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| author | nagachika <nagachika@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-04-18 17:46:05 +0000 |
|---|---|---|
| committer | nagachika <nagachika@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-04-18 17:46:05 +0000 |
| commit | e824b05b3e0c01905d38af7d9c669ddc55cfcfb3 (patch) | |
| tree | fa7d3e0e89bc9a638258607e3cdb2e6f937a545a /missing | |
| parent | b7c90baf074156456e2ba5216c492e8b79b8bc3c (diff) | |
merge revision(s) 54492,54494,54495,54496,54499,54503: [Backport #12249]
* math.c (ruby_tgamma): fix tgamma(-0.0) on mingw.
[ruby-core:74817] [Bug #12249]
* math.c (ruby_lgamma_r): fix lgamma(-0.0) on mingw and OSX.
* math.c (ruby_lgamma_r): mswin's lgamma_r also seems to be wrong.
cf. [Bug #12249]
* math.c (ruby_lgamma_r): missing/lgamma_r.c is used on Windows,
since msvcrt does not provide it.
* missing/lgamma_r.c (lgamma_r): fix lgamma(-0.0).
[ruby-core:74823] [Bug #12249]
* configure.in (rb_cv_lgamma_r_m0): check if lgamma_r(-0.0)
returns negative infinity. [Bug #12249]
* math.c (ruby_lgamma_r): define by the configured result.
* configure.in (rb_cv_lgamma_r_m0): fix the condition for
lgamma_r(-0.0). [Bug #12249]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_3@54643 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'missing')
| -rw-r--r-- | missing/lgamma_r.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/missing/lgamma_r.c b/missing/lgamma_r.c index 6d2f38f40c..01066d2930 100644 --- a/missing/lgamma_r.c +++ b/missing/lgamma_r.c @@ -66,7 +66,7 @@ lgamma_r(double x, int *signp) double i, f, s; f = modf(-x, &i); if (f == 0.0) { /* pole error */ - *signp = 1; + *signp = signbit(x) ? -1 : 1; errno = ERANGE; return HUGE_VAL; } |