220 26361 <81998cb5-722e-49a1-be98-7ca1e219b72a@isocpp.org> article Path: news.gmane.org!not-for-mail From: FrankHB1989 Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Swapping with volatile lvalues Date: Tue, 21 Jun 2016 00:29:19 -0700 (PDT) Lines: 48 Approved: news@gmane.org Message-ID: <81998cb5-722e-49a1-be98-7ca1e219b72a@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_4197_932261116.1466494159053" X-Trace: ger.gmane.org 1466494172 9681 80.91.229.3 (21 Jun 2016 07:29:32 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 21 Jun 2016 07:29:32 +0000 (UTC) To: ISO C++ Standard - Future Proposals Original-X-From: std-proposals+bncBCTJVBPG3QIBBUGZUO5QKGQEKKFYYJA@isocpp.org Tue Jun 21 09:29:28 2016 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-pf0-f199.google.com ([209.85.192.199]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1bFG7e-00011S-85 for gclcip-std-proposals@m.gmane.org; Tue, 21 Jun 2016 09:29:22 +0200 Original-Received: by mail-pf0-f199.google.com with SMTP id 143sf16978981pfx.0 for ; Tue, 21 Jun 2016 00:29:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=isocpp-org.20150623.gappssmtp.com; s=20150623; h=date:from:to:message-id:subject:mime-version:x-original-sender :reply-to:precedence:mailing-list:list-id:x-spam-checked-in-group :list-post:list-help:list-archive:list-subscribe:list-unsubscribe; bh=YgvQEdBI12i5C8qply3cT82K5CypMtAQisoHVTT3kaM=; b=GxZugMdjteXJs6GbS0fF9FYTmkSCgpeQM3aBnf1BGoMwJB3tYD8azq23CrEDCp1N98 zjz1gdTxV16BcaDvhJBXkpl1uHU8yG8hWPRIlr6nVYXxrKjTzd2/2lDFjoqkN6SHTbL7 McN1VdfwrJCVemz/LeJsbpTEHkrjDIrDiJQXHd4pSEhFu9D+UIeqkZHSnTnCTpE2SZkR CheVhBmnnGfeM3s/sCYcsPLzN+vmkVN9qRHBNZ2U32D2gpuRjGW1IFSxaPP/u8OBrCUH Zp4fDdpdEujrony5/TsJtbNEp3ALN/Dan/6nnWwI0ear94KQZ3zAOoOTOehghwBTUFLf Umaw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=date:from:to:message-id:subject:mime-version:x-original-sender :reply-to:precedence:mailing-list:list-id:x-spam-checked-in-group :list-post:list-help:list-archive:list-subscribe:list-unsubscribe; bh=YgvQEdBI12i5C8qply3cT82K5CypMtAQisoHVTT3kaM=; b=dfmv4WziBk0J2FRD+H9l+HslSy1ZmINY6w/jFN895kNFgI3YqhGr5bPx8/yr4jZt9J eXHAWd+XWvwLWeijzRW20ESCxYJwl9lynC9Huxuy5Tx9LJPLoa0bN/v5JJ9+imI6tIul mxTZELr5U8cl8Wp6keO9fs5ex5ztU8hfMBkENsOgQ39/55N3DJgocqWOVkB3anMRhSrc ykEUc7c7aip4g5/S9eHBho0O9wTEB2X9JRnrVRMPOfVYeqT5uNVms/HpTRarrNOG+e6n x0cfhEsTR3NCMcLr1ximWh8E/f0QxjwUGM8WkLxeiEQK50p7KySZJfFnyNT82zeR0ek4 +8qQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:date:from:to:message-id:subject:mime-version :x-original-sender:reply-to:precedence:mailing-list:list-id :x-spam-checked-in-group:list-post:list-help:list-archive :list-subscribe:list-unsubscribe; bh=YgvQEdBI12i5C8qply3cT82K5CypMtAQisoHVTT3kaM=; b=iPb8JEFxKt4QhK6XWDYO332aHhBqmDdER3LWI6pbd72dw7r6joPIucoXpsRI38w3nA jl865w1VukVSfhm+PKROHqvAK7FtwgeXhNN2rbvzi+fsnj0TUUbERWkNPGY+H8akvriq n3rIip9+B4XfxE5a1gnCsscnIPqFzxtoq2apYVbVv/xmwfCkDHe0CfzgrNytyyu6GXO0 QSNZqD/1maNK3OAYR2a/hXPZbVSkP5oa88fqTMtlMWsJo2sAfnIm6TgBth8mQjX8N9h1 czdnxi10xf8RwSVl/zXW1BS+rawJBb3Xg1PWQVoakRMopPfBiouE+Bor2otD3cJaoiEh u+kQ== X-Gm-Message-State: ALyK8tJCXYyAPJD6UrZrRR6Lh2sraOUY60k0qR7vAkMfVoQDeoWNL6FDQGBzrF5nZIPpJg== X-Received: by 10.67.3.138 with SMTP id bw10mr20562844pad.16.1466494161094; Tue, 21 Jun 2016 00:29:21 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.107.160.75 with SMTP id j72ls495274ioe.13.gmail; Tue, 21 Jun 2016 00:29:19 -0700 (PDT) X-Received: by 10.36.40.146 with SMTP id h140mr32508ith.1.1466494159960; Tue, 21 Jun 2016 00:29:19 -0700 (PDT) X-Original-Sender: frankhb1989@gmail.com Precedence: list Mailing-list: list std-proposals@isocpp.org; contact std-proposals+owners@isocpp.org List-ID: X-Spam-Checked-In-Group: std-proposals@isocpp.org 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:26361 Archived-At: ------=_Part_4197_932261116.1466494159053 Content-Type: multipart/alternative; boundary="----=_Part_4198_936751888.1466494159053" ------=_Part_4198_936751888.1466494159053 Content-Type: text/plain; charset=UTF-8 I find swapping between the non-volatile and volatile lvalues may be useful, e.g. to save/restore errno where it has volatile type. Though it is easy to roll my own wheels, is it being considered in the standard, e.g. `templatevoid swap(T, volatile&) noexcept`? -- 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. To view this discussion on the web visit https://groups.google.com/a/isocpp.org/d/msgid/std-proposals/81998cb5-722e-49a1-be98-7ca1e219b72a%40isocpp.org. ------=_Part_4198_936751888.1466494159053 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
I find swapping between the non-volatile and volatile lval= ues may be useful, e.g. to save/restore errno where it has volatile type. T= hough it is easy to roll my own wheels, is it being considered in the stand= ard, e.g. `template<typename T>void swap(T, volatile&) noexcept`?=

--
You received this message because you are subscribed to the Google Groups &= quot;ISO C++ Standard - Future Proposals" group.
To unsubscribe from this group and stop receiving emails from it, send an e= mail to std-proposa= ls+unsubscribe@isocpp.org.
To post to this group, send email to std-proposals@isocpp.org.
To view this discussion on the web visit https://groups.google.= com/a/isocpp.org/d/msgid/std-proposals/81998cb5-722e-49a1-be98-7ca1e219b72a= %40isocpp.org.
------=_Part_4198_936751888.1466494159053-- ------=_Part_4197_932261116.1466494159053-- .