220 14495 <1475323.QBNzPAHAPV@tjmaciei-mobl4> article Path: news.gmane.org!not-for-mail From: Thiago Macieira Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: Range-based if Date: Wed, 12 Nov 2014 13:13:18 +0900 Lines: 30 Approved: news@gmane.org Message-ID: <1475323.QBNzPAHAPV@tjmaciei-mobl4> References: 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 1415765613 16897 80.91.229.3 (12 Nov 2014 04:13:33 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 12 Nov 2014 04:13:33 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCB4TK757YBRBZF4RORQKGQEMQRXV5A@isocpp.org Wed Nov 12 05:13:26 2014 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-wi0-f200.google.com ([209.85.212.200]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1XoPJ7-0003Em-Sy for gclcip-std-proposals@m.gmane.org; Wed, 12 Nov 2014 05:13:25 +0100 Original-Received: by mail-wi0-f200.google.com with SMTP id h11sf1444344wiw.3 for ; Tue, 11 Nov 2014 20:13:25 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:subject:date:message-id:user-agent :in-reply-to:references:mime-version: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=HgCXy/1/Y97QAvFnCjFVIHyQUn75V+QYRvkhBnByGvA=; b=ZCisU8giTjgDrvzl6o8nq4oae+zhLWbfKK+jkqK6MXVff1ZBQ1jYUhzZl3S5NkBNPy 0dfXL35dWCzK1E3VzlAsslRshv0FTzf0B4KfTghCTD+3khzzfWDh+GIRUCCxg1AvMAgo YGewqV4eK9otIiQC75DWcdw6m3dc+P37hQpaqtG9yn//ru8NBYd12W5euT7ySaCeNJ2z 9GAAvyqAJA3I7rvQR0xZCmnop822AT21D70HpL6iahNs+j7I+hfi9VFPAzb7U6kNCTlU TGoXrDK34Yqh5F763rrC3Qki1jV4blJJS1BVfYfrBEMyLg5b0865zOLooGmeOenFsHE2 zFZw== X-Gm-Message-State: ALoCoQlVvNDY5ZlfCuCbaFJDD8P2Sd7r9P/nfb2n6+qFc4sD90aPBjWcycDSlz6t52QqcWEawndK X-Received: by 10.180.101.170 with SMTP id fh10mr6090233wib.4.1415765605541; Tue, 11 Nov 2014 20:13:25 -0800 (PST) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.181.11.229 with SMTP id el5ls262592wid.36.canary; Tue, 11 Nov 2014 20:13:24 -0800 (PST) X-Received: by 10.180.198.145 with SMTP id jc17mr2315174wic.67.1415765604495; Tue, 11 Nov 2014 20:13:24 -0800 (PST) Original-Received: from gondolin.macieira.info (gondolin.macieira.info. [2a01:4f8:d13:f81:21c:14ff:fe01:12a3]) by mx.google.com with ESMTP id p8si25810722wia.96.2014.11.11.20.13.24 for ; Tue, 11 Nov 2014 20:13:24 -0800 (PST) Received-SPF: pass (google.com: domain of thiago@macieira.org designates 2a01:4f8:d13:f81:21c:14ff:fe01:12a3 as permitted sender) client-ip=2a01:4f8:d13:f81:21c:14ff:fe01:12a3; Original-Received: from tjmaciei-mobl4.localnet (jfdmzpr03-ext.jf.intel.com [134.134.139.72]) by gondolin.macieira.info (Postfix) with ESMTPSA id 7C46F11BD16 for ; Tue, 11 Nov 2014 20:13:23 -0800 (PST) User-Agent: KMail/4.14.2 (Linux/3.16.6-2-desktop; KDE/4.14.2; x86_64; ; ) In-Reply-To: X-Original-Sender: thiago@macieira.org X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of thiago@macieira.org designates 2a01:4f8:d13:f81:21c:14ff:fe01:12a3 as permitted sender) smtp.mail=thiago@macieira.org 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:14495 Archived-At: On Tuesday 11 November 2014 20:39:32 Brent Friedman wrote: > Anecdotally, in our codebase of a million or so LOC, this pattern of using > a looping structure to get the first element in a range constituted about > 70% of our unreachable code instances. I must be missing something: what wasn't reachable? All three non-comment lines in your example would be executed for a non-empty range: for (auto& Item : range) { DoSomething(Item); break; } -- Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org Software Architect - Intel Open Source Technology Center PGP/GPG: 0x6EF45358; fingerprint: E067 918B B660 DBD1 105C 966C 33F5 F005 6EF4 5358 -- --- 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/. .