdef __USE_GNU
|
|
# undef assert_perror
|
|
# endif
|
|
|
|
#endif /* assert.h */
|
|
|
|
#define _ASSERT_H 1
|
|
#include <features.h>
|
|
|
|
#if defined __cplusplus && __GNUC_PREREQ (2,95)
|
|
# define __ASSERT_VOID_CAST static_cast<void>
|
|
#else
|
|
# define __ASSERT_VOID_CAST (void)
|
|
#endif
|
|
|
|
/* 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) (__ASSERT_VOID_CAST (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) (__ASSERT_VOID_CAST (0))
|
|
# endif
|
|
|
|
#else /* Not NDEBUG. */
|
|
|
|
__BEGIN_DECLS
|
|
|
|
/* This prints an "Assertion failed" message and aborts. */
|
|
extern void __assert_fail (__const char *__assertion, __const char *__file,
|
|
unsigned int __line, __const char *__function)
|
|
__THROW __attribute__ ((__noreturn__));
|
|
|
|
/* Likewise, but prints the error text for ERRNUM. */
|
|
extern void __assert_perror_fail (int __errnum, __const char *__file,
|
|
unsigned int __line,
|
|
__const char *__function)
|
|
__THROW __attribute__ ((__noreturn__));
|
|
|
|
|
|
/* The following is not at all used here but needed for standard
|
|
compliance. */
|
|
extern void __assert (const char *__assertion, const char *__file, int __line)
|
|
__THROW __attribute__ ((__noreturn__));
|
|
|
|
|
|
__END_DECLS
|
|
|
|
# define assert(expr) \
|
|
(__ASSERT_VOID_CAST ((expr) ? 0 : \
|
|
(__assert_fail (__STRING(expr), __FILE__, __LINE__, \
|
|
__ASSERT_FUNCTION), 0)))
|
|
|
|
# ifdef __USE_GNU
|
|
# define assert_perror(errnum) \
|
|
(__ASSERT_VOID_CAST (!(errnum) ? 0 : \
|
|
(__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.
|
|
C9x has a similar variable called __func__, but prefer the GCC one since
|
|
it demangles C++ function names. */
|
|
# if defined __cplusplus ? __GNUC_PREREQ (2, 6) : __GNUC_PREREQ (2, 4)
|
|
# define __ASSERT_FUNCTION __PRETTY_FUNCTION__
|
|
# else
|
|
# if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
|
|
# define __ASSERT_FUNCTION __func__
|
|
# else
|
|
# define __ASSERT_FUNCTION ((__const char *) 0)
|
|
# endif
|
|
# endif
|
|
|
|
#endif /* NDEBUG. */
|