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| author | lhchavez <lhchavez@lhchavez.com> | 2021-02-23 19:33:34 -0800 |
|---|---|---|
| committer | lhchavez <lhchavez@lhchavez.com> | 2021-08-08 19:08:59 -0700 |
| commit | 231ca4fad36ce7b3dd5d79b599be46ab6001fc18 (patch) | |
| tree | 6616d81c71b873f122134f046073defcc4f659c2 /src/cc-compat.h | |
| parent | 9eb17d460cd681bbc14d56ed8fdf440bc69b5456 (diff) | |
| download | libgit2-231ca4fad36ce7b3dd5d79b599be46ab6001fc18.tar.gz | |
Proof-of-concept for a more aggressive GIT_UNUSED()
This adds a `-Wunused-result`-proof `GIT_UNUSED()`, just to demonstrate
that it works. With this, sortedcache.h is now completely
`GIT_WARN_UNUSED_RESULT`-annotated!
Diffstat (limited to 'src/cc-compat.h')
| -rw-r--r-- | src/cc-compat.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/cc-compat.h b/src/cc-compat.h index de1469da8..21f321124 100644 --- a/src/cc-compat.h +++ b/src/cc-compat.h @@ -43,7 +43,15 @@ # define GIT_ALIGN(x,size) x #endif -#define GIT_UNUSED(x) ((void)(x)) +#if defined(__GNUC__) +# define GIT_UNUSED(x) \ + do { \ + typeof(x) _unused __attribute__((unused)); \ + _unused = (x); \ + } while (0) +#else +# define GIT_UNUSED(x) ((void)(x)) +#endif /* Define the printf format specifier to use for size_t output */ #if defined(_MSC_VER) || defined(__MINGW32__) |