FFmpeg 7.1.1
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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#ifdef HAVE_AV_CONFIG_H
32# include "config.h"
33#endif
34#include "log.h"
35#include "macros.h"
36
37/**
38 * assert() equivalent, that is always enabled.
39 */
40#define av_assert0(cond) do { \
41 if (!(cond)) { \
42 av_log(NULL, AV_LOG_PANIC, "Assertion %s failed at %s:%d\n", \
43 AV_STRINGIFY(cond), __FILE__, __LINE__); \
44 abort(); \
45 } \
46} while (0)
47
48
49/**
50 * assert() equivalent, that does not lie in speed critical code.
51 * These asserts() thus can be enabled without fearing speed loss.
52 */
53#if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 0
54#define av_assert1(cond) av_assert0(cond)
55#else
56#define av_assert1(cond) ((void)0)
57#endif
58
59
60/**
61 * assert() equivalent, that does lie in speed critical code.
62 */
63#if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 1
64#define av_assert2(cond) av_assert0(cond)
65#define av_assert2_fpu() av_assert0_fpu()
66#else
67#define av_assert2(cond) ((void)0)
68#define av_assert2_fpu() ((void)0)
69#endif
70
71/**
72 * Assert that floating point operations can be executed.
73 *
74 * This will av_assert0() that the cpu is not in MMX state on X86
75 */
76void av_assert0_fpu(void);
77
78#endif /* AVUTIL_AVASSERT_H */
void av_assert0_fpu(void)
Assert that floating point operations can be executed.
Utility Preprocessor macros.