220 11795 article Path: news.gmane.org!not-for-mail From: Ville Voutilainen Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: N4078: Rvalue reference overloads for value() method returns object by value Date: Thu, 10 Jul 2014 09:49:23 +0300 Lines: 34 Approved: news@gmane.org Message-ID: References: <4DA018C3-2327-4F55-B7F8-7988EC7B789A@gmail.com> <1a858a77-310b-4591-aaf5-960c40d9f5fc@isocpp.org> <66AF41C1-CB37-4311-98EA-D47DBC6068DC@gmail.com> <66c38b61-7a95-4ace-b34f-2346bb334fb9@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1404974971 11923 80.91.229.3 (10 Jul 2014 06:49:31 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 10 Jul 2014 06:49:31 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBC5JHI7A7ALRB47O7COQKGQEKOESOSA@isocpp.org Thu Jul 10 08:49:25 2014 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-yh0-f71.google.com ([209.85.213.71]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1X58AW-0007Cg-RK for gclcip-std-proposals@m.gmane.org; Thu, 10 Jul 2014 08:49:25 +0200 Original-Received: by mail-yh0-f71.google.com with SMTP id t59sf33956856yho.10 for ; Wed, 09 Jul 2014 23:49:23 -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:in-reply-to:references:date :message-id:subject:from: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:content-transfer-encoding; bh=xOzOzO04d/ldH8OzUk3DYDBO8V2r1duPzkwj0Q1d37c=; b=OANeX0IvgOVgwdZ6bYlo/A4IVQnR05raiMubUCdXbbNuw8hVVzGrA0PaNqq40UpjRY CizBVfJ1OD7HRM3C69ngoLVE2IGYfF5VlbtyHABH0C42o5DGzcyGbRo68xtqUizyGDzd yaJOKoVASYt/OVATzC31eXWswA0vIsPXpKZKFiB8UN5IEUNzeJCt6FbzMlcBDYNNf25w vWIg//bvZj9M9bwmPisFsLe/1pRd1V3K4Cm4j69gGN3jJgSJiyeAG1U1VF/ymVSCsE0k Sq/P3llHCk3qY6SWsuXM+Dyuylws4VZrT1jN0Z9Uix2TEtrcU3GnpiNuXMrxlfdMV+VQ 35xw== X-Gm-Message-State: ALoCoQnv06jrM3mmXy2rOxYBdsEFrNpE7rOcJvFMNTOLbQ3HyNhrK6Kt+lXNx1ys5RVljYxk2u8a X-Received: by 10.236.86.178 with SMTP id w38mr12878662yhe.13.1404974963892; Wed, 09 Jul 2014 23:49:23 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.140.87.207 with SMTP id r73ls2692043qgd.44.gmail; Wed, 09 Jul 2014 23:49:23 -0700 (PDT) X-Received: by 10.140.104.176 with SMTP id a45mr10034612qgf.75.1404974963314; Wed, 09 Jul 2014 23:49:23 -0700 (PDT) Original-Received: from mail-qc0-x22e.google.com (mail-qc0-x22e.google.com [2607:f8b0:400d:c01::22e]) by mx.google.com with ESMTPS id q45si24625705qga.96.2014.07.09.23.49.23 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 09 Jul 2014 23:49:23 -0700 (PDT) Received-SPF: pass (google.com: domain of ville.voutilainen@gmail.com designates 2607:f8b0:400d:c01::22e as permitted sender) client-ip=2607:f8b0:400d:c01::22e; Original-Received: by mail-qc0-f174.google.com with SMTP id x13so7100308qcv.19 for ; Wed, 09 Jul 2014 23:49:23 -0700 (PDT) X-Received: by 10.224.87.130 with SMTP id w2mr77060776qal.5.1404974963205; Wed, 09 Jul 2014 23:49:23 -0700 (PDT) Original-Received: by 10.224.31.137 with HTTP; Wed, 9 Jul 2014 23:49:23 -0700 (PDT) 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:f8b0:400d:c01::22e 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:11795 Archived-At: On 10 July 2014 09:41, David Krauss wrote: > If you=E2=80=99re going to iterate over a sequence within a container, bu= t you got > the first iterator from an xvalue, then the sequence is presumed to be de= ad > by the first statement in the loop. The sequence is not dead if I pass the iterator onto a processing function before the xvalue expires. Which is precisely what the general forwarding c= ases do, and what emplace does. > The example is in this thread, as has been said multiple times already. > https://groups.google.com/a/isocpp.org/d/msg/std-proposals/jDRQyBWYl8Q/iL= JFlolCOBgJ > > > That=E2=80=99s just a link to this thread, to a message containing anothe= r link. The > text begin() does not occur in that thread. Yeah, well, that message shows the "forwarding scenario". --=20 ---=20 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 e= mail 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-proposa= ls/. .