Path: utzoo!attcan!uunet!cimshop!davidm From: cimshop!davidm@uunet.UU.NET (David S. Masterson) Newsgroups: comp.object Subject: Re: ??Bidirectional Inheritence?? Message-ID: Date: 15 Oct 90 06:11:35 GMT References: <6957@uwm.edu> Sender: news@cimshop.UUCP Distribution: comp Organization: Consilium Inc., Mountain View, California. Lines: 17 In-reply-to: ctumey@csd4.csd.uwm.edu's message of 14 Oct 90 23:22:43 GMT In article <6957@uwm.edu> ctumey@csd4.csd.uwm.edu (Carol T Tumey) writes: Seriously, it seeems that inheriting characteristic up *and* down the network would result in a loss of control of the system and defeats some of the basic concepts of OOP such as encapsulation, not to mention inheritence. If you think about, is this not the end result of virtual functions in C++? Through pure virtual functions, it becomes possible to ask an instance of a parent class object something about its child (like asking the object what its type is). -- ==================================================================== David Masterson Consilium, Inc. uunet!cimshop!davidm Mtn. View, CA 94043 ==================================================================== "If someone thinks they know what I said, then I didn't say it!"