220 4825 article Path: news.gmane.org!not-for-mail From: Nicol Bolas Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: Proposal: std::sequence Date: Mon, 3 Jun 2013 10:53:20 -0700 (PDT) Lines: 69 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> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_193_6309805.1370282000667" X-Trace: ger.gmane.org 1370282004 1010 80.91.229.3 (3 Jun 2013 17:53:24 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 3 Jun 2013 17:53:24 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCEKFTV6ZUMBBEVQWOGQKGQEGP3GY7Y@isocpp.org Mon Jun 03 19:53:25 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 1UjYwe-0001x5-Jn for gclcip-std-proposals@m.gmane.org; Mon, 03 Jun 2013 19:53:24 +0200 Original-Received: by mail-ie0-f200.google.com with SMTP id k5sf26603117iea.11 for ; Mon, 03 Jun 2013 10:53:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-beenthere:date:from:to:message-id:in-reply-to:references:subject :mime-version:x-original-sender:reply-to:precedence:mailing-list :list-id:x-google-group-id:list-post:list-help:list-archive :list-subscribe:list-unsubscribe:content-type; bh=aoWNqzMpq2WGP9n/VBCcT63hO5FYZ+cYUIxrbB/XnrA=; b=pDhShXkXsPBmfEAx4GYvtCO9ZycFTPrpvSK414+T4DhadtoOd14xPBkllP4eEwCKh8 pWRdF6e2a0m98GRJCBc265CLMNMv4S9MNVA8iyc4a4oBIOHo9hpi11SX7bUy1al9hLOa bHDTqsrn2ZkPidvi87fZd6usWGJeDOrkJaxS/UxBWlN+Kc9uxHb1ktAhbSkKs5tcbs5d 8hjfm6/FzG9EsroGaEUpi1zJOPR/U73uZttVhiUP085vV/KzrL2DUgEwUVDX/Tmar16Q HGCVX9qOKF4YoljkNozXIkZ9ZWKEn54xZAIP69kuPJMApQPr8hVzaLNMwQT8iBaU27uM YR1w== X-Received: by 10.50.128.46 with SMTP id nl14mr13081200igb.0.1370282003600; Mon, 03 Jun 2013 10:53:23 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.50.13.9 with SMTP id d9ls2256429igc.35.gmail; Mon, 03 Jun 2013 10:53:21 -0700 (PDT) X-Received: by 10.50.3.74 with SMTP id a10mr1789938iga.2.1370282001825; Mon, 03 Jun 2013 10:53:21 -0700 (PDT) In-Reply-To: <9f1cace3-0503-4a3c-a8ce-d7546564b3ef@isocpp.org> X-Original-Sender: jmckesson@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:4825 Archived-At: ------=_Part_193_6309805.1370282000667 Content-Type: text/plain; charset=ISO-8859-1 On Monday, June 3, 2013 10:11:52 AM UTC-7, carrieran...@yahoo.co.uk wrote: > > On Monday, June 3, 2013 12:49:03 PM UTC-4, Jeffrey Yasskin wrote: >> >> So your proposed class is not assignable? That's likely to be a problem. >> > > Correct. I've gotten by using my implementation for years without need for > assignment. This isn't a type one would normally use as a member variable > or, say, create a std::vector> of. They are very short lived > and lightweight to construct and copy. Of course, I can be convinced and I > am here hoping to improve it and hear feedback. Thanks. > And LLVM and Google have gotten by with types that are equally lightweight and shortlived, yet *theirs* are assignable and adjustable in size. Why should we use yours instead of theirs (ie: array_ref)? -- --- 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. ------=_Part_193_6309805.1370282000667 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On Monday, June 3, 2013 10:11:52 AM UTC-7, carrieran...@yahoo.co.uk wrote:<= blockquote class=3D"gmail_quote" style=3D"margin: 0;margin-left: 0.8ex;bord= er-left: 1px #ccc solid;padding-left: 1ex;">On Monday, June 3, 2013 12:49:0= 3 PM UTC-4, Jeffrey Yasskin wrote:
So your proposed class is not assignable? That's likely to be a problem.
 
Correct. I've gotten by using my imp= lementation for years without need for assignment. This isn't a type one wo= uld normally use as a member variable or, say, create a std::vector<sequ= ence<int>> of. They are very short lived and lightweight to constr= uct and copy. Of course, I can be convinced and I am here hoping to improve= it and hear feedback. Thanks.

And LLVM and Goog= le have gotten by with types that are equally lightweight and shortlived, y= et theirs are assignable and adjustable in size. Why should we use y= ours instead of theirs (ie: array_ref)?

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