From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=0.2 required=5.0 tests=BAYES_00,INVALID_MSGID, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: fac41,9a0ff0bffdf63657 X-Google-Attributes: gidfac41,public X-Google-Thread: f43e6,9a0ff0bffdf63657 X-Google-Attributes: gidf43e6,public X-Google-Thread: 103376,4b06f8f15f01a568 X-Google-Attributes: gid103376,public X-Google-Thread: 1108a1,9a0ff0bffdf63657 X-Google-Attributes: gid1108a1,public From: Loryn Jenkins Subject: Re: Module size (was Re: Software landmines) Date: 1998/09/05 Message-ID: <35F0BC05.61919244@s054.aone.net.au>#1/1 X-Deja-AN: 388066839 Content-Transfer-Encoding: 7bit References: <6snlos$bh6$1@hirame.wwa.com> <904912650snz@nezumi.demon.co.uk> <35EFFB78.21BBBED6@ksc.nasa.gov> <6spfvf$nun$1@hirame.wwa.com> <6spojo$8ir$1@uuneo.neosoft.com> <35f58f68.94311132@news.erols.com> X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii X-Trace: news.mel.aone.net.au 904969258 4953 203.12.186.163 (5 Sep 1998 04:20:58 GMT) Organization: TekRite Pty Ltd Mime-Version: 1.0 Reply-To: loryn@acm.org NNTP-Posting-Date: 5 Sep 1998 04:20:58 GMT Newsgroups: comp.lang.eiffel,comp.object,comp.software-eng,comp.lang.ada Date: 1998-09-05T04:20:58+00:00 List-Id: > Unfortunately in C++ even if the interface of 2 classes is the same > they are not polymorphically substitutable for each other unless they > both inherit from a common class. This is interesting that you say "unfortunately". If 2 classes *did* have the same interface, why wouldn't you make them both inherit from an abstract class that defines the interface? Loryn Jenkins