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libavutil/tablegen.h
55 строк
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Hendrik Leppkes
libavutil/tablegen: add missing math.h include
04 дек 2015, 16:49
04 дек 2015, 16:49
d6b988b
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/* * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** * @file * Compatibility libm for table generation files */ #ifndef AVUTIL_TABLEGEN_H #define AVUTIL_TABLEGEN_H #include <math.h> // we lack some functions on all host platforms, and we don't care about // performance and/or strict ISO C semantics as it's performed at build time static inline double ff_cbrt(double x) { return x < 0 ? -pow(-x, 1.0 / 3.0) : pow(x, 1.0 / 3.0); } #define cbrt ff_cbrt static inline double ff_rint(double x) { return x >= 0 ? floor(x + 0.5) : ceil(x - 0.5); } #define rint ff_rint static inline long long ff_llrint(double x) { return rint(x); } #define llrint ff_llrint static inline long ff_lrint(double x) { return rint(x); } #define lrint ff_lrint #endif /* AVUTIL_TABLEGEN_H */