Issue #12249 has been updated by Benoit Daloze.


Nobuyoshi Nakada wrote:
> Applied in changeset r54492.
> 
> ----------
> math.c: fix tgamma
> 
> * math.c (ruby_tgamma): fix tgamma(-0.0) on mingw.
>   [ruby-core:74817] [Bug #12249]

Thanks nobu!

----------------------------------------
Bug #12249: Math.gamma(-0.0) should return -Infinity
https://bugs.ruby-lang.org/issues/12249#change-57948

* Author: Benoit Daloze
* Status: Closed
* Priority: Normal
* Assignee: 
* ruby -v: ruby 2.2.4p230 (2015-12-16 revision 53155) [i386-mingw32]
* Backport: 2.1: REQUIRED, 2.2: REQUIRED, 2.3: REQUIRED
----------------------------------------
On Windows, Math.gamma(-0.0) returns +Infinity instead of -Infinity,
which is the correct result according to tgamma(3) and the behavior on other platforms.

Is this OK to fix in Ruby?
There is already a similar fix for #10642.



-- 
https://bugs.ruby-lang.org/

Unsubscribe: <mailto:ruby-core-request / ruby-lang.org?subject=unsubscribe>
<http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>