If a category can be a source take care of, it wants a constructor, a destructor, and duplicate and/or move functions Enforcement would require some knowledge about what in a very header is supposed to get “exported” to customers and what is there to enable implementation. T, promoted approaches http://johnnyrhtcl.fireblogz.com/6691800/c-homework-help-online-things-to-know-before-you-buy