220 9875 article Path: news.gmane.org!not-for-mail From: Johannes Schaub Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: auto variable templates? Date: Mon, 17 Mar 2014 11:31:04 +0100 Lines: 82 Approved: news@gmane.org Message-ID: References: <87y50a8tr4.fsf@euclid.axiomatics.org> <4DFE3296-D96E-421A-9F3A-5F43613B94D7@gmail.com> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary=047d7b6dc31eb3573204f4caeaa3 X-Trace: ger.gmane.org 1395052266 5220 80.91.229.3 (17 Mar 2014 10:31:06 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 17 Mar 2014 10:31:06 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCQPNCEZSQNBB2U5TOMQKGQEZ5I7GYA@isocpp.org Mon Mar 17 11:31:15 2014 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-pa0-f69.google.com ([209.85.220.69]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1WPUp2-0006Pb-Oy for gclcip-std-proposals@m.gmane.org; Mon, 17 Mar 2014 11:31:09 +0100 Original-Received: by mail-pa0-f69.google.com with SMTP id fb1sf14003215pad.4 for ; Mon, 17 Mar 2014 03:31:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :x-original-sender:x-original-authentication-results:reply-to :precedence:mailing-list:list-id:list-post:list-help:list-archive :list-subscribe:list-unsubscribe:content-type; bh=Pof5N51PFDQ2Sj7M3920s7g6xnCCPqOUU18/QxMKUS4=; b=q/Lotjl8tAuK5FgR63EilqKKUTz6T+BQSbS57/g70fEDMxZl4LaA23p/dEG/Wi/1kK pAyrcNdg/9cqxLmEvNZUf7G+VWCGz5HBvBQOo2SFFEK4TqjeT02I9LcSYz317qey/lWy XOv8LWmz3Y3IxTEm4bL01TIcmHiCMwc8EnhTnUN3LLynQ+9GmvOUNlEm1GKAErhaVTq0 dJmixny5p1m7+sXWCj2ZHPIVVDDrA7jglVeG2Yee/SB3QyI6xaYhIhUJ71GLwgPQgBaM HfhjNOGKbh9nd6E9HO/WbNEi+uh0HHsi1h5qplZlvovnoBcx5Gzm2Lgpumgt6w3vx+Ha p6Og== 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:date :message-id:subject:from:to:x-original-sender :x-original-authentication-results:reply-to:precedence:mailing-list :list-id:list-post:list-help:list-archive:list-subscribe :list-unsubscribe:content-type; bh=Pof5N51PFDQ2Sj7M3920s7g6xnCCPqOUU18/QxMKUS4=; b=B6I/ATwftSjXW8cMsyTyVaZMgUxyNHSmu4yJjC8EKj5LVJMMv/qPU2cbbBCMmrShyp V4ov/Ww0Mj2B61flqh6CeAi96xwM2ykHYasirXo0RFezPwtzeJcDlw+OhtgPrY+LmL31 Kd2rXBu1/ShUm0/yTVQIrz8pzhvDsrs6vs8WeYW2PcT5NzCKm7t8KAmuvfD+J6WZAt1z v0bGdNLvSZOKcom7Alf16ELvURLbbz69n/nMsuIAqhQCPPhsixKGkaesIQQ+FFlrOOEr vGiNwTtJT3FNwV5VwJ3ptKQLjbu8NZjgZpIKq7ZiVyN5jJeBDRrFwUYelkVX8QziZ7uI 3iSQ== X-Gm-Message-State: ALoCoQlz8wsB3YCLl2EOD4T7OBhQYOUuzThOTpylzNHaH7nU+C5QxkITMw3WjhzvwO/8638gZDqt X-Received: by 10.66.150.106 with SMTP id uh10mr8782210pab.13.1395052267718; Mon, 17 Mar 2014 03:31:07 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.50.61.167 with SMTP id q7ls1027534igr.20.gmail; Mon, 17 Mar 2014 03:31:06 -0700 (PDT) X-Received: by 10.66.146.199 with SMTP id te7mr24861886pab.106.1395052266644; Mon, 17 Mar 2014 03:31:06 -0700 (PDT) Original-Received: from mail-pd0-x234.google.com (mail-pd0-x234.google.com [2607:f8b0:400e:c02::234]) by mx.google.com with ESMTPS id zt8si414857pbc.315.2014.03.17.03.31.05 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 17 Mar 2014 03:31:05 -0700 (PDT) Received-SPF: pass (google.com: domain of schaub.johannes@googlemail.com designates 2607:f8b0:400e:c02::234 as permitted sender) client-ip=2607:f8b0:400e:c02::234; Original-Received: by mail-pd0-f180.google.com with SMTP id v10so5404120pde.39 for ; Mon, 17 Mar 2014 03:31:05 -0700 (PDT) X-Received: by 10.66.150.69 with SMTP id ug5mr25229477pab.55.1395052265033; Mon, 17 Mar 2014 03:31:05 -0700 (PDT) Original-Received: by 10.68.216.97 with HTTP; Mon, 17 Mar 2014 03:31:04 -0700 (PDT) Original-Received: by 10.68.216.97 with HTTP; Mon, 17 Mar 2014 03:31:04 -0700 (PDT) In-Reply-To: <4DFE3296-D96E-421A-9F3A-5F43613B94D7@gmail.com> X-Original-Sender: schaub.johannes@googlemail.com X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of schaub.johannes@googlemail.com designates 2607:f8b0:400e:c02::234 as permitted sender) smtp.mail=schaub.johannes@googlemail.com; dkim=pass header.i=@googlemail.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:9875 Archived-At: --047d7b6dc31eb3573204f4caeaa3 Content-Type: text/plain; charset=ISO-8859-1 Am 17.03.2014 01:46 schrieb "David Krauss" : > > > On 2014-03-17, at 2:17 AM, Johannes Schaub wrote: > >> Since the template parameter is what is being ill-formed, it is >> important whether or not it will be part of the specialization of the >> template. > > > Because the template parameter declaration is ill-formed, it gets diagnosed immediately and does not form any larger structure. Hence there is no template to be specialized in the first place. There is no "being ill-formed", because ill-formedness implies the state of not being. > You must be seeing some difference to the auto case in the alias template. What is this difference, precisely? > -- -- --- 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/. --047d7b6dc31eb3573204f4caeaa3 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable


Am 17.03.2014 01:46 schrieb "David Krauss" <potswa@gmail.com>:
>
>
> On 2014–03–17, at 2:17 AM, Johannes Schaub <schaub.johannes@googlemail.com&g= t; wrote:
>
>> Since the template parameter is what is being ill-formed, it is >> important whether or not it will be part of the specialization of = the
>> template.
>
>
> Because the template parameter declaration is ill-formed, it gets diag= nosed immediately and does not form any larger structure. Hence there is no= template to be specialized in the first place. There is no “being il= l-formed”, because ill-formedness implies the state of not being.
>

You must be seeing some difference to the auto case in the a= lias template. What is this difference, precisely?

> --

--

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