The first is a deeper question -- besides inheritance, there's delegation, aggregation, and reimplementation (think mock objects) that can make two classes have equivalent interfaces. I'd like some way to mark this equivalence *without* having to inherit from an abstract base class and I wish that interface equivalence were checked before inheritance, as per Luke's idea.
Sounds like you want Java-style "interfaces" to me.
Regards,
David
-- David Wheeler AIM: dwTheory [EMAIL PROTECTED] ICQ: 15726394 http://kineticode.com/ Yahoo!: dew7e Jabber: [EMAIL PROTECTED] Kineticode. Setting knowledge in motion.[sm]
