diff options
-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; } |