107 lines
3.6 KiB
C++
107 lines
3.6 KiB
C++
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#ifndef __BLI_ASSERT_H__
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#define __BLI_ASSERT_H__
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/** \file BLI_assert.h
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* \ingroup bli
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*
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* Defines:
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* - #BLI_assert
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* - #BLI_STATIC_ASSERT
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* - #BLI_STATIC_ASSERT_ALIGN
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef NDEBUG /* for BLI_assert */
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#include <stdio.h>
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#endif
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/* BLI_assert(), default only to print
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* for aborting need to define WITH_ASSERT_ABORT
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*/
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/* For 'abort' only. */
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#include <stdlib.h>
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#ifndef NDEBUG
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# include "BLI_system.h"
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/* _BLI_ASSERT_PRINT_POS */
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# if defined(__GNUC__)
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# define _BLI_ASSERT_PRINT_POS(a) \
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fprintf(stderr, "BLI_assert failed: %s:%d, %s(), at \'%s\'\n", __FILE__, __LINE__, __func__, #a)
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# elif defined(_MSC_VER)
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# define _BLI_ASSERT_PRINT_POS(a) \
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fprintf(stderr, "BLI_assert failed: %s:%d, %s(), at \'%s\'\n", __FILE__, __LINE__, __FUNCTION__, #a)
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# else
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# define _BLI_ASSERT_PRINT_POS(a) \
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fprintf(stderr, "BLI_assert failed: %s:%d, at \'%s\'\n", __FILE__, __LINE__, #a)
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# endif
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/* _BLI_ASSERT_ABORT */
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# ifdef WITH_ASSERT_ABORT
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# define _BLI_ASSERT_ABORT abort
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# else
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# define _BLI_ASSERT_ABORT() (void)0
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# endif
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/* BLI_assert */
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# define BLI_assert(a) \
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(void)((!(a)) ? ((BLI_system_backtrace(stderr), _BLI_ASSERT_PRINT_POS(a), _BLI_ASSERT_ABORT(), NULL)) : NULL)
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#else
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# define BLI_assert(a) ((void)0)
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#endif
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/* C++ can't use _Static_assert, expects static_assert() but c++0x only,
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* Coverity also errors out. */
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#if (!defined(__cplusplus)) && \
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(!defined(__COVERITY__)) && \
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(defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 406)) /* gcc4.6+ only */
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# define BLI_STATIC_ASSERT(a, msg) __extension__ _Static_assert(a, msg);
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#else
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/* Code adapted from http://www.pixelbeat.org/programming/gcc/static_assert.html */
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/* Note we need the two concats below because arguments to ## are not expanded, so we need to
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* expand __LINE__ with one indirection before doing the actual concatenation. */
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# define _BLI_ASSERT_CONCAT_(a, b) a##b
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# define _BLI_ASSERT_CONCAT(a, b) _BLI_ASSERT_CONCAT_(a, b)
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/* These can't be used after statements in c89. */
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# if defined(__COUNTER__) /* MSVC */
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# define BLI_STATIC_ASSERT(a, msg) \
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; enum { _BLI_ASSERT_CONCAT(static_assert_, __COUNTER__) = 1 / (int)(!!(a)) };
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# else /* older gcc, clang... */
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/* This can't be used twice on the same line so ensure if using in headers
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* that the headers are not included twice (by wrapping in #ifndef...#endif)
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* Note it doesn't cause an issue when used on same line of separate modules
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* compiled with gcc -combine -fwhole-program. */
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# define BLI_STATIC_ASSERT(a, msg) \
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; enum { _BLI_ASSERT_CONCAT(assert_line_, __LINE__) = 1 / (int)(!!(a)) };
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# endif
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#endif
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#define BLI_STATIC_ASSERT_ALIGN(st, align) \
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BLI_STATIC_ASSERT((sizeof(st) % (align) == 0), "Structure must be strictly aligned")
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#ifdef __cplusplus
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}
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#endif
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#endif /* __BLI_ASSERT_H__ */
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