nengel@2: /*
nengel@2:  * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
nengel@2:  *
nengel@2:  * This file is part of FFmpeg.
nengel@2:  *
nengel@2:  * FFmpeg is free software; you can redistribute it and/or
nengel@2:  * modify it under the terms of the GNU Lesser General Public
nengel@2:  * License as published by the Free Software Foundation; either
nengel@2:  * version 2.1 of the License, or (at your option) any later version.
nengel@2:  *
nengel@2:  * FFmpeg is distributed in the hope that it will be useful,
nengel@2:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
nengel@2:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
nengel@2:  * Lesser General Public License for more details.
nengel@2:  *
nengel@2:  * You should have received a copy of the GNU Lesser General Public
nengel@2:  * License along with FFmpeg; if not, write to the Free Software
nengel@2:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
nengel@2:  */
nengel@2: 
nengel@2: /**
nengel@2:  * @file
nengel@2:  * Macro definitions for various function/variable attributes
nengel@2:  */
nengel@2: 
nengel@2: #ifndef AVUTIL_ATTRIBUTES_H
nengel@2: #define AVUTIL_ATTRIBUTES_H
nengel@2: 
nengel@2: #ifdef __GNUC__
nengel@2: #    define AV_GCC_VERSION_AT_LEAST(x,y) (__GNUC__ > x || __GNUC__ == x && __GNUC_MINOR__ >= y)
nengel@2: #else
nengel@2: #    define AV_GCC_VERSION_AT_LEAST(x,y) 0
nengel@2: #endif
nengel@2: 
nengel@2: #ifndef av_always_inline
nengel@2: #if AV_GCC_VERSION_AT_LEAST(3,1)
nengel@2: #    define av_always_inline __attribute__((always_inline)) inline
nengel@2: #else
nengel@2: #    define av_always_inline inline
nengel@2: #endif
nengel@2: #endif
nengel@2: 
nengel@2: #ifndef av_noinline
nengel@2: #if AV_GCC_VERSION_AT_LEAST(3,1)
nengel@2: #    define av_noinline __attribute__((noinline))
nengel@2: #else
nengel@2: #    define av_noinline
nengel@2: #endif
nengel@2: #endif
nengel@2: 
nengel@2: #ifndef av_pure
nengel@2: #if AV_GCC_VERSION_AT_LEAST(3,1)
nengel@2: #    define av_pure __attribute__((pure))
nengel@2: #else
nengel@2: #    define av_pure
nengel@2: #endif
nengel@2: #endif
nengel@2: 
nengel@2: #ifndef av_const
nengel@2: #if AV_GCC_VERSION_AT_LEAST(2,6)
nengel@2: #    define av_const __attribute__((const))
nengel@2: #else
nengel@2: #    define av_const
nengel@2: #endif
nengel@2: #endif
nengel@2: 
nengel@2: #ifndef av_cold
nengel@2: #if (!defined(__ICC) || __ICC > 1110) && AV_GCC_VERSION_AT_LEAST(4,3)
nengel@2: #    define av_cold __attribute__((cold))
nengel@2: #else
nengel@2: #    define av_cold
nengel@2: #endif
nengel@2: #endif
nengel@2: 
nengel@2: #ifndef av_flatten
nengel@2: #if (!defined(__ICC) || __ICC > 1110) && AV_GCC_VERSION_AT_LEAST(4,1)
nengel@2: #    define av_flatten __attribute__((flatten))
nengel@2: #else
nengel@2: #    define av_flatten
nengel@2: #endif
nengel@2: #endif
nengel@2: 
nengel@2: #ifndef attribute_deprecated
nengel@2: #if AV_GCC_VERSION_AT_LEAST(3,1)
nengel@2: #    define attribute_deprecated __attribute__((deprecated))
nengel@2: #else
nengel@2: #    define attribute_deprecated
nengel@2: #endif
nengel@2: #endif
nengel@2: 
nengel@2: #ifndef av_unused
nengel@2: #if defined(__GNUC__)
nengel@2: #    define av_unused __attribute__((unused))
nengel@2: #else
nengel@2: #    define av_unused
nengel@2: #endif
nengel@2: #endif
nengel@2: 
nengel@2: #ifndef av_uninit
nengel@2: #if defined(__GNUC__) && !defined(__ICC)
nengel@2: #    define av_uninit(x) x=x
nengel@2: #else
nengel@2: #    define av_uninit(x) x
nengel@2: #endif
nengel@2: #endif
nengel@2: 
nengel@2: #ifdef __GNUC__
nengel@2: #    define av_builtin_constant_p __builtin_constant_p
nengel@2: #else
nengel@2: #    define av_builtin_constant_p(x) 0
nengel@2: #endif
nengel@2: 
nengel@2: #endif /* AVUTIL_ATTRIBUTES_H */