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| author | Rich Felker <dalias@aerifal.cx> | 2012-03-30 23:41:43 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2012-03-30 23:41:43 -0400 |
| commit | 4dbd94112ff74064554054b5ff27a7af547e4899 (patch) | |
| tree | 645719500ef91a28a6dc3d6350f82f538e4887a0 | |
| parent | 93a18a15e4428d4fe3f239081e0218ac0c69f458 (diff) | |
| download | musl-4dbd94112ff74064554054b5ff27a7af547e4899.tar.gz musl-4dbd94112ff74064554054b5ff27a7af547e4899.tar.bz2 musl-4dbd94112ff74064554054b5ff27a7af547e4899.tar.xz musl-4dbd94112ff74064554054b5ff27a7af547e4899.zip | |
optimize signbit macro
| -rw-r--r-- | include/math.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/math.h b/include/math.h index 8791bba8..ff62cb7c 100644 --- a/include/math.h +++ b/include/math.h @@ -77,8 +77,8 @@ int __signbitf(float); int __signbitl(long double); #define signbit(x) ( \ - sizeof(x) == sizeof(float) ? !!(__FLOAT_BITS(x) & 0x80000000) : \ - sizeof(x) == sizeof(double) ? !!(__DOUBLE_BITS(x) & (__uint64_t)1<<63) : \ + sizeof(x) == sizeof(float) ? (int)(__FLOAT_BITS(x)>>31) : \ + sizeof(x) == sizeof(double) ? (int)(__DOUBLE_BITS(x)>>63) : \ __signbitl(x) ) #define isunordered(x,y) (isnan((x)) ? ((void)(y),1) : isnan((y))) |