From 7f7cb6f00b12bd8ec660e576e3d34aa609062897 Mon Sep 17 00:00:00 2001
From: tadf <tadf@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 28 Sep 2008 00:41:42 +0000
Subject: 	* lib/mathn.rb ({Fixnum,Bignum,Float}#**): may produce complex
 	  value.

git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@19603 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 lib/mathn.rb | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

(limited to 'lib')

diff --git a/lib/mathn.rb b/lib/mathn.rb
index 401b162b4..486d48729 100644
--- a/lib/mathn.rb
+++ b/lib/mathn.rb
@@ -61,6 +61,16 @@ class Fixnum
   remove_method :/
   alias / quo
 
+  alias power! **
+
+  def ** (other)
+    if self < 0 && other.round != other
+      Complex(self, 0.0) ** other
+    else
+      power!(other)
+    end
+  end
+
   def_canon *(instance_methods - Object.methods - [:canon])
 
 end
@@ -69,6 +79,16 @@ class Bignum
   remove_method :/
   alias / quo
 
+  alias power! **
+
+  def ** (other)
+    if self < 0 && other.round != other
+      Complex(self, 0.0) ** other
+    else
+      power!(other)
+    end
+  end
+
   def_canon *(instance_methods - Object.methods - [:canon])
 
 end
@@ -261,4 +281,14 @@ class Float
 
   def_canon *(instance_methods - Object.methods - [:canon])
 
+  alias power! **
+
+  def ** (other)
+    if self < 0 && other.round != other
+      Complex(self, 0.0) ** other
+    else
+      power!(other)
+    end
+  end
+
 end
-- 
cgit