220 24558 article Path: news.gmane.org!not-for-mail From: Zhihao Yuan Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: throwaway variable Date: Sat, 20 Feb 2016 16:21:59 -0600 Lines: 38 Approved: news@gmane.org Message-ID: References: <9658e852-6254-4ecf-a6d4-879160d4de7d@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 X-Trace: ger.gmane.org 1456006929 27632 80.91.229.3 (20 Feb 2016 22:22:09 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 20 Feb 2016 22:22:09 +0000 (UTC) To: "std-proposals@isocpp.org" Original-X-From: std-proposals+bncBCSKRWMD4EHBBCGOUO3AKGQEZZ4QMGQ@isocpp.org Sat Feb 20 23:22:02 2016 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-ig0-f199.google.com ([209.85.213.199]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1aXFuc-0005TK-7d for gclcip-std-proposals@m.gmane.org; Sat, 20 Feb 2016 23:22:02 +0100 Original-Received: by mail-ig0-f199.google.com with SMTP id dp10sf213820974igc.0 for ; Sat, 20 Feb 2016 14:22:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=miator-net.20150623.gappssmtp.com; s=20150623; h=sender: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:x-spam-checked-in-group:list-post:list-help:list-archive :list-subscribe:list-unsubscribe; bh=O1mIcSlCKFc+sueyX6P+qBnPUPgRpgEJJxdFrwYxw3g=; b=bWWK3MxZrqST0jkRDpsGyyxrF+bRur8YGUxbDh1SSUToczZ7xRte8Vvw3GywpAXj94 gKt/VoK5YVb/v2luGQzYYtFK+WeoI3f2wBdE+EoYKrEs9Ws4q4uwhxKGUkxTsSgA1Tp6 5VKh840DYUgbqfxUlrdMIt7X270i0fTTUcTcKgxh/WUj9xYO9Wqyj7nbloPfbH6rZwdf 6/quvVfEX+IbByPvCaak22G2Uiv08ZViEJ7pcJWBz5q06lPaZWfhwQKFhgloejhorVyZ lC5Z2IKIrsArn2MIasT1E6JrytNri40+Elu5f51PcZjHb4+nZvmX4kfSp441TUChgBLZ S0Tw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:sender: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:x-spam-checked-in-group:list-post:list-help:list-archive :list-subscribe:list-unsubscribe; bh=O1mIcSlCKFc+sueyX6P+qBnPUPgRpgEJJxdFrwYxw3g=; b=KwTr+17V3KwdRZ8amRQ9HXW9tPdicLYQvGIcqmVIAqipFGCdyxYbxibBDyUnaOTWkR ELNAi6xLp8GdpnY9VyKThGm3VmyBtqny0f2WccUThtyo0KrpwHrOhh2AOTeiXEqdlBIE c6eQBe4TdXfFEkj+jWqV8+iKb/bMfyXbrVvX7N3g15LcDmleK65x12XsXZELsDF4Q0bC wLGZm/on3DfmjlsrTufiSjvlKJWXWkQBba4lzTtcPm4SdRBidIvK2wjC0RrP6Wcz6rQ3 LvuNJDSyiPtTigwBnbMcL/JQKdAzVb6evlv8p6M0BXZWE/VuUtJU2OrlrwsuNB2Ilfqr TRcg== X-Gm-Message-State: AG10YOTo3fTES9P9wU1XhNjV+vOFkbJF9wlyWCZQV/UOL4FrFwRuzafNw/o2mB8IPEp7Gw== X-Received: by 10.182.119.199 with SMTP id kw7mr19438426obb.15.1456006921369; Sat, 20 Feb 2016 14:22:01 -0800 (PST) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.140.81.106 with SMTP id e97ls748184qgd.67.gmail; Sat, 20 Feb 2016 14:21:59 -0800 (PST) X-Received: by 10.140.102.11 with SMTP id v11mr25708810qge.39.1456006919971; Sat, 20 Feb 2016 14:21:59 -0800 (PST) Original-Received: from mail-s68.mailgun.info (mail-s68.mailgun.info. [184.173.153.196]) by mx.google.com with ESMTPS id t28si2202447qki.27.2016.02.20.14.21.59 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 20 Feb 2016 14:21:59 -0800 (PST) Received-SPF: pass (google.com: domain of bounce+3f9131.69110-std-proposals=isocpp.org@miator.net designates 184.173.153.196 as permitted sender) client-ip=184.173.153.196; Original-Sender: zy@miator.net X-Mailgun-Sid: WyI3MTBkYiIsICJzdGQtcHJvcG9zYWxzQGlzb2NwcC5vcmciLCAiNjkxMTAiXQ== Original-Received: from mail-io0-f175.google.com (mail-io0-f175.google.com [209.85.223.175]) by mxa.mailgun.org with ESMTP id 56c8e707.7fad290a65f0-in06; Sat, 20 Feb 2016 22:21:59 -0000 (UTC) Original-Received: by mail-io0-f175.google.com with SMTP id z135so144012304iof.0 for ; Sat, 20 Feb 2016 14:21:59 -0800 (PST) X-Received: by 10.107.19.90 with SMTP id b87mr23740374ioj.11.1456006919406; Sat, 20 Feb 2016 14:21:59 -0800 (PST) Original-Received: by 10.79.38.6 with HTTP; Sat, 20 Feb 2016 14:21:59 -0800 (PST) In-Reply-To: X-Gmail-Original-Message-ID: X-Original-Sender: zy@miator.net X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of bounce+3f9131.69110-std-proposals=isocpp.org@miator.net designates 184.173.153.196 as permitted sender) smtp.mailfrom=bounce+3f9131.69110-std-proposals=isocpp.org@miator.net; dkim=pass header.i=@miator.net 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:24558 Archived-At: On Sat, Feb 20, 2016 at 4:11 PM, 'Jeffrey Yasskin' via ISO C++ Standard - Future Proposals wrote: > I do still think that __ is the most likely > name for the concept. I'd rather see a syntax like `if` but not branching: with (locking()) { // ... } with (auto f = open_file(...)) // ... For this use case, for(auto _ : {1, 2, 3}) { } I think, maybe, we can just allow range-for to have no declarator: for ({1, 2, 3}) { } -- Zhihao Yuan, ID lichray The best way to predict the future is to invent it. ___________________________________________________ 4BSD -- http://bit.ly/blog4bsd -- 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/CAGsORuBYcweY31s-U_gOaSapBzNjxgOCmCuUp4r%3D6ZrA0oOQnA%40mail.gmail.com. .