220 7607 article Path: news.gmane.org!not-for-mail From: Olaf van der Spek Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: Fixing the private method issue Date: Wed, 6 Nov 2013 13:45:32 +0100 Lines: 25 Approved: news@gmane.org Message-ID: References: <5eeafd6f-32f3-4281-9374-617af852fe21@isocpp.org> <2bc74340-d319-4725-92dd-5b95b59db7c8@isocpp.org> <9ce77e08-d9eb-48d0-969b-3aae833a3708@isocpp.org> 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 1383741931 856 80.91.229.3 (6 Nov 2013 12:45:31 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 6 Nov 2013 12:45:31 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBC5NB45SSABBB3PT5CJQKGQEPIVZBHY@isocpp.org Wed Nov 06 13:45:36 2013 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-ee0-f69.google.com ([74.125.83.69]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Ve2UI-0004GT-QX for gclcip-std-proposals@m.gmane.org; Wed, 06 Nov 2013 13:45:34 +0100 Original-Received: by mail-ee0-f69.google.com with SMTP id e49sf7041537eek.0 for ; Wed, 06 Nov 2013 04:45:34 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to: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=uFvuOeDG8An0qkuvuAtXnZ2zQjya1nqGZxR/CKeuhLg=; b=OgXAsk83AfvNvVH1FhyWJC7wLaZeswKQu4AFgqr5FAIKXJQ4hyEzItJZ/UYIuU4kHY UHJ7LYKQ+TQeA7jFfi46J8Jgh7pavxYdgevSdGhsIiQLk8SQTBPqjaC4JQoaoVblRsTj KUqTTs60DzEoAtWegOd+zZye0IVbSJgK6k9gXx9p+a7gstOKqT7/NgqlciJcWuzAexch rA4Mj5kpECthjrJaYqFt6ezQkSlefopgbZFQW/v+SraYIhBJJmhEM4DmaepeWVjgW6Ji eprF1kDiLBhZDE/tnITDyA/rDHmzzpwskYy/rFCFpAFz2mwVSLtX2w1luE8/afZPBuZD k3Yg== X-Gm-Message-State: ALoCoQla9uwuhQXqwUUX/QtjrCRn95b09U7EJsnsNEZLrPkFNFXf+hDdmoltqGNS9DuX0+w2goYD X-Received: by 10.180.106.70 with SMTP id gs6mr4456077wib.3.1383741934380; Wed, 06 Nov 2013 04:45:34 -0800 (PST) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.180.8.168 with SMTP id s8ls264457wia.54.gmail; Wed, 06 Nov 2013 04:45:33 -0800 (PST) X-Received: by 10.204.167.140 with SMTP id q12mr1864260bky.2.1383741933442; Wed, 06 Nov 2013 04:45:33 -0800 (PST) Original-Received: from mail-lb0-x231.google.com (mail-lb0-x231.google.com [2a00:1450:4010:c04::231]) by mx.google.com with ESMTPS id ci7si4223882bkc.180.2013.11.06.04.45.33 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 06 Nov 2013 04:45:33 -0800 (PST) Received-SPF: pass (google.com: domain of olafvdspek@gmail.com designates 2a00:1450:4010:c04::231 as permitted sender) client-ip=2a00:1450:4010:c04::231; Original-Received: by mail-lb0-f177.google.com with SMTP id u14so7576423lbd.22 for ; Wed, 06 Nov 2013 04:45:33 -0800 (PST) X-Received: by 10.112.168.170 with SMTP id zx10mr2563036lbb.0.1383741933050; Wed, 06 Nov 2013 04:45:33 -0800 (PST) Original-Received: by 10.152.5.229 with HTTP; Wed, 6 Nov 2013 04:45:32 -0800 (PST) In-Reply-To: <9ce77e08-d9eb-48d0-969b-3aae833a3708@isocpp.org> X-Original-Sender: olafvdspek@gmail.com X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of olafvdspek@gmail.com designates 2a00:1450:4010:c04::231 as permitted sender) smtp.mail=olafvdspek@gmail.com; dkim=pass header.i=@gmail.com; dmarc=pass (p=NONE dis=NONE) header.from=gmail.com 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:7607 Archived-At: On Wed, Nov 6, 2013 at 1:21 PM, wrote: > On Monday, November 4, 2013 8:18:22 AM UTC-5, Olaf van der Spek wrote: >> >> Not entirely true. In general, callers don't need to know the layout. The >> layout is (only?) required when accessing data members, the size is only >> required when creating an object on the stack. >> Not requiring private data members in the header would be nice too IMO. > > > But how would you compute the size without knowing the layout? You > need to know the layout for padding. Also, what real use is knowing > the size without knowing the layout. As soon as you change a data > member your callers will need to recompile anyway as the size will > change. If you pass by reference / pointer there's no need to know size, is there? -- --- 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. 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