--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Looping.rb	Thu Feb 17 11:32:17 2011 +0900
@@ -0,0 +1,22 @@
+#!/usr/bin/env ruby
+class Looping
+ def initialize
+    @n0 = 0
+ end
+
+ def calc(n)
+    n1 = @n0 + (1 - 2*(n%2))
+    @n0 = n
+    return n1
+ end
+end
+
+l = Looping.new
+n = 1
+t1 = Time.now
+2147483647.times{ |c|
+ n = l.calc(n)
+}
+t2 = Time.now
+print "#{n}\nRuby\t#{t2 - t1}\n"
+