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| author | Niklas Haas <git@haasn.dev> | 2021-10-25 10:49:11 +0200 |
|---|---|---|
| committer | Niklas Haas <github-daiK1o@haasn.dev> | 2021-11-03 14:09:27 +0100 |
| commit | c704824b45731f2400355ebe8ae0c576e19dc072 (patch) | |
| tree | c9410eb47d37fa0b0d5d43af34e6998f3114d1b6 /osdep/compiler.h | |
| parent | 210767169191e19c70f9c7b63528b0d629ddbcfa (diff) | |
| download | mpv-c704824b45731f2400355ebe8ae0c576e19dc072.tar.bz2 mpv-c704824b45731f2400355ebe8ae0c576e19dc072.tar.xz | |
osdep: add MP_UNREACHABLE
This seems to work on gcc, clang and mingw as-is, but I made it
conditional on __GNUC__ just in case, even though I can't figure out
which compilers we care about that don't export this define.
Also replace all instances of assert(0) in the code by MP_UNREACHABLE(),
which is a strict improvement.
Diffstat (limited to 'osdep/compiler.h')
| -rw-r--r-- | osdep/compiler.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/osdep/compiler.h b/osdep/compiler.h index 7c9f859f3a..471fc2ffd1 100644 --- a/osdep/compiler.h +++ b/osdep/compiler.h @@ -23,4 +23,10 @@ #define alignof(x) (offsetof(struct {char unalign_; x u;}, u)) #endif +#ifdef __GNUC__ +#define MP_UNREACHABLE() (assert(!"unreachable"), __builtin_unreachable()) +#else +#define MP_UNREACHABLE() (assert(!"unreachable"), abort()) +#endif + #endif |