220 15569 article Path: news.gmane.org!not-for-mail From: Ville Voutilainen Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: RFC: Adding Symmetry Between shared_ptr and weak_ptr Date: Sat, 10 Jan 2015 21:10:57 +0200 Lines: 24 Approved: news@gmane.org Message-ID: References: Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Trace: ger.gmane.org 1420917065 30985 80.91.229.3 (10 Jan 2015 19:11:05 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 10 Jan 2015 19:11:05 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBC5JHI7A7ALRBQXSYWSQKGQEW6LECZI@isocpp.org Sat Jan 10 20:11:01 2015 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-pa0-f72.google.com ([209.85.220.72]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1YA1R6-0003dr-85 for gclcip-std-proposals@m.gmane.org; Sat, 10 Jan 2015 20:11:00 +0100 Original-Received: by mail-pa0-f72.google.com with SMTP id kq14sf142213888pab.3 for ; Sat, 10 Jan 2015 11:10:59 -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:content-type:x-original-sender :x-original-authentication-results:reply-to:precedence:mailing-list :list-id:list-post:list-help:list-archive:list-subscribe :list-unsubscribe; bh=xN/gfrIGdt6gDSBw1Czx0KCTm7m64cZMc1qx34VVKek=; b=Jea/5rbaiGQQDP6yykelOwIHnK9uCoyLnqbo5ZYXcjz5zJ38Tzpqx8FmL01RF3uP8A GRqlf/pKGWI0QDFcOsBvMsPYv5y4f7iIBgD77awN3O58Ww6TDTMX7Bb3iZs4fGtSoPTc 6E3FVtf/gUODTjD9uKxqgKeaSqtMLxKeXI///nTSJ3f3NR9VbL9739VoLZyRrQfYNWss 4qCTNZkzeX1SzCxlkdjq8YGUmRG58A0++rWpVE3rghjMAeg25IU96aF6z5muOEvQd/zT +QkzABhQELRlF9OzSuFiCRUPfwmp184nbQuLIJkogcs/rMvimOONzeH8ZpKuv0CTYAtl zecw== X-Gm-Message-State: ALoCoQmbb0URDJ+z29VzlyG9gyz+EwujRuY5EoeinLPflEQyceULW91fhuIxHCTLo+XuEOBezYY0 X-Received: by 10.66.142.12 with SMTP id rs12mr16053107pab.36.1420917059165; Sat, 10 Jan 2015 11:10:59 -0800 (PST) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.182.142.100 with SMTP id rv4ls744418obb.84.gmail; Sat, 10 Jan 2015 11:10:58 -0800 (PST) X-Received: by 10.182.1.172 with SMTP id 12mr13249466obn.6.1420917058245; Sat, 10 Jan 2015 11:10:58 -0800 (PST) Original-Received: from mail-oi0-x234.google.com (mail-oi0-x234.google.com. [2607:f8b0:4003:c06::234]) by mx.google.com with ESMTPS id cn3si7646068oeb.91.2015.01.10.11.10.58 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Sat, 10 Jan 2015 11:10:58 -0800 (PST) Received-SPF: pass (google.com: domain of ville.voutilainen@gmail.com designates 2607:f8b0:4003:c06::234 as permitted sender) client-ip=2607:f8b0:4003:c06::234; Original-Received: by mail-oi0-f52.google.com with SMTP id a3so16025285oib.11 for ; Sat, 10 Jan 2015 11:10:58 -0800 (PST) X-Received: by 10.202.196.206 with SMTP id u197mr12333783oif.21.1420917058012; Sat, 10 Jan 2015 11:10:58 -0800 (PST) Original-Received: by 10.76.154.2 with HTTP; Sat, 10 Jan 2015 11:10:57 -0800 (PST) In-Reply-To: X-Original-Sender: ville.voutilainen@gmail.com X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of ville.voutilainen@gmail.com designates 2607:f8b0:4003:c06::234 as permitted sender) smtp.mail=ville.voutilainen@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:15569 Archived-At: On 10 January 2015 at 21:01, Arthur O'Dwyer wrote: > I've got a rough draft of a proposal for the next meeting in May, and would > like to hear anyone's feedback on the format and content before then. > > https://quuxplusone.github.io/draft/Nweak_ptr_proposal.html > > The TL;DR is that it proposes two very small new library features: > - shared_ptr::unlock(), which turns a shared_ptr into a weak_ptr, symmetric > with weak_ptr::lock() > - An two-argument constructor for weak_ptr(), symmetric with shared_ptr's > two-argument constructor Looks good to me, I found the rationale (and the whole proposal) very reasonable and well-written. -- --- 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/. .