220 18256 <3050923.b2Rhyxlh9P@tjmaciei-mobl4> article Path: news.gmane.org!not-for-mail From: Thiago Macieira Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: Core Language feature: Multiple assignments from multiple return values via tuple Date: Wed, 27 May 2015 10:44:45 -0700 Lines: 37 Approved: news@gmane.org Message-ID: <3050923.b2Rhyxlh9P@tjmaciei-mobl4> References: <69a59613-6504-466a-9878-786653d6087f@isocpp.org> <2351280.s4gqeZa1uH@tjmaciei-mobl4> 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 1432748710 10322 80.91.229.3 (27 May 2015 17:45:10 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 27 May 2015 17:45:10 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCB4TK757YBRBEMFTCVQKGQEWY5W5HY@isocpp.org Wed May 27 19:44:59 2015 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-wg0-f69.google.com ([74.125.82.69]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1YxfNq-0004Xv-NJ for gclcip-std-proposals@m.gmane.org; Wed, 27 May 2015 19:44:50 +0200 Original-Received: by wgla2 with SMTP id a2sf4572161wgl.1 for ; Wed, 27 May 2015 10:44:50 -0700 (PDT) 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=kWf5m7voJGGfqHRojoJSMy5xC4p0jTcjoOE7j4Mc4YE=; b=FZjdboUamTB4I4ZV1SispLhQP9rjb/5fXRe+gI1aUeXLDEv+lzxz47qqs3jZh/a55w qhZaFCXOmiH9jnkYyEUAX1YKp+ybj8w3JGCz+7/uNx2li5fKHisWxvZ2mAIpZI+Cx+SF slztyxGFMHiYRHABGdVpuh8nnmplywBU/7upZaBGZmXOlt+79VM1J2HyVxsrhV6UQXdw PYi5hRZLi9SkKsQnWd0TgFqw0+wQ9ZIv6D699gFp7ebdoUyofHHBBfQ7tSktipa/Ev7s J9Oso4v6wFcw8EjKOG/WxTa7qoTNGmNEcGAWpHyqWMqvEj+yPFOY8XcmL+XzDD0QVf+d Z1fg== X-Gm-Message-State: ALoCoQkDCbaEblX9tPSiDu6deQMYXu6PCzvGH1Y5O15PYkTToW1UWqf/P5wzG60hqW62czytLMQd X-Received: by 10.112.28.111 with SMTP id a15mr33088110lbh.21.1432748690112; Wed, 27 May 2015 10:44:50 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.180.96.234 with SMTP id dv10ls943126wib.35.canary; Wed, 27 May 2015 10:44:48 -0700 (PDT) X-Received: by 10.180.77.8 with SMTP id o8mr8323079wiw.74.1432748688533; Wed, 27 May 2015 10:44:48 -0700 (PDT) Original-Received: from gondolin.macieira.info (gondolin.macieira.info. [2a01:4f8:d13:f81:21c:14ff:fe01:12a3]) by mx.google.com with ESMTP id ew3si25105165wib.87.2015.05.27.10.44.48 for ; Wed, 27 May 2015 10:44:48 -0700 (PDT) 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 C5F4711A25D for ; Wed, 27 May 2015 10:44:47 -0700 (PDT) User-Agent: KMail/4.14.6 (Linux/4.0.3-1-desktop; KDE/4.14.6; 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:18256 Archived-At: On Wednesday 27 May 2015 12:44:11 Matthew Woehlke wrote: > > template auto void do(T &&t) > > { > > return SomeAction(), t(); > > } > > > > > > > > [int, float] void f(); > > > > > > > > Does do return [int, float]? Or does it return [SomeAction, [int, > > float]]? > The former; 'do' wasn't explicitly declared to have MRV. (This is even > if we allow MRV without new syntax, which as stated, I'm not comfortable > with, for the same reasons you're objecting to it.) Ok, so template decltype(t()) do(T &&); Is that an explicit MRV? -- 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/. .