220 6769 article Path: news.gmane.org!not-for-mail From: tomaszkam@gmail.com Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: Revision of N3702: Introducing an optional parameter for mem_fn. Date: Sun, 29 Sep 2013 07:35:27 -0700 (PDT) Lines: 60 Approved: news@gmane.org Message-ID: References: <0ffade3d-ac13-434c-b20a-85d611783fc1@isocpp.org> <2284c2d2-ec8e-43fb-90e7-c43ac9dc92c2@isocpp.org> <505813ae-956c-4693-b793-2ba47107c09c@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_184_33045817.1380465327980" X-Trace: ger.gmane.org 1380465331 11496 80.91.229.3 (29 Sep 2013 14:35:31 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 29 Sep 2013 14:35:31 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBDNPVXXG6IGBBMPVUCJAKGQEFKFPPPY@isocpp.org Sun Sep 29 16:35:34 2013 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-ie0-f199.google.com ([209.85.223.199]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1VQI5q-0003N9-JZ for gclcip-std-proposals@m.gmane.org; Sun, 29 Sep 2013 16:35:30 +0200 Original-Received: by mail-ie0-f199.google.com with SMTP id e14sf15726422iej.2 for ; Sun, 29 Sep 2013 07:35:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=date:from:to:message-id:in-reply-to:references:subject:mime-version :x-original-sender:reply-to:precedence:mailing-list:list-id :list-post:list-help:list-archive:list-subscribe:list-unsubscribe :content-type; bh=UJKZi01n84MvEqLUL6bEvWomr3RjzpgJPUE3GsiBSfE=; b=EMRbmwEJsphb/sT5m06Ou3vSj2566+cYSySAnBy0DqTgjpfHgnKRcFzDKqCFyzq2v+ Vv+Cz+YpvBTRZ/IPQN19YivZBjf+hsa86L+CQoKmOGnVd3L9i2hRahk8Q4Cij2XSVlKs ijQirO2mv3tGLUvSzQTx52pmrjPGQtJvqg7QbDw2V3geb84hVDCOVZEei7E+6YNHhKWB SlqDF4fHvCKIcF1HD9ytFpCAfYQc0LmHwcH5uTy+7hcFYb9hAFGTn05p62xag1PN1og0 59cq2n6pZ6bDlxzvz0reu1FHvEInICMTFXUn4Q9kxJKDmiaW8EXki908HOchSlwkQtXh oQOg== X-Received: by 10.42.247.68 with SMTP id mb4mr10577525icb.14.1380465329560; Sun, 29 Sep 2013 07:35:29 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.50.25.97 with SMTP id b1ls1331629igg.1.canary; Sun, 29 Sep 2013 07:35:29 -0700 (PDT) X-Received: by 10.50.102.97 with SMTP id fn1mr353353igb.16.1380465329136; Sun, 29 Sep 2013 07:35:29 -0700 (PDT) In-Reply-To: X-Original-Sender: tomaszkam@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:6769 Archived-At: ------=_Part_184_33045817.1380465327980 Content-Type: text/plain; charset=ISO-8859-1 > The* decltype(ts),* not* decltype(auto),* otherwise the type is not clear. > That was a mistake. As for the return *-> decltype(auto)*, it was always optional for lambdas, > especially it there is one return statement= > > No, the return ->auto is optional. The return decltype(auto) is necessary if the wrapped function returns by reference - by default lambda will deduce return by value. -- --- 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/. ------=_Part_184_33045817.1380465327980 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable

The decltype(ts), not de= cltype(auto), otherwise the type is not clear.

<= /div>
That was a mistake.

As for the return -> decltype(auto),= it was always optional for lambdas, especially it there is one return stat= ement=3D


No, the = return ->auto is optional. The return decltype(auto) is necessary if the= wrapped function returns by reference - by default lambda will deduce retu= rn by value.

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