220 7591 <1552463.5qu4FCA00r@tjmaciei-mobl2> article Path: news.gmane.org!not-for-mail From: Thiago Macieira Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Fixing the private method issue Date: Mon, 04 Nov 2013 09:20:25 -0800 Lines: 27 Approved: news@gmane.org Message-ID: <1552463.5qu4FCA00r@tjmaciei-mobl2> References: 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 1383585631 11226 80.91.229.3 (4 Nov 2013 17:20:31 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 4 Nov 2013 17:20:31 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCB4TK757YBRBX5O36JQKGQEIOK32WA@isocpp.org Mon Nov 04 18:20:38 2013 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-lb0-f198.google.com ([209.85.217.198]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1VdNpI-0003YB-RT for gclcip-std-proposals@m.gmane.org; Mon, 04 Nov 2013 18:20:32 +0100 Original-Received: by mail-lb0-f198.google.com with SMTP id w6sf9995644lbh.1 for ; Mon, 04 Nov 2013 09:20:32 -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=gsnDJMt5NSLpw7ZPaoWgFHvEydRaPCzBzyjUcBpHiPQ=; b=JGrOCLkmnsjgAvpH8DyK/xN3xk7qCqCc4hlHOb/zSyef0QiHy4ujchmsLR0OgBE3pA SeBUDRDDqNA1+amfWJ4LZzL+9h9ALmrN11vVfAROmT3DxApIRjaDpbLYLOxnLla5EyGN 0ALZ5sBMDNOp1rXVwLPAjE2kfy5TExDxPjpulOVDwYVyTC9Bttw/J2otpJE0etzOLPuF CIXAQQiJ8E0Uxrl/HcBqZlPIsg3l2h7Z7BJdJX0DGc1fTsscFElXPP0QZeERigs64YLT nSQrP7T4EJ2cGSytCTBpxOBaAF3TFFuj3hnAtXHSIgNxGXjVIZmTaPk12Olnk/K7H98R 9BtA== X-Gm-Message-State: ALoCoQmdr1nDpgT3LRNJKC86igVDG6i/kPZbD7hbdX3KbjvMka3PrNnC22nl50JflXwTwG+mgreQ X-Received: by 10.112.202.169 with SMTP id kj9mr6623682lbc.6.1383585632435; Mon, 04 Nov 2013 09:20:32 -0800 (PST) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.180.231.6 with SMTP id tc6ls515843wic.40.gmail; Mon, 04 Nov 2013 09:20:31 -0800 (PST) X-Received: by 10.14.42.6 with SMTP id i6mr5847832eeb.65.1383585631636; Mon, 04 Nov 2013 09:20:31 -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 h48si11255561eey.16.2013.11.04.09.20.27 for ; Mon, 04 Nov 2013 09:20:27 -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 [IPv6:2a01:4f8:d13:f81:21c:14ff:fe01:12a3]) by gondolin.macieira.info (Postfix) with ESMTPSA id 75E4D12C018 for ; Mon, 4 Nov 2013 09:20:27 -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:7591 Archived-At: On segunda-feira, 4 de novembro de 2013 18:11:01, xavi wrote: > Allowing the declaration of private member data outside of the header would > also make inheritance or composition with this class impossible, so any use > of this class would need to be through a pointer. In this case, what would > be the advantage of this with respect to using the pimpl idiom? It would simplify the code for the implementation. A good pimpl solution requires all public functions to be mirrored in the private so that you don't get a double indirection to the data (it also improves code generation because the private class isn't exported). This would be basically a way for C++ place member functions in opaque types. -- 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/. .