220 136 article Path: news.gmane.org!not-for-mail From: Nevin Liber Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Anonymous or unnamed variables Date: Tue, 13 Nov 2012 16:25:41 -0600 Lines: 65 Approved: news@gmane.org Message-ID: References: <50A2BFD2.8040007@wanadoo.fr> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary=0015174a05503deb1004ce67fd15 X-Trace: ger.gmane.org 1352845935 13155 80.91.229.3 (13 Nov 2012 22:32:15 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 13 Nov 2012 22:32:15 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCE35H5S6IDBB34UROCQKGQETYEC7HY@isocpp.org Tue Nov 13 23:32:26 2012 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-wi0-f198.google.com ([209.85.212.198]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1TYP1t-0004WT-CG for gclcip-std-proposals@m.gmane.org; Tue, 13 Nov 2012 23:32:25 +0100 Original-Received: by mail-wi0-f198.google.com with SMTP id c10sf2800455wiw.9 for ; Tue, 13 Nov 2012 14:32:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-beenthere:received-spf: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:x-google-group-id:list-post:list-help:list-archive :list-subscribe:list-unsubscribe:content-type; bh=EG3Jz17/U6r5pFFXEllWUDCs/DqUDO/sYoq/16M0tvo=; b=fcduukoWxPXN5EVGdOVefKbbx5ZhJWisQ0b6hwiVXh77hgTpiyqNNfWOkRwgc18ZII 3rGl6WAD0SyyOIP4a339ndPc6cS4PgOZof7ZCfz3h7To/rM0E2CXd7W9D8E9T1QJFrSX N1ioaxHMjlLBSgoX3yvsybMhHiXS8TDj2XFJCdtCo2juH9g6pjgCP6bTaxHjHgEsDWXt /tvIG89m7+VdtjnmvGNqNTBlFgpM09d6DBXo76jJBzdKmpZ+Gx+gMoGENEhBpsVY9/yG BzQsSLxoKzctvk2FTjnrAhCyfOsDvt1uyGRQuauNSd1/oWJpcMbbz1PHYJ7t+JeGg4U6 hGxA== Original-Received: by 10.204.10.80 with SMTP id o16mr700811bko.4.1352845935259; Tue, 13 Nov 2012 14:32:15 -0800 (PST) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.204.0.70 with SMTP id 6ls7949508bka.2.gmail; Tue, 13 Nov 2012 14:32:14 -0800 (PST) Original-Received: by 10.204.157.144 with SMTP id b16mr8315612bkx.19.1352845933957; Tue, 13 Nov 2012 14:32:13 -0800 (PST) Original-Received: by 10.204.157.144 with SMTP id b16mr8315611bkx.19.1352845933909; Tue, 13 Nov 2012 14:32:13 -0800 (PST) Original-Received: from mail-bk0-f50.google.com (mail-bk0-f50.google.com [209.85.214.50]) by mx.google.com with ESMTPS id jd12si8525699bkc.56.2012.11.13.14.32.12 (version=TLSv1/SSLv3 cipher=OTHER); Tue, 13 Nov 2012 14:32:12 -0800 (PST) Received-SPF: pass (google.com: domain of nliber@gmail.com designates 209.85.214.50 as permitted sender) client-ip=209.85.214.50; Original-Received: by mail-bk0-f50.google.com with SMTP id jf3so1057817bkc.9 for ; Tue, 13 Nov 2012 14:32:12 -0800 (PST) Original-Received: by 10.204.147.212 with SMTP id m20mr3492048bkv.103.1352845932489; Tue, 13 Nov 2012 14:32:12 -0800 (PST) Original-Sender: nliber@gmail.com Original-Received: by 10.205.118.133 with HTTP; Tue, 13 Nov 2012 14:25:41 -0800 (PST) In-Reply-To: <50A2BFD2.8040007@wanadoo.fr> X-Original-Sender: nliber@gmail.com X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of nliber@gmail.com designates 209.85.214.50 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:136 Archived-At: --0015174a05503deb1004ce67fd15 Content-Type: text/plain; charset=ISO-8859-1 On 13 November 2012 15:46, Vicente J. Botet Escriba < vicente.botet@wanadoo.fr> wrote: > > One of the features of these unnamed variables could be that we can not do > anything with, so maybe the compiler could take advantage in order to > optimize the code. > I can't imagine how. Do you have a scenario in mind? > I recognize that the added value is minor, but I'm sure that you have > already desired to not name these variables. > Given the cost to adding language features, I just don't see a compelling case. -- Nevin ":-)" Liber (847) 691-1404 -- --0015174a05503deb1004ce67fd15 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On 13 November 2012 15:46, Vicente J. Botet Escriba <<= a href=3D"mailto:vicente.botet@wanadoo.fr" target=3D"_blank">vicente.botet@= wanadoo.fr> wrote:

One of the features of these unnamed variables could be that we can not do = anything with, so maybe the compiler could take advantage in order to optim= ize the code.

I can't imagine how.=A0 Do you h= ave a scenario in mind?
=A0
I recognize that the added value is minor, but I'm sure that you have a= lready desired to not name these variables.

Given = the cost to adding language features, I just don't see a compelling cas= e.
--
=A0Nevin ":-)" Liber=A0 <mailto:nevin@eviloverlord.com= >=A0 (847) 691-1404

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