From 50c1da22df2f499647bc52daab162f2aa0256fbc Mon Sep 17 00:00:00 2001
From: tadf <tadf@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 11 Dec 2008 14:49:54 +0000
Subject: 	* lib/cmath.rb (sqrt): should pass nan or infinity to the
 original 	  method.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@20646 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 lib/cmath.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'lib/cmath.rb')

diff --git a/lib/cmath.rb b/lib/cmath.rb
index 00bcc9087f..9705b277b0 100644
--- a/lib/cmath.rb
+++ b/lib/cmath.rb
@@ -57,7 +57,7 @@ module CMath
 
   def sqrt(z)
     if z.real?
-      if z >= 0
+      if z >= 0 || (Float === z && (z.nan? || z.infinite?))
 	sqrt!(z)
       else
 	Complex(0, sqrt!(-z))
-- 
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