220 4851 article Path: news.gmane.org!not-for-mail From: Felipe Magno de Almeida Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: Proposal: std::sequence Date: Tue, 4 Jun 2013 14:37:32 -0300 Lines: 103 Approved: news@gmane.org Message-ID: References: <4551abbc-43aa-4520-a91a-f8eb25a90588@isocpp.org> <2c8e6079-9c87-425a-93e2-39251df57cd8@isocpp.org> <9f1cace3-0503-4a3c-a8ce-d7546564b3ef@isocpp.org> <1c991e6e-6bc3-4822-9ffd-7f2508e63974@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary=047d7bdc18880739e704de578baa X-Trace: ger.gmane.org 1370367485 29258 80.91.229.3 (4 Jun 2013 17:38:05 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 4 Jun 2013 17:38:05 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCL7ZKXVZICRB7GLXCGQKGQEZC2N5CI@isocpp.org Tue Jun 04 19:38:06 2013 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-ie0-f200.google.com ([209.85.223.200]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1UjvBO-0006Ir-6c for gclcip-std-proposals@m.gmane.org; Tue, 04 Jun 2013 19:38:06 +0200 Original-Received: by mail-ie0-f200.google.com with SMTP id k5sf2517742iea.3 for ; Tue, 04 Jun 2013 10:38:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-beenthere:mime-version:in-reply-to:references:from:date :message-id:subject:to:x-original-sender :x-original-authentication-results:reply-to:precedence:mailing-list :list-id:x-google-group-id:list-post:list-help:list-archive :list-subscribe:list-unsubscribe:content-type; bh=H3sz4gOpcpe2Scf0bTHqh1JCTOZAI9kV3M8URFfzle8=; b=eI50hT8bW2X6N9Z9t3g+ugzaQzzxWccehJtxdZTRSaXyg4YV6w9a4j+vufdAPDexPF 68PPiTqHSlXX6WOFjtb1MjN8EQowZA0ntuXDYbjQZ0AtFHJaK2Nn3hXEnrF3z9qWkj83 7lhKPOUaz9P+7HEurd/FHjOLLc9y0c+/h0dJSc0lLlvpu/N+LJwTqqYHh+6WSnzrY/iU Q7apb9dq7AAU+CqB/sIlNGwcCF2XmhklNOMnLv+MhGLx9bbSy6WENd2qbPCmPC1tQMdS VXN/jC2aKNTjxjbdo2zrKP77CXnxUgUkk6LrX77+f3jyxDOK0UAEic8iIhJROqDmm+Xu TA0Q== X-Received: by 10.182.129.116 with SMTP id nv20mr6225548obb.40.1370367485185; Tue, 04 Jun 2013 10:38:05 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.182.204.10 with SMTP id ku10ls42990obc.65.gmail; Tue, 04 Jun 2013 10:38:03 -0700 (PDT) X-Received: by 10.60.116.164 with SMTP id jx4mr12524116oeb.29.1370367483244; Tue, 04 Jun 2013 10:38:03 -0700 (PDT) Original-Received: from mail-ie0-x230.google.com (mail-ie0-x230.google.com [2607:f8b0:4001:c03::230]) by mx.google.com with ESMTPS id wq7si28734573obb.127.2013.06.04.10.38.03 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 04 Jun 2013 10:38:03 -0700 (PDT) Received-SPF: pass (google.com: domain of felipe.m.almeida@gmail.com designates 2607:f8b0:4001:c03::230 as permitted sender) client-ip=2607:f8b0:4001:c03::230; Original-Received: by mail-ie0-f176.google.com with SMTP id at20so1057780iec.21 for ; Tue, 04 Jun 2013 10:38:02 -0700 (PDT) X-Received: by 10.50.67.36 with SMTP id k4mr1493755igt.29.1370367482848; Tue, 04 Jun 2013 10:38:02 -0700 (PDT) Original-Received: by 10.50.66.129 with HTTP; Tue, 4 Jun 2013 10:37:32 -0700 (PDT) In-Reply-To: <1c991e6e-6bc3-4822-9ffd-7f2508e63974@isocpp.org> X-Original-Sender: felipe.m.almeida@gmail.com X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of felipe.m.almeida@gmail.com designates 2607:f8b0:4001:c03::230 as permitted sender) smtp.mail=felipe.m.almeida@gmail.com; dkim=pass header.i=@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:4851 Archived-At: --047d7bdc18880739e704de578baa Content-Type: text/plain; charset=ISO-8859-1 On Tue, Jun 4, 2013 at 11:27 AM, wrote: > > On Monday, June 3, 2013 6:39:35 PM UTC-4, Nicol Bolas wrote: >> >> On Monday, June 3, 2013 1:24:54 PM UTC-7, carrieran...@yahoo.co.uk wrote: >> > [snip] > re Lightweight: The smallest array_ref could be the same size as a >>> sequence. Because array_ref's members are not const, it could result in >>> larger and slower code. >>> >> >> ... how? They'll just be a pair of pointers or a pointer+size either way. >> > > So you have checked my math. What exactly is your question? > The question seems to be "how [would array_ref's members not const be larger and slower]?". Or to put a better way: how would your sequence be smaller or faster than an array_ref. I wonder myself the same question. [snip] Regards, -- Felipe Magno de Almeida -- --- 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/?hl=en. --047d7bdc18880739e704de578baa Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
On T= ue, Jun 4, 2013 at 11:27 AM, <carrierandoperator@yahoo.co.uk= > wrote:

On Monday, June 3, 201= 3 6:39:35 PM UTC-4, Nicol Bolas wrote:
On Monday, June 3, 2013 1:24:54 PM UTC-7, carrieran...@yahoo.co.uk w= rote:

[snip]
=A0
re Lightweight: The smallest array_ref could be the same size as a seq= uence. Because array_ref's members are not const, it could result in la= rger and slower code.

... how? They'll just = be a pair of pointers or a pointer+size either way.

So you have checked my math. W= hat exactly is your question?

The que= stion seems to be "how [would array_ref's members not const be lar= ger and slower]?". Or to put a better way: how would your sequence be = smaller or faster than an array_ref. I wonder myself the same question.

[snip]

Regards,
--
Felipe Magno de Almeida

--
 
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