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| author | Rich Felker <dalias@aerifal.cx> | 2012-03-20 19:51:11 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2012-03-20 19:51:11 -0400 |
| commit | 58bf74850f5f7286dc290aa22ad982f50620a1c8 (patch) | |
| tree | ad1d29dbdd40b13381f860f8900f8b0673dfa689 /src/math/nearbyintf.c | |
| parent | upgrade to latest upstream TRE regex code (0.8.0) (diff) | |
| parent | nearbyint optimization (only clear inexact when necessary) (diff) | |
| download | grovel-58bf74850f5f7286dc290aa22ad982f50620a1c8.tar.gz grovel-58bf74850f5f7286dc290aa22ad982f50620a1c8.tar.xz | |
Merge remote branch 'nsz/master'
Diffstat (limited to 'src/math/nearbyintf.c')
| -rw-r--r-- | src/math/nearbyintf.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/src/math/nearbyintf.c b/src/math/nearbyintf.c index 07df8f54..39c3d73b 100644 --- a/src/math/nearbyintf.c +++ b/src/math/nearbyintf.c @@ -1,11 +1,17 @@ #include <fenv.h> #include <math.h> -float nearbyintf(float x) { - fenv_t e; +float nearbyintf(float x) +{ +#ifdef FE_INEXACT + int e; - fegetenv(&e); + e = fetestexcept(FE_INEXACT); +#endif x = rintf(x); - fesetenv(&e); +#ifdef FE_INEXACT + if (!e) + feclearexcept(FE_INEXACT); +#endif return x; } |