From: ts Date: 2004-08-19T21:52:53+09:00 Subject: Re: Inheritance from built-in class >>>>> "N" == Nicolaj Soendberg-Madsen writes: N> puts ta.to_s This line work, but probably you have written puts ta and ruby has not called Time_stamped_array#to_s, no ? N> However this last call seems to invoke to_s in the super class (Array) #puts has a special case for object which respond to #to_ary (like Array) Guy Decoux