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mpv/osdep/compiler.h
Niklas Haas 8bd0dee531 osdep: rename MP_UNREACHABLE
It was pointed out on IRC that the name is misleading, since the actual
semantics of the macro is to assert first.
2021-11-03 15:15:20 +01:00

33 lines
830 B
C

#ifndef MPV_COMPILER_H
#define MPV_COMPILER_H
#define MP_EXPAND_ARGS(...) __VA_ARGS__
#ifdef __GNUC__
#define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format(printf, a1, a2)))
#define MP_NORETURN __attribute__((noreturn))
#else
#define PRINTF_ATTRIBUTE(a1, a2)
#define MP_NORETURN
#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
#if __STDC_VERSION__ >= 201112L
#include <stdalign.h>
#else
#define alignof(x) (offsetof(struct {char unalign_; x u;}, u))
#endif
#ifdef __GNUC__
#define MP_ASSERT_UNREACHABLE() (assert(!"unreachable"), __builtin_unreachable())
#else
#define MP_ASSERT_UNREACHABLE() (assert(!"unreachable"), abort())
#endif
#endif