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26#ifndef AVUTIL_ATTRIBUTES_H
27#define AVUTIL_ATTRIBUTES_H
30# define AV_GCC_VERSION_AT_LEAST(x,y) (__GNUC__ > (x) || __GNUC__ == (x) && __GNUC_MINOR__ >= (y))
31# define AV_GCC_VERSION_AT_MOST(x,y) (__GNUC__ < (x) || __GNUC__ == (x) && __GNUC_MINOR__ <= (y))
33# define AV_GCC_VERSION_AT_LEAST(x,y) 0
34# define AV_GCC_VERSION_AT_MOST(x,y) 0
38# define AV_HAS_BUILTIN(x) __has_builtin(x)
40# define AV_HAS_BUILTIN(x) 0
43#ifndef av_always_inline
44#if AV_GCC_VERSION_AT_LEAST(3,1)
45# define av_always_inline __attribute__((always_inline)) inline
46#elif defined(_MSC_VER)
47# define av_always_inline __forceinline
49# define av_always_inline inline
53#ifndef av_extern_inline
54#if defined(__ICL) && __ICL >= 1210 || defined(__GNUC_STDC_INLINE__)
55# define av_extern_inline extern inline
57# define av_extern_inline inline
61#if AV_GCC_VERSION_AT_LEAST(3,4)
62# define av_warn_unused_result __attribute__((warn_unused_result))
64# define av_warn_unused_result
67#if AV_GCC_VERSION_AT_LEAST(3,1)
68# define av_noinline __attribute__((noinline))
69#elif defined(_MSC_VER)
70# define av_noinline __declspec(noinline)
75#if AV_GCC_VERSION_AT_LEAST(3,1) || defined(__clang__)
76# define av_pure __attribute__((pure))
81#if AV_GCC_VERSION_AT_LEAST(2,6) || defined(__clang__)
82# define av_const __attribute__((const))
87#if AV_GCC_VERSION_AT_LEAST(4,3) || defined(__clang__)
88# define av_cold __attribute__((cold))
93#if AV_GCC_VERSION_AT_LEAST(4,1) && !defined(__llvm__)
94# define av_flatten __attribute__((flatten))
99#if AV_GCC_VERSION_AT_LEAST(3,1)
100# define attribute_deprecated __attribute__((deprecated))
101#elif defined(_MSC_VER)
102# define attribute_deprecated __declspec(deprecated)
104# define attribute_deprecated
112#ifndef AV_NOWARN_DEPRECATED
113#if AV_GCC_VERSION_AT_LEAST(4,6) || defined(__clang__)
114# define AV_NOWARN_DEPRECATED(code) \
115 _Pragma("GCC diagnostic push") \
116 _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") \
118 _Pragma("GCC diagnostic pop")
119#elif defined(_MSC_VER)
120# define AV_NOWARN_DEPRECATED(code) \
121 __pragma(warning(push)) \
122 __pragma(warning(disable : 4996)) \
124 __pragma(warning(pop))
126# define AV_NOWARN_DEPRECATED(code) code
130#if defined(__GNUC__) || defined(__clang__)
131# define av_unused __attribute__((unused))
141#if AV_GCC_VERSION_AT_LEAST(3,1) || defined(__clang__)
142# define av_used __attribute__((used))
147#if AV_GCC_VERSION_AT_LEAST(3,3) || defined(__clang__)
148# define av_alias __attribute__((may_alias))
153#if (defined(__GNUC__) || defined(__clang__)) && !defined(__INTEL_COMPILER)
154# define av_uninit(x) x=x
156# define av_uninit(x) x
159#if defined(__GNUC__) || defined(__clang__)
160# define av_builtin_constant_p __builtin_constant_p
161# define av_printf_format(fmtpos, attrpos) __attribute__((__format__(__printf__, fmtpos, attrpos)))
163# define av_builtin_constant_p(x) 0
164# define av_printf_format(fmtpos, attrpos)
167#if AV_GCC_VERSION_AT_LEAST(2,5) || defined(__clang__)
168# define av_noreturn __attribute__((noreturn))