From -3836615229510797251 X-Google-Thread: 7894ca11fe,ca1d48828e7eb066 X-Google-Attributes: gid7894ca11fe,public,usenet X-Google-NewGroupId: yes X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news2.google.com!news2.google.com!Xl.tags.giganews.com!border1.nntp.dca.giganews.com!nntp.giganews.com!local2.nntp.dca.giganews.com!news.giganews.com.POSTED!not-for-mail NNTP-Posting-Date: Thu, 15 Oct 2009 22:20:14 -0500 Return-Path: To: (Usenet) From: Sean Hunt Newsgroups: comp.std.c++ Subject: Re: Keyword abstract for pure virtual functions in c++0x Organization: http://groups.google.com Sender: cppmods@cs.rpi.edu Approved: stephen.clamage@sun.com Message-ID: <1f008923-3930-4613-a4b9-1c575d97774a@k13g2000prh.googlegroups.com> References: <64708d1f-cb87-4e3b-a1c8-845c98490c25@o41g2000yqb.googlegroups.com> <06f78e41-2741-4217-9d79-94bd729418d7@f20g2000prn.googlegroups.com> Content-Type: text/plain; charset=ISO-8859-1 X-Original-Date: Wed, 14 Oct 2009 18:35:45 -0700 (PDT) X-Submission-Address: std-c++@netlab.cs.rpi.edu Date: Thu, 15 Oct 2009 22:15:08 CST Lines: 20 X-Usenet-Provider: http://www.giganews.com X-Trace: sv3-v3RlQ/08HAx7/i+th7eDOcZO2qbMo2WhEfMd/gXMXb/36yRhabiQefhBOxnekRcx50jUJC8D2VPMbTk!M/4VMO6PeuQmmb3mD+xmC/l6rfXUcCZYhTtLa3M9Ipf8mS/Q9ecuijaGEFi7+dPhfxlorlWoYwNs!Hk17ufzOeWbsaY596/BkGnUPd2k= X-Complaints-To: abuse@giganews.com X-DMCA-Notifications: http://www.giganews.com/info/dmca.html X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.40 Xref: g2news2.google.com comp.std.c++:1490 On Oct 14, 12:37 pm, Francis Glassborow wrote: > Of course they notice because of the way that dtors chain together > which is why you have to define your dtor even if you have declared it > a pure virtual. Yes, but because the compiler defines a destructor for you if you don't provide one, all classes inheriting from it will always provide a replacement definition, so the pureness of a destructor won't affect any inheritors. Sean Hunt -- [ comp.std.c++ is moderated. To submit articles, try just posting with ] [ your news-reader. If that fails, use mailto:std-c++@netlab.cs.rpi.edu] [ --- Please see the FAQ before posting. --- ] [ FAQ: http://www.comeaucomputing.com/csc/faq.html ]