From: Marc-Andre Lafortune <redmine@...>
Date: 2009-10-10T14:53:33+09:00
Subject: [ruby-core:26028] [Bug #2189] Math.atanh(1) & Math.atanh(-1) should not raise an error

Bug #2189: Math.atanh(1) & Math.atanh(-1) should not raise an error
http://redmine.ruby-lang.org/issues/show/2189

Author: Marc-Andre Lafortune
Status: Closed, Priority: Normal
Category: core, Target version: 1.9.2
ruby -v: ruby 1.9.2dev (2009-10-09 trunk 25274) [x86_64-darwin10.0.0]

Regression caught by RubySpec.

$ rubydev -v -e 'p Math.atanh(1)'
ruby 1.9.2dev (2009-10-09 trunk 25274) [x86_64-darwin10.0.0]
-e:1:in `atanh': Numerical argument out of domain - atanh (Errno::EDOM)
	from -e:1:in `<main>'
$ ruby187 -v -e 'p Math.atanh(1)'
ruby 1.8.7 (2008-08-11 patchlevel 72) [universal-darwin10.0]
Infinity

Fixed in r25279


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