1 /*

     2  * copyright (c) 2010 Michael Niedermayer <michaelni@gmx.at>

     3  *

     4  * This file is part of Libav.

     5  *

     6  * Libav 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  * Libav 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 Libav; 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_FATAL, "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 */