ffmpeg/libavutil/avassert.h

   1 /*
   2  * copyright (c) 2010 Michael Niedermayer <michaelni@gmx.at>
   3  *
   4  * This file is part of FFmpeg.
   5  *
   6  * FFmpeg is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * FFmpeg is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with FFmpeg; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21 /**
  22  * @file
  23  * simple assert() macros that are a bit more flexible than ISO C assert().
  24  * @author Michael Niedermayer <michaelni@gmx.at>
  25  */
  26
  27 #ifndef AVUTIL_AVASSERT_H
  28 #define AVUTIL_AVASSERT_H
  29
  30 #include <stdlib.h>
  31 #include "avutil.h"
  32 #include "log.h"
  33
  34 /**
  35  * assert() equivalent, that is always enabled.
  36  */
  37 #define av_assert0(cond) do {                                           \
  38     if (!(cond)) {                                                      \
  39         av_log(NULL, AV_LOG_PANIC, "Assertion %s failed at %s:%d\n",    \
  40                AV_STRINGIFY(cond), __FILE__, __LINE__);                 \
  41         abort();                                                        \
  42     }                                                                   \
  43 } while (0)
  44
  45
  46 /**
  47  * assert() equivalent, that does not lie in speed critical code.
  48  * These asserts() thus can be enabled without fearing speedloss.
  49  */
  50 #if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 0
  51 #define av_assert1(cond) av_assert0(cond)
  52 #else
  53 #define av_assert1(cond) ((void)0)
  54 #endif
  55
  56
  57 /**
  58  * assert() equivalent, that does lie in speed critical code.
  59  */
  60 #if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 1
  61 #define av_assert2(cond) av_assert0(cond)
  62 #else
  63 #define av_assert2(cond) ((void)0)
  64 #endif
  65
  66 #endif /* AVUTIL_AVASSERT_H */