From: ts Date: 2002-05-11T21:01:55+09:00 Subject: Re: freeze and exception safety >>>>> "P" == Paul Brannan writes: P> I have implemented a simple unfreeze in an extension. Be carefull with this because one day a stupid person like me will try to use your extension and I'll write class Container def self.new [[1, 2].freeze, 3] end end and I'll ask you why your extension unfreeze my container :-) Guy Decoux