mpv/osdep/compiler.h

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#ifndef MPV_COMPILER_H
#define MPV_COMPILER_H
#define MP_EXPAND_ARGS(...) __VA_ARGS__
#if defined(__GNUC__) || defined(__clang__)
#define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format(printf, a1, a2)))
#define MP_NORETURN __attribute__((noreturn))
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#define MP_FALLTHROUGH __attribute__((fallthrough))
#define MP_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
#else
#define PRINTF_ATTRIBUTE(a1, a2)
#define MP_NORETURN
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#define MP_FALLTHROUGH do {} while (0)
#define MP_WARN_UNUSED_RESULT
#endif
// Broken crap with __USE_MINGW_ANSI_STDIO
#if defined(__MINGW32__) && defined(__GNUC__) && !defined(__clang__)
#undef PRINTF_ATTRIBUTE
#define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (gnu_printf, a1, a2)))
#endif
#ifdef __GNUC__
#define MP_ASSERT_UNREACHABLE() (assert(!"unreachable"), __builtin_unreachable())
#else
#define MP_ASSERT_UNREACHABLE() (assert(!"unreachable"), abort())
#endif
#endif