220 4839 article Path: news.gmane.org!not-for-mail From: Jeffrey Yasskin Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: Proposal: std::sequence Date: Mon, 3 Jun 2013 13:49:26 -0700 Lines: 44 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> <79a2d3b8-5ab0-48e0-a200-32185c38f9c3@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 1370292589 18288 80.91.229.3 (3 Jun 2013 20:49:49 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 3 Jun 2013 20:49:49 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBDDM34EO6QDRB24CWSGQKGQEFA23ZGY@isocpp.org Mon Jun 03 22:49:49 2013 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-vc0-f198.google.com ([209.85.220.198]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1UjbhM-0004CI-Pb for gclcip-std-proposals@m.gmane.org; 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Mon, 03 Jun 2013 13:49:46 -0700 (PDT) Original-Received: from mail-qe0-f42.google.com (mail-qe0-f42.google.com [209.85.128.42]) by mx.google.com with ESMTPS id k1si45325953qaz.67.2013.06.03.13.49.46 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 03 Jun 2013 13:49:46 -0700 (PDT) Received-SPF: pass (google.com: domain of jyasskin@google.com designates 209.85.128.42 as permitted sender) client-ip=209.85.128.42; Original-Received: by mail-qe0-f42.google.com with SMTP id s14so976150qeb.1 for ; Mon, 03 Jun 2013 13:49:46 -0700 (PDT) X-Received: by 10.224.146.66 with SMTP id g2mr20700482qav.50.1370292586271; Mon, 03 Jun 2013 13:49:46 -0700 (PDT) Original-Received: by 10.229.80.194 with HTTP; Mon, 3 Jun 2013 13:49:26 -0700 (PDT) In-Reply-To: <79a2d3b8-5ab0-48e0-a200-32185c38f9c3@isocpp.org> X-Gm-Message-State: ALoCoQl09s4gt6B3Kl+5Nt+Y3gfBfB5VIrgZ3ZKqXWM+n8mzyIGQMkBQlycSrdfn3AzJ15egLFMuEmhNO4Ak5kxQ84wU3QXN+IRvBGUFMSlgK/cJGm+oFSTWZAumrVWvkObK84ofdTxZ+Xt2UETqMb2zZEHo+gaqcnUuUspd8Cha/WzO5JtipZ/2b1ec6L+8tieErgJYHRyg X-Original-Sender: jyasskin@google.com X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of jyasskin@google.com designates 209.85.128.42 as permitted sender) smtp.mail=jyasskin@google.com; dkim=pass header.i=@google.com; dmarc=pass (p=REJECT dis=none) d=google.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:4839 Archived-At: On Mon, Jun 3, 2013 at 1:41 PM, Alex B wrote: >> I do still think that we should use const iterator_range (or a >> template alias to that) to represent a continuous range whose bound can't >> change, > > > That sounds like the long term solution to me (considering it part of a > broader range support) while array_ref/sequence could solve it in a much > shorter term without getting in the way of a future iterator_range (if it > ever gets added). SG9 is active and will have a proposal for iterator_range in Chicago. If LWG allows that proposal into a TS, that's just as fast as any array_ref/sequence could get in. On the other hand, if LWG holds up iterator_range until "broader range support" is ready (which I think would be crazy but might happen), then they're just as likely to hold up array_ref for the same amount of time. > We have had std::pair for a long time and it did not prevent generalizing > (std::tuple). > > -- > > --- > 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. > > -- --- 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. .