220 31879 <7ccd774e-be7a-4696-aaf4-352e5571fbe5@isocpp.org> article Path: news.gmane.org!.POSTED!not-for-mail From: TONGARI J Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: This variable should not be named: an identifier (not) to remember Date: Wed, 29 Mar 2017 08:43:09 -0700 (PDT) Lines: 64 Approved: news@gmane.org Message-ID: <7ccd774e-be7a-4696-aaf4-352e5571fbe5@isocpp.org> References: <985b9b2a-c734-45eb-95f4-db4dc0d309a1@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_1484_1714623811.1490802189979" X-Trace: blaine.gmane.org 1490802193 20118 195.159.176.226 (29 Mar 2017 15:43:13 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 29 Mar 2017 15:43:13 +0000 (UTC) To: ISO C++ Standard - Future Proposals Original-X-From: std-proposals+bncBCC3NA775MLBBDVM57DAKGQE37ZTPOQ@isocpp.org Wed Mar 29 17:43:08 2017 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-pf0-f199.google.com ([209.85.192.199]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ctFkX-0004Vh-TS for gclcip-std-proposals@m.gmane.org; Wed, 29 Mar 2017 17:43:06 +0200 Original-Received: by mail-pf0-f199.google.com with SMTP id c77sf9179414pfd.14 for ; Wed, 29 Mar 2017 08:43:12 -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:in-reply-to:references: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=jZXJ4mVWzkJ8PIvYSnUD1VMgH3z/8Ipn+Q/FlRukvnk=; b=dKR0AVqmxi57OG2snbi3TvwwtP1Rwa2R2x/2yxdtGsyR+HQ4xwCtE8y9n2oyPBCy/z NvsydLSwZzO8L2e/7RmboowV1lqLhJGRTzy/ioI0XVSu0sBxWVTfsgULHCtR0ES4ZN1V Lq2/+oUufdDK61sQClJTwLkqX8p47LXFu7To5DkmlyVTK3OkpEvlC4YVb5sgPUySDsgG XSsZPHRT+pA66Atv8MPA+uMNmCStpIIU3yUERT/ivcWA4PXVDXP8ZY2Qxc9cVeLKzhjH 5uy68/qAQumrrJS1QnytRBtP0rF0tGoaOGYojzbNOIcXhzeR+oRmzJPrV+WZZ3r4so4f xy8Q== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:message-id:in-reply-to:references: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=jZXJ4mVWzkJ8PIvYSnUD1VMgH3z/8Ipn+Q/FlRukvnk=; b=cV5PWBgzuC0w8cRnu/6vGELrFap9r2ucASSvalIw4RK/5OAAF1LA3qAw2BUzM+VXEd jw01zY4MXlObqiu57/HmBz85rCq9nFDS9FeQ/WV4hj5zm0MfIAVUuFJ8UlrK0pysCAgW IqSG3VBw2LsKAE9Eiyk5goVfl0iPw7FvauXrz238ZlSZ/y1dq9TYcqRf2twjBcxxLoyJ iuXqD9hFIjJyzqJsvWdysCI9tWSegzHc67YFxP8WMP9gVvS8vhW1lA0A236mAop7JsES NIW/bxvIJXz3CJiqcEHoGAjLfLOvrlBQYdP11koG4WlmAO7Stqm+gZ2LV1sM4MZzza+q hyOA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:message-id:in-reply-to:references :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=jZXJ4mVWzkJ8PIvYSnUD1VMgH3z/8Ipn+Q/FlRukvnk=; b=l4GKB/0ldWDWe21R+4Ug8dwxQ/2ZuOpiL9n7cQRRdbiEcb1SXZcIzWFpA6gUHr/9DJ zZW4ozaBQerwAxU+Hy3m6rs+QZwwvw2dZd9n9/ZSOWlRI46VSxm1Smt66g2auLJjkjkn LoQnSjADHbMavfFFFqM4ppWlEXJC9wXuHMAQHrPARCnZg1es25IsneV53AC2/WuZdflg duwJwH1KKkS19L+M0PhCOI5NTJjuImRiEePq6PQ1gqdDvtiwhLpZFlHvDgrgPUf2MjJ0 IgiT7L5RVRqvb2tT6jvLqKiVRFz9OQozP8qv+PWInKgO6/Ge1O3wpc/xxNn4h0f4VoKu mLTA== X-Gm-Message-State: AFeK/H0Lqp4I7vt55IPy77XWFFSgfNZvn+VvPIkn1uvTeKvvRhxP+G78FcjcX/xAybYXxA== X-Received: by 10.99.126.24 with SMTP id z24mr395163pgc.119.1490802191540; Wed, 29 Mar 2017 08:43:11 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.157.2.98 with SMTP id 89ls15542344otb.22.gmail; Wed, 29 Mar 2017 08:43:10 -0700 (PDT) X-Received: by 10.157.32.10 with SMTP id n10mr215932ota.10.1490802190433; Wed, 29 Mar 2017 08:43:10 -0700 (PDT) In-Reply-To: X-Original-Sender: tongari95@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:31879 Archived-At: ------=_Part_1484_1714623811.1490802189979 Content-Type: multipart/alternative; boundary="----=_Part_1485_142073767.1490802189979" ------=_Part_1485_142073767.1490802189979 Content-Type: text/plain; charset=UTF-8 On Wednesday, March 29, 2017 at 12:34:29 AM UTC+8, Brittany Friedman wrote: > > Instead of __, I'd propose using ?. For example auto ? = scope_guard{...}. > ? isn't allowed in identifiers so it shouldn't conflict with existing > nonconformant code. ? is also shorter :) > You get my support :) FWIW, I have developed a "template declname parameter " feature which also uses `?` to represent "unnamed". That said, for lifetime extension, I'd prefer p0577 .. -- 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/7ccd774e-be7a-4696-aaf4-352e5571fbe5%40isocpp.org. ------=_Part_1485_142073767.1490802189979 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
On Wednesday, March 29, 2017 at 12:34:29 AM UTC+8, Brittan= y Friedman wrote:
Instead of __, I'd propose using ?. For example auto ? = =3D scope_guard{...}. ? isn't allowed in identifiers so it shouldn'= t conflict with existing nonconformant code. ? is also shorter :)

You get my support :)
FW= IW, I have developed a "template declname parameter= " feature which also uses `?` to represent "unnamed".
That said, for lifetime extension, I'd prefer=C2=A0p0577.

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