220 17987 article Path: news.gmane.org!not-for-mail From: "'Jeffrey Yasskin' via ISO C++ Standard - Future Proposals" Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Parsing Numbers Date: Tue, 19 May 2015 08:37:36 -0700 Lines: 24 Approved: news@gmane.org Message-ID: References: <555A54B8.8000007@gmx.net> <555ADDEF.5070007@gmx.net> 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 1432049885 9842 80.91.229.3 (19 May 2015 15:38:05 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 19 May 2015 15:38:05 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBDDM34EO6QDRBVNR5WVAKGQEGQI226Q@isocpp.org Tue May 19 17:38:00 2015 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-oi0-f70.google.com ([209.85.218.70]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Yujah-0004Ds-BT for gclcip-std-proposals@m.gmane.org; Tue, 19 May 2015 17:37:59 +0200 Original-Received: by oiko83 with SMTP id o83sf25790008oik.0 for ; Tue, 19 May 2015 08:37:58 -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:from:date :message-id:subject:to:content-type:x-original-sender :x-original-authentication-results:reply-to:precedence:mailing-list :list-id:list-post:list-help:list-archive:list-subscribe :list-unsubscribe; bh=+D2f9P1IBzueBTK+UDEMn7fyKgtudxiy7dAyvKMREjs=; b=kqlsEVTIFxydayjdIzJZhQLELxKd5qZ9D+ZkjSjfEQppzCiKfMT8tdteXb38Kxrf6W mmzU2b4btxA5pmpg+SqLi5lmDnvh1Or6jTyPVoZPOYP0mnpGsUmJNB/nceN8ArXs+Skz UY9hj7urJRGLo8UiOD467dDQSxgUsZcL2ylA35bCbBOea6PivfNcTxk9Dij4H2TsGH7p Zrm8/RGrZyheuhWz+e6zb/KisjJ5WpEaNu6M/mJnFteKQSD7ht+LMF7hnj/k0KhuyKxh 6NXPnVJLgh00Gspl0Dg1p9qIqYwwz2oJOsV7sZA8+RjogUWi4IDr6hH2AOWe8Cer3bOs MWiQ== X-Gm-Message-State: ALoCoQkLRhyqfRJX6UmoxncjaVgs0Ya5e7HtVvbLCvVK3Ie+OUe8jOdxEKkZdMu0fH2tahDIfati X-Received: by 10.50.23.100 with SMTP id l4mr26009318igf.1.1432049878343; Tue, 19 May 2015 08:37:58 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.107.138.223 with SMTP id c92ls206628ioj.104.gmail; Tue, 19 May 2015 08:37:57 -0700 (PDT) X-Received: by 10.107.13.11 with SMTP id 11mr37772244ion.70.1432049877719; Tue, 19 May 2015 08:37:57 -0700 (PDT) Original-Received: from mail-ig0-x22e.google.com (mail-ig0-x22e.google.com. [2607:f8b0:4001:c05::22e]) by mx.google.com with ESMTPS id b142si10488362ioe.42.2015.05.19.08.37.57 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 19 May 2015 08:37:57 -0700 (PDT) Received-SPF: pass (google.com: domain of jyasskin@google.com designates 2607:f8b0:4001:c05::22e as permitted sender) client-ip=2607:f8b0:4001:c05::22e; Original-Received: by igbyr2 with SMTP id yr2so78980001igb.0 for ; Tue, 19 May 2015 08:37:57 -0700 (PDT) X-Received: by 10.43.84.73 with SMTP id aj9mr6916242icc.69.1432049877263; Tue, 19 May 2015 08:37:57 -0700 (PDT) Original-Received: by 10.64.73.2 with HTTP; Tue, 19 May 2015 08:37:36 -0700 (PDT) In-Reply-To: X-Original-Sender: jyasskin@google.com X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of jyasskin@google.com designates 2607:f8b0:4001:c05::22e as permitted sender) smtp.mail=jyasskin@google.com; dkim=pass header.i=@google.com; dmarc=pass (p=REJECT dis=NONE) header.from=google.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: , X-Original-From: Jeffrey Yasskin Xref: news.gmane.org gmane.comp.lang.c++.isocpp.proposals:17987 Archived-At: On Tue, May 19, 2015 at 3:34 AM, Olaf van der Spek wrote: > 2015-05-19 8:53 GMT+02:00 Jens Maurer : >>> Why? Performance? >> >> Yes. In most use cases, you know at compile-time which base you >> expect. I believe an appropriate interface should allow me to >> convey that compile-time information to the callee. > > IMO the optimizer should take care of that. Your opinion (and Jens's opinion) don't actually matter here. Whoever writes the paper should investigate what optimizers actually do and describe it in the paper. Jeffrey -- --- 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. Visit this group at http://groups.google.com/a/isocpp.org/group/std-proposals/. .