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/* ****************************************************************************
* assert.h -- Assertions.
* Copyright (C) 2017 Thomas "Cakeisalie5" Touhey <thomas@touhey.fr>
*
* This file is part of the 'all/core' module,
* in libcarrot, an experimental modular libc project.
*
* This file 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 3 of the License, or (at your option)
* any later version.
*
* This file 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 Lesser Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this file. If not, see <http://www.gnu.org/licenses/>.
* ************************************************************************* */
#include <cdefs.h>
#include <stddef.h>
/* Here is the nice way to get the function name. */
#if defined(__cplusplus) ? __GNUC_PREREQ(2, 6) : __GNUC_PREREQ(2, 4)
# define __ASSERT_FUNC __PRETTY_FUNCTION__
#elif __USE_C99
# define __ASSERT_FUNC __func__
#else
# define __ASSERT_FUNC NULL
#endif
/* ************************************************************************* */
/* Main functions */
/* ************************************************************************* */
__BEGIN_DECLS
extern void __noreturn __assert_fail _OF((const char *__assertion,
const char *__file, unsigned int __line, const char *__function)) __THROW;
__END_DECLS
/* ************************************************************************* */
/* Macro definition */
/* ************************************************************************* */
#ifdef assert
# undef assert
#endif
#ifdef NDEBUG
# define assert(_IGN) ((void)0)
#else
# define assert(_EXPR) \
((_EXPR) \
? (void)0 \
: __assert_fail(#_EXPR, __FILE__, __LINE__, __ASSERT_FUNC))
#endif
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