220 7573 <2334136.EQ8SoHyhLE@tjmaciei-mobl2> article Path: news.gmane.org!not-for-mail From: Thiago Macieira Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: Fixing the private method issue Date: Sun, 03 Nov 2013 21:28:49 -0800 Lines: 30 Approved: news@gmane.org Message-ID: <2334136.EQ8SoHyhLE@tjmaciei-mobl2> References: <4608928.hBFqcpEg1D@tjmaciei-mobl2> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 X-Trace: ger.gmane.org 1383542926 14854 80.91.229.3 (4 Nov 2013 05:28:46 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 4 Nov 2013 05:28:46 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCB4TK757YBRBE7B3SJQKGQEHIHSOAA@isocpp.org Mon Nov 04 06:28:53 2013 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-we0-f197.google.com ([74.125.82.197]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1VdCib-0002zS-6z for gclcip-std-proposals@m.gmane.org; Mon, 04 Nov 2013 06:28:53 +0100 Original-Received: by mail-we0-f197.google.com with SMTP id t60sf2841168wes.0 for ; Sun, 03 Nov 2013 21:28:52 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:subject:date:message-id:user-agent :in-reply-to:references:mime-version:x-original-sender :x-original-authentication-results:reply-to:precedence:mailing-list :list-id:list-post:list-help:list-archive:list-subscribe :list-unsubscribe:content-type; bh=gyK0xWO12UvJi/h2w0ThH4IUUdWaYSyc8ovcGE7ao7k=; b=VsW1vk7qyIOXqLeaWYYTf1dFRr7+OiPmeArjBaaVX++JGdM6CZDwzCHWrvHBuymvwL p+I48x6kwU9BLUNbq4AviDQUJkL29O1n5YfSlsIFVq87wOYwGU+ujaAF8Z2RMT0FB+Ww TebvaTXDHlN/aWDqGUR1S02tahASLsw+t7dtpt7v3El+CWkKIh3iJmTLlCDioKF7QSeK ECzdSw8XL0Po5XovbnP+R0HuJ2tR8C8jrZslzTWkqUD/zxfpa0TsxXUXx6S+3/hG1eWv 8W/K08MnZgUIJa0oCvWYQR+2BPBBK4Ol/DUyxbv28s/NNqivhBLH1KB+I13fo7v+RC4u NjJw== X-Gm-Message-State: ALoCoQnMOj2WLZbE5wsz5mO7Lpz5gZ33JLkY6a9xX1hIh9UrS6hIZLWK0Gv1vo+Y5TKLOigzFyW9 X-Received: by 10.112.202.193 with SMTP id kk1mr5390043lbc.17.1383542932476; Sun, 03 Nov 2013 21:28:52 -0800 (PST) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.180.184.35 with SMTP id er3ls427282wic.35.canary; Sun, 03 Nov 2013 21:28:51 -0800 (PST) X-Received: by 10.14.207.132 with SMTP id n4mr134250eeo.102.1383542931580; Sun, 03 Nov 2013 21:28:51 -0800 (PST) Original-Received: from gondolin.macieira.info (gondolin.macieira.info. [2a01:4f8:d13:f81:21c:14ff:fe01:12a3]) by mx.google.com with ESMTP id c49si9175736eeg.117.2013.11.03.21.28.51 for ; Sun, 03 Nov 2013 21:28:51 -0800 (PST) Received-SPF: pass (google.com: domain of thiago@macieira.org designates 2a01:4f8:d13:f81:21c:14ff:fe01:12a3 as permitted sender) client-ip=2a01:4f8:d13:f81:21c:14ff:fe01:12a3; Original-Received: from tjmaciei-mobl2.localnet (unknown [IPv6:2002:3289:aaef:0:943d:6087:3027:c588]) by gondolin.macieira.info (Postfix) with ESMTPSA id 19B1C12C01E for ; Sun, 3 Nov 2013 21:28:51 -0800 (PST) User-Agent: KMail/4.12 pre (Linux/3.9.10-100+i915fix.fc17.x86_64; KDE/4.11.60; x86_64; git-8054221; 2013-08-01) In-Reply-To: X-Original-Sender: thiago@macieira.org X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of thiago@macieira.org designates 2a01:4f8:d13:f81:21c:14ff:fe01:12a3 as permitted sender) smtp.mail=thiago@macieira.org Precedence: list Mailing-list: list std-proposals@isocpp.org; contact std-proposals+owners@isocpp.org List-ID: X-Google-Group-Id: 399137483710 List-Post: , List-Help: , List-Archive: List-Subscribe: , List-Unsubscribe: , Xref: news.gmane.org gmane.comp.lang.c++.isocpp.proposals:7573 Archived-At: On segunda-feira, 4 de novembro de 2013 06:41:12, Ville Voutilainen wrote: > I still have trouble grokking the "that includes overrides" part. How does > adding an override change the ABI? See these two exceptions to overriding virtuals http://techbase.kde.org/Policies/Binary_Compatibility_Examples#Override_a_virtual_with_a_covariant_return_with_different_top_address http://techbase.kde.org/Policies/Binary_Compatibility_Examples#Override_a_virtual_that_doesn.27t_come_from_a_primary_base These two overrides are actually new virtuals in disguise under the portable IA-64 C++ ABI used by GCC and Clang. Since those two cases are possible, we have to take into consideration the possibility that other overrides are actually new virtuals under other ABIs. That means we must treat all overrides as if they were new virtuals for the purpose of defining the standard. -- Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org Software Architect - Intel Open Source Technology Center PGP/GPG: 0x6EF45358; fingerprint: E067 918B B660 DBD1 105C 966C 33F5 F005 6EF4 5358 -- --- You received this message because you are subscribed to the Google Groups "ISO C++ Standard - Future Proposals" group. To unsubscribe from this group and stop receiving emails from it, send an email to std-proposals+unsubscribe@isocpp.org. To post to this group, send email to std-proposals@isocpp.org. Visit this group at http://groups.google.com/a/isocpp.org/group/std-proposals/. .