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mpv/compat/compiler.h
wm4 5afacef0e4 Add MP_NORETURN and replace av_noreturn uses
av_noreturn is a rather recent addition to libavutil, and defining it
ourselves is trivial and makes playing compatibility games easier.
2012-11-12 20:10:23 +01:00

28 lines
792 B
C

#ifndef MPV_COMPILER_H
#define MPV_COMPILER_H
#define MP_EXPAND_ARGS(...) __VA_ARGS__
#ifdef __GNUC__
#define MP_NORETURN __attribute__((noreturn))
/** Use gcc attribute to check printf fns. a1 is the 1-based index of
* the parameter containing the format, and a2 the index of the first
* argument. **/
#ifdef __MINGW32__
// MinGW maps "printf" to the non-standard MSVCRT functions, even if
// __USE_MINGW_ANSI_STDIO is defined and set to 1. We need to use "gnu_printf",
// which isn't necessarily available on other GCC compatible compilers.
#define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (gnu_printf, a1, a2)))
#else
#define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (printf, a1, a2)))
#endif
#else
#define PRINTF_ATTRIBUTE(a1, a2)
#define MP_NORETURN
#endif
#endif