* enum.c (enum_min_by): new method Enum#min_by. added Enum#max_by

  as well.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@6629 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 7 insertions, 1 deletions

diff --git a/lib/date.rb b/lib/date.rb
index b50e987852..b8c15a420a 100644
--- a/lib/date.rb
+++ b/lib/date.rb
@@ -711,7 +711,13 @@ class Date
 	  alias_method :__#{id.to_i}__, :#{id.to_s}
 	  private :__#{id.to_i}__
 	  def #{id.to_s}(*args, &block)
-	    (@__#{id.to_i}__ ||= [__#{id.to_i}__(*args, &block)])[0]
+            if @__#{id.to_i}__
+              @__#{id.to_i}__
+            elsif ! self.frozen?
+	      @__#{id.to_i}__ ||= __#{id.to_i}__(*args, &block)
+            else
+               __#{id.to_i}__(*args, &block)
+            end
 	  end
 	end;
       end