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| author | Aurelien Jarno <aurelien@aurel32.net> | 2016-08-02 09:18:59 +0200 |
|---|---|---|
| committer | Aurelien Jarno <aurelien@aurel32.net> | 2016-08-02 09:18:59 +0200 |
| commit | cb7f9d63b921ea1a1cbb4ab377a8484fd5da9a2b (patch) | |
| tree | 43551aa2edac9c7863c3fce087e901f48c45cb1c /sysdeps/alpha/fpu/s_rint.c | |
| parent | 65cc568cf57156e5230db9a061645e54ff028a41 (diff) | |
| download | glibc-cb7f9d63b921ea1a1cbb4ab377a8484fd5da9a2b.tar.gz glibc-cb7f9d63b921ea1a1cbb4ab377a8484fd5da9a2b.tar.xz glibc-cb7f9d63b921ea1a1cbb4ab377a8484fd5da9a2b.zip | |
alpha: fix rint on sNaN input
The alpha version of rint wrongly return sNaN for sNaN input. Fix that by checking for NaN and by returning the input value added with itself in that case. Changelog: * sysdeps/alpha/fpu/s_rint.c (__rint): Add argument with itself when it is a NaN. * sysdeps/alpha/fpu/s_rintf.c (__rintf): Likewise.
Diffstat (limited to 'sysdeps/alpha/fpu/s_rint.c')
| -rw-r--r-- | sysdeps/alpha/fpu/s_rint.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sysdeps/alpha/fpu/s_rint.c b/sysdeps/alpha/fpu/s_rint.c index f33fe72c11..259348afc0 100644 --- a/sysdeps/alpha/fpu/s_rint.c +++ b/sysdeps/alpha/fpu/s_rint.c @@ -23,6 +23,9 @@ double __rint (double x) { + if (isnan (x)) + return x + x; + if (isless (fabs (x), 9007199254740992.0)) /* 1 << DBL_MANT_DIG */ { double tmp1, new_x; |