220 11524 article Path: news.gmane.org!not-for-mail From: Nevin Liber Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Add support for move-only types in std::priority_queue Date: Thu, 19 Jun 2014 09:49:10 +0200 Lines: 64 Approved: news@gmane.org Message-ID: References: <2fff5775-3cb1-433f-b01f-8018a65eec82@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary=089e0141a202274f6004fc2b9f9e X-Trace: ger.gmane.org 1403164202 15563 80.91.229.3 (19 Jun 2014 07:50:02 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 19 Jun 2014 07:50:02 +0000 (UTC) To: "std-proposals@isocpp.org" Original-X-From: std-proposals+bncBCE35H5S6IDBBH5MRKOQKGQEPJYNKMY@isocpp.org Thu Jun 19 09:49:55 2014 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-la0-f70.google.com ([209.85.215.70]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1WxX6W-0000u7-9u for gclcip-std-proposals@m.gmane.org; Thu, 19 Jun 2014 09:49:52 +0200 Original-Received: by mail-la0-f70.google.com with SMTP id s18sf1286537lam.9 for ; Thu, 19 Jun 2014 00:49:52 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:sender:in-reply-to:references:from :date:message-id:subject: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=oJtb8SaZK5Tqh0IB2MEV4nFJurP2daEbCNMpa7z9DRQ=; b=QZ4W+RPs9NI0wfVHwWIrqGvCfJ3gCfngGQ3b82KPXZlJR+rmMtjn0XXJ4szcM37sva D9w4dZgTy+GRExc3kNd72IgYFI2h7BYZq7MUK1gXEUS2Bx2nwAJxIjkZXI6lSqAz0Bcu OkhJC/s4WyrVWDS22oEDTSgEXXUkSYfDr53bMlXZYfwSR7L3gXLMgP7qcH8wyHnwAx66 PxnUptY6V9HC+Ofkrc/xYabfXAGk6huUJxkyL+YJ8zcwhEjUi6meg7a2swqeUCGFfiHM 0ymY7QF3QhN0iq353Xyxsw5SGYu+JFxOf+24VzH5Sq4MwX5hKS3zIid077akA1UqN78S 2Dkw== X-Gm-Message-State: ALoCoQlEaUh592gBvbDszMKyuv7ZmWXKiC2gGoYrYrMewv2qheXWdsfZcqNiC0pbcI0B0oCSecUq X-Received: by 10.152.21.133 with SMTP id v5mr13122lae.9.1403164192066; Thu, 19 Jun 2014 00:49:52 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.180.96.34 with SMTP id dp2ls651419wib.24.canary; Thu, 19 Jun 2014 00:49:51 -0700 (PDT) X-Received: by 10.180.90.242 with SMTP id bz18mr4283929wib.12.1403164190990; Thu, 19 Jun 2014 00:49:50 -0700 (PDT) Original-Received: from mail-wi0-x22c.google.com (mail-wi0-x22c.google.com [2a00:1450:400c:c05::22c]) by mx.google.com with ESMTPS id j1si6156070wjx.36.2014.06.19.00.49.50 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 19 Jun 2014 00:49:50 -0700 (PDT) Received-SPF: pass (google.com: domain of nliber@gmail.com designates 2a00:1450:400c:c05::22c as permitted sender) client-ip=2a00:1450:400c:c05::22c; Original-Received: by mail-wi0-f172.google.com with SMTP id hi2so8849433wib.11 for ; Thu, 19 Jun 2014 00:49:50 -0700 (PDT) X-Received: by 10.194.243.10 with SMTP id wu10mr3207092wjc.44.1403164190787; Thu, 19 Jun 2014 00:49:50 -0700 (PDT) Original-Sender: nliber@gmail.com Original-Received: by 10.194.122.71 with HTTP; Thu, 19 Jun 2014 00:49:10 -0700 (PDT) In-Reply-To: <2fff5775-3cb1-433f-b01f-8018a65eec82@isocpp.org> X-Original-Sender: nevin@eviloverlord.com X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of nliber@gmail.com designates 2a00:1450:400c:c05::22c as permitted sender) smtp.mail=nliber@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:11524 Archived-At: --089e0141a202274f6004fc2b9f9e Content-Type: text/plain; charset=UTF-8 On 19 June 2014 09:46, wrote: > Currently there is no clean way use move-only types in > std::priority_queue. The top() function returns a const-reference and the > pop() function does not return anything. > I suggest adding a function, extract_top() that is equivalent to pop() > except that it also returns the element that was at the top. > What should happen if an exception is thrown? -- Nevin ":-)" Liber (847) 691-1404 -- --- 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/. --089e0141a202274f6004fc2b9f9e Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
On 19 June 2014 09:46, <alex.shtf@gmail.com> wrote:
Currently there is no clean way use move-only types in std= ::priority_queue. The top() function returns a const-reference and the pop(= ) function does not return anything.
I suggest adding a function, extrac= t_top() that is equivalent to pop() except that it also returns the element= that was at the top.

What should happen if an exception i= s thrown?
--
=C2=A0Nevin ":-)" Liber=C2=A0 <mai= lto:nevin@evilo= verlord.com>=C2=A0 (847) 691-1404

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