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avassert.h
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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 speed loss.
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 */
Convenience header that includes libavutil's core.