From 3423799421523684790 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f78e5,c9300cc6a0b28243 X-Google-Attributes: gidf78e5,public X-Google-ArrivalTime: 2003-08-08 16:29:52 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!logbridge.uoregon.edu!kibo.news.demon.net!mutlu.news.demon.net!demon!mail2news.demon.co.uk!devnull From: deutronium@web.de ("cody") Newsgroups: comp.std.c++ Subject: Re: no_base_call Date: Fri, 8 Aug 2003 23:29:52 +0000 (UTC) Lines: 44 Approved: fjh@cs.mu.oz.au (Fergus Henderson , moderator of comp.std.c++) Message-ID: References: <_azXa.385380$jp.11007710@twister.southeast.rr.com> X-Trace: mail2news.demon.co.uk 1060385392 25161 10.0.0.1 (8 Aug 2003 23:29:52 GMT) X-Complaints-To: abuse@demon.net NNTP-Posting-Date: Fri, 8 Aug 2003 23:29:52 +0000 (UTC) X-Received: from mulga.cs.mu.oz.au ([128.250.1.22]) by news.demon.co.uk with esmtp (Exim 4.12) id 19lGgB-0006Xg-00 for mail2news@news.news.demon.net; Fri, 08 Aug 2003 23:29:51 +0000 X-Received: by mulga.cs.mu.OZ.AU id JAA09408; Sat, 9 Aug 2003 09:29:48 +1000 (EST) X-Authentication-Warning: mulga.cs.mu.OZ.AU: fjh set sender to devnull@stump.algebra.com using -f X-Path: comp-std-cpp-robomod!not-for-mail X-Robomod: STUMP, ichudov@algebra.com (Igor Chudov) X-Delivered-To: std-c++@ucar.edu X-Reply-To: "cody" X-Newsgroups: comp.std.c++ X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-NNTP-Posting-Date: Fri, 08 Aug 2003 15:21:42 MET DST X-Spamscanner: mailbox1.ucsd.edu (v1.2 May 26 2003 01:55:38, 0.0/5.0 2.55) X-MailScanner: PASSED (v1.2.7 42390 h78DLnk4055907 mailbox1.ucsd.edu) X-Spam-Status: No, hits=-4.3 required=5.0 tests=BAYES_10,PRIORITY_NO_NAME,REFERENCES version=2.55 X-Spam-Checker-Version: SpamAssassin 2.55 (1.174.2.19-2003-05-19-exp) Xref: archiver1.google.com comp.std.c++:20534 you can't create a virtual function and say what somebody has to do with is. this is the decision of the programmer. there are 3 things which you can do with a vitual function when overriding it: replace it: virtual void Func() { // your code goes here } extend it: virtual void Func() { Base::Func(); // call the base // your code goes here after the base call } intercept it: virtual void Func() { // your code before the basefunc is called Base::Func(); // call the base } when you design a class you can never know what a programmer will do with your virtual functions in its derrived classes. if you would know you wouldn't need them. -- cody Freeware Tools, Games and Humour http://www.deutronium.de.vu [noncommercial and no fucking ads] --- [ comp.std.c++ is moderated. To submit articles, try just posting with ] [ your news-reader. If that fails, use mailto:std-c++@ncar.ucar.edu ] [ --- Please see the FAQ before posting. --- ] [ FAQ: http://www.jamesd.demon.co.uk/csc/faq.html ]