Added Fixnum#even? and Fixnum#odd?

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@1094 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 20 insertions, 0 deletions

diff --git a/activesupport/lib/active_support/core_ext/fixnum/even_odd.rb b/activesupport/lib/active_support/core_ext/fixnum/even_odd.rb
new file mode 100644
index 0000000000..1fa6b95846
--- /dev/null
+++ b/activesupport/lib/active_support/core_ext/fixnum/even_odd.rb
@@ -0,0 +1,20 @@
+module ActiveSupport #:nodoc:
+  module CoreExtensions #:nodoc:
+    module Fixnum #:nodoc:
+      # For checking if a fixnum is even or odd. 
+      # * 1.even? # => false
+      # * 1.odd?  # => true
+      # * 2.even? # => true
+      # * 2.odd? # => false
+      module EvenOdd
+        def even?
+          self % 2 == 0
+        end
+        
+        def odd?
+          !even?
+        end
+      end
+    end
+  end
+end