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author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-04-06 01:17:55 +0000 |
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committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-04-06 01:17:55 +0000 |
commit | 39330d6b79c95f67006453156d8405242da04d7b (patch) | |
tree | 12ca9bb4ca84999c676c44799b495825bf9f35c9 | |
parent | bb7a4c2a00f6da4ff63f24b2db2a0aa0c44eb63f (diff) | |
download | ruby-39330d6b79c95f67006453156d8405242da04d7b.tar.gz |
lgamma_r.c: fix at -0.0
* 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]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54496 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
-rw-r--r-- | ChangeLog | 8 | ||||
-rw-r--r-- | math.c | 2 | ||||
-rw-r--r-- | missing/lgamma_r.c | 2 |
3 files changed, 10 insertions, 2 deletions
@@ -1,3 +1,11 @@ +Wed Apr 6 10:17:53 2016 cremno phobia <cremno@mail.ru> + + * 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] + Wed Apr 6 01:22:55 2016 NAKAMURA Usaku <usa@ruby-lang.org> * math.c (ruby_lgamma_r): mswin's lgamma_r also seems to be wrong. @@ -750,7 +750,7 @@ ruby_tgamma(const double d) #define tgamma(d) ruby_tgamma(d) #endif -#if defined _WIN32 || defined __APPLE__ +#if defined __APPLE__ static inline double ruby_lgamma_r(const double d, int *sign) { 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; } |