diff options
Diffstat (limited to 'src/gcc.h')
| -rw-r--r-- | src/gcc.h | 41 |
1 files changed, 41 insertions, 0 deletions
@@ -32,6 +32,9 @@ */ #if GCC_CHECK_VERSION(3,0) +# define gcc_const __attribute__((const)) +# define gcc_pure __attribute__((pure)) +# define gcc_malloc __attribute__((malloc)) # define gcc_must_check __attribute__ ((warn_unused_result)) # define gcc_packed __attribute__ ((packed)) /* these are very useful for type checking */ @@ -41,11 +44,21 @@ # define gcc_fprintf__ __attribute__ ((format(printf,4,5))) # define gcc_scanf __attribute__ ((format(scanf,1,2))) # define gcc_used __attribute__ ((used)) +# define gcc_unused __attribute__((unused)) +# define gcc_warn_unused_result __attribute__((warn_unused_result)) /* # define inline inline __attribute__ ((always_inline)) */ # define gcc_noinline __attribute__ ((noinline)) # define gcc_nonnull(...) __attribute__((nonnull(__VA_ARGS__))) # define gcc_nonnull_all __attribute__((nonnull)) + +# define gcc_likely(x) __builtin_expect (!!(x), 1) +# define gcc_unlikely(x) __builtin_expect (!!(x), 0) + #else +# define gcc_unused +# define gcc_const +# define gcc_pure +# define gcc_malloc # define gcc_must_check # define gcc_packed # define gcc_printf @@ -54,10 +67,38 @@ # define gcc_fprintf__ # define gcc_scanf # define gcc_used +# define gcc_unused +# define gcc_warn_unused_result /* # define inline */ # define gcc_noinline # define gcc_nonnull(...) # define gcc_nonnull_all + +# define gcc_likely(x) (x) +# define gcc_unlikely(x) (x) + +#endif + +#ifdef __cplusplus + +#ifdef __GNUC__ +/* "__restrict__" is a GCC extension for C++ */ +#define restrict __restrict__ +#else +/* disable it on other compilers */ +#define restrict +#endif + +#if !defined(__clang__) && defined(__GNUC__) && !GCC_CHECK_VERSION(4,6) +#error Your gcc version is too old. MPD requires gcc 4.6 or newer. +#endif + +/* support for C++11 "override" was added in gcc 4.7 */ +#if !defined(__clang__) && defined(__GNUC__) && !GCC_CHECK_VERSION(4,7) +#define override +#define final +#endif + #endif #endif /* MPD_GCC_H */ |