220 14508 <9020116.1vaR7e8TYO@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 13:36:51 -0800 Lines: 21 Approved: news@gmane.org Message-ID: <9020116.1vaR7e8TYO@tjmaciei-mobl4> References: <70a52592-8f61-4fc2-855e-f65d73af9be8@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 1415828242 32500 80.91.229.3 (12 Nov 2014 21:37:22 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 12 Nov 2014 21:37:22 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCB4TK757YBRBDFGR6RQKGQEGTEMA4A@isocpp.org Wed Nov 12 22:37:17 2014 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-wg0-f71.google.com ([74.125.82.71]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1XofbI-0000eV-Td for gclcip-std-proposals@m.gmane.org; Wed, 12 Nov 2014 22:37:16 +0100 Original-Received: by mail-wg0-f71.google.com with SMTP id b13sf7197125wgh.6 for ; Wed, 12 Nov 2014 13:37:16 -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=R+U0nAuo8OUPCw7vy2DczsQj/UkAKLYKT4fxs90epdw=; b=mBdG7NYfYaRx8GRMIHaitENjz7zuQo+lJ4ZwH+gvT7CcttpVLSAh2wKmaJV+i8+Xuj Ri4SrRXcDOKX6RDrTDlF9NzctpKuex8IxFr2XtXKkgh6I8GWZRBgohaQqCb8DCKbh4YR kXV7U2qJNMm5vRswHPT67tPnT8Zf8xTfXjCav9TS0UfbrUUAHvIhF4cysvL5IgxcqKoS /KHm0BLOLDe2LRzO4GrnvEzDZSGXkcf42KaPPbpbV+KTkWUDDDLK6aHmHZGVP6qOREu0 PeqlKoG3Smibmzw+6jwVl+w1GE8CTM3Z/Yn6wO4iLVOlOR+jxXDoTmPZzbYypsqSAv/z vo1w== X-Gm-Message-State: ALoCoQnHgM8oi03CrxxQ2ShJR3EG+zeSgo41C4YLReiFaB8c7xgyGk7cVop2qlrkedExbmYufd+G X-Received: by 10.112.147.131 with SMTP id tk3mr2184512lbb.2.1415828236522; Wed, 12 Nov 2014 13:37:16 -0800 (PST) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.181.13.18 with SMTP id eu18ls1479wid.6.canary; Wed, 12 Nov 2014 13:37:15 -0800 (PST) X-Received: by 10.194.185.68 with SMTP id fa4mr47767136wjc.83.1415828235751; Wed, 12 Nov 2014 13:37:15 -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 jt3si29483735wid.19.2014.11.12.13.37.15 for ; Wed, 12 Nov 2014 13:37:15 -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 (jfdmzpr06-ext.jf.intel.com [134.134.137.75]) by gondolin.macieira.info (Postfix) with ESMTPSA id 895C311BDCE for ; Wed, 12 Nov 2014 13:37:14 -0800 (PST) User-Agent: KMail/4.14.2 (Linux/3.16.6-2-desktop; KDE/4.14.2; x86_64; ; ) In-Reply-To: <70a52592-8f61-4fc2-855e-f65d73af9be8@isocpp.org> 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:14508 Archived-At: On Wednesday 12 November 2014 11:33:29 Olaf van der Spek wrote: > IMO it'd be nice if this was possible: > if (auto& range = GetTheRange()) All you need is that range's type provide a conversion to bool that indicates whether it's empty or not. -- 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/. .