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 #define av_assert2_fpu() av_assert0_fpu() 63 #else 64 #define av_assert2(cond) ((void)0) 65 #define av_assert2_fpu() ((void)0) 66 #endif 67 68 /** 69 * Assert that floating point operations can be executed. 70 * 71 * This will av_assert0() that the cpu is not in MMX state on X86 72 */ 73 void av_assert0_fpu(void); 74 75 #endif /* AVUTIL_AVASSERT_H */ 76