220 8496 <52CF3AB0.7090102@gmail.com> article Path: news.gmane.org!not-for-mail From: David Krauss Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: A new keyword for either a type or a variable (typical use case for variadic template template)? Date: Fri, 10 Jan 2014 08:11:28 +0800 Lines: 17 Approved: news@gmane.org Message-ID: <52CF3AB0.7090102@gmail.com> References: <-5123564187529511709@gmail297201516> <52CB7506.1000906@gmail.com> <62bda680-3dd7-4be8-8ac5-0d2e08bf6d99@isocpp.org> <52CDFB2D.4050703@gmail.com> <-9126987679220332623@gmail297201516> <52CE0F54.5020800@gmail.com> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed X-Trace: ger.gmane.org 1389312706 9265 80.91.229.3 (10 Jan 2014 00:11:46 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 10 Jan 2014 00:11:46 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCW25A7E3QCRBRHVXSLAKGQE26DD64A@isocpp.org Fri Jan 10 01:11:52 2014 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-ie0-f198.google.com ([209.85.223.198]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1W1PhW-0005KY-Rm for gclcip-std-proposals@m.gmane.org; Fri, 10 Jan 2014 01:11:51 +0100 Original-Received: by mail-ie0-f198.google.com with SMTP id x13sf618347ief.1 for ; Thu, 09 Jan 2014 16:11:49 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:message-id:date:from:user-agent:mime-version:to :subject:references:in-reply-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=9HWYcbXJFjqLmMtW8nREq0jYiTCrVImVyV28aWs4Buk=; b=WBSkJybUkS33kgUVI9ShkuL0px8X4FhNCbRjaS56kQV7Tn3wGpL+LrnkBjPmIYMjlG /CwEtkYP7357XyerwQZj7ZuQMpS1NIzo/5CqR7MkAzVM+z4oD0CEr4QCJkUgrlWz7zxi KhjjWKdIqCsuYJqTMcNMfrn83IJqz7KrZYzUen3Yyy09gUZHbm6y+EM6tmF+DJa+TdCT Ai/mCs54+JlX/RtIm7Z04BMSqBtlTpcyFOelvvA/j5UWl0dNLOtc7zX+eKcYBCk+kXuV +NF//QvYjEQ4H6aYiNnMPDcTzUQxOzQR1cXX6VhFkTD4bBc//BJ9b3Ewt+oehAsE0osY gppw== X-Gm-Message-State: ALoCoQlX1b07UkUXpahOmRF4UL3F3LMv9+TaPQYFlWnUHh5Hik/p198JTjc/4ejElW8ilmnhpR3F X-Received: by 10.182.230.168 with SMTP id sz8mr2395884obc.9.1389312709652; Thu, 09 Jan 2014 16:11:49 -0800 (PST) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.49.121.98 with SMTP id lj2ls1349261qeb.45.gmail; Thu, 09 Jan 2014 16:11:48 -0800 (PST) X-Received: by 10.236.226.65 with SMTP id a61mr7987910yhq.109.1389312708899; Thu, 09 Jan 2014 16:11:48 -0800 (PST) Original-Received: from mail-pa0-x235.google.com (mail-pa0-x235.google.com [2607:f8b0:400e:c03::235]) by mx.google.com with ESMTPS id i68si6684535yhq.45.2014.01.09.16.11.48 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 09 Jan 2014 16:11:48 -0800 (PST) Received-SPF: pass (google.com: domain of potswa@gmail.com designates 2607:f8b0:400e:c03::235 as permitted sender) client-ip=2607:f8b0:400e:c03::235; Original-Received: by mail-pa0-f53.google.com with SMTP id hz1so3964128pad.26 for ; Thu, 09 Jan 2014 16:11:48 -0800 (PST) X-Received: by 10.66.66.202 with SMTP id h10mr7100401pat.70.1389312708060; Thu, 09 Jan 2014 16:11:48 -0800 (PST) Original-Received: from Davids-MacBook-Pro.local ([121.54.44.159]) by mx.google.com with ESMTPSA id by1sm12703802pbd.25.2014.01.09.16.11.36 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 09 Jan 2014 16:11:46 -0800 (PST) User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 In-Reply-To: X-Original-Sender: potswa@gmail.com X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of potswa@gmail.com designates 2607:f8b0:400e:c03::235 as permitted sender) smtp.mail=potswa@gmail.com; dkim=pass header.i=@gmail.com; dmarc=pass (p=NONE dis=NONE) header.from=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:8496 Archived-At: On 1/9/14 11:18 AM, Richard Smith wrote: > The useful thing about introducing a new feature is that you get to specify > how it works =) Naturally, we would specify that passing a generic template > argument to another template preserves the kind of template argument. But how can you make that work without redoing how parsers must classify type-dependent expressions? And what's the benefit, given that overloading/partial specialization already solve the problem? -- --- 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/. .