220 6863 article Path: news.gmane.org!not-for-mail From: "Billy O'Neal" Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Proposal: Class Frames to inject prefabricated features into classes Date: Tue, 1 Oct 2013 14:52:44 -0700 Lines: 136 Approved: news@gmane.org Message-ID: References: <27c90f45-8ae6-44c1-8755-2b4cece26bcb@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary=90e6ba614f0e5dffdd04e7b4fbee X-Trace: ger.gmane.org 1380664402 7151 80.91.229.3 (1 Oct 2013 21:53:22 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 1 Oct 2013 21:53:22 +0000 (UTC) To: std-proposals Original-X-From: std-proposals+bncBDKLBLVE6ADBBVMIVWJAKGQEIUUY6MY@isocpp.org Tue Oct 01 23:53:28 2013 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-oa0-f69.google.com ([209.85.219.69]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1VR7sk-0003Rc-Ib for gclcip-std-proposals@m.gmane.org; Tue, 01 Oct 2013 23:53:26 +0200 Original-Received: by mail-oa0-f69.google.com with SMTP id n10sf24428761oag.8 for ; Tue, 01 Oct 2013 14:53:25 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=mime-version:in-reply-to:references:from:date:message-id:subject: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=6WrBdoaO9ldLzt7Ow499VmMgTdVlrYjd6+3Gmk8V0G8=; b=NdJeio9PKRiHrGZvrOcp8dskJgvol7aYO3UdPOfC6wDz2iZ6R+1tk5YlAdEZr+Eg1s xqPQ3DYFV+IP6736uCWgBFxJShN46Qvjhm8PdZavgfqUu86UNL6fYNN0Stju7lUmTHxi 4WUqlpRu+I2wM8u9EiFC9Vrvao79gljtcHocZ79RT6xAZlj2PwKO4hR0GV3bp0qiA8p9 S3PpGQGL34GB7MeP0r5aiYv7OxOLZs7/rdHQVr6xP4GliTd7BGJCr+frI9Br5haMhcJx orCraSe9/3NbB78Cj2w3ALxZZt+UoLFqdOhkFRI2BLJMk0fFkFhHMdx83OvIticLpIDh srPg== X-Received: by 10.50.79.135 with SMTP id j7mr17405746igx.1.1380664405558; Tue, 01 Oct 2013 14:53:25 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.50.49.100 with SMTP id t4ls2897117ign.38.canary; Tue, 01 Oct 2013 14:53:24 -0700 (PDT) X-Received: by 10.60.70.134 with SMTP id m6mr29040098oeu.14.1380664404772; Tue, 01 Oct 2013 14:53:24 -0700 (PDT) Original-Received: from mail-ie0-x234.google.com (mail-ie0-x234.google.com [2607:f8b0:4001:c03::234]) by mx.google.com with ESMTPS id sp4si6445988oeb.59.1969.12.31.16.00.00 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 01 Oct 2013 14:53:24 -0700 (PDT) Received-SPF: pass (google.com: domain of billy.oneal@gmail.com designates 2607:f8b0:4001:c03::234 as permitted sender) client-ip=2607:f8b0:4001:c03::234; Original-Received: by mail-ie0-f180.google.com with SMTP id u16so15108021iet.39 for ; Tue, 01 Oct 2013 14:53:24 -0700 (PDT) X-Received: by 10.42.92.84 with SMTP id s20mr39778icm.63.1380664404203; Tue, 01 Oct 2013 14:53:24 -0700 (PDT) Original-Received: by 10.43.166.67 with HTTP; Tue, 1 Oct 2013 14:52:44 -0700 (PDT) In-Reply-To: X-Original-Sender: billy.oneal@gmail.com X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of billy.oneal@gmail.com designates 2607:f8b0:4001:c03::234 as permitted sender) smtp.mail=billy.oneal@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:6863 Archived-At: --90e6ba614f0e5dffdd04e7b4fbee Content-Type: text/plain; charset=ISO-8859-1 Ah, whoops :) That's right. Billy O'Neal https://github.com/BillyONeal/ http://stackoverflow.com/users/82320/billy-oneal Malware Response Instructor - BleepingComputer.com On Tue, Oct 1, 2013 at 2:25 PM, Nevin Liber wrote: > On 1 October 2013 15:53, Billy O'Neal wrote: > >> How is this different than what you can already do with the existing: >> >> template >> class MoveInjection >> { >> T& operator=(T&&) { /*...*/ } >> } >> >> class Client : public MoveInjection >> { >> >> } >> > > You cannot inject assignment operators / constructors via CRTP. The way I > think about it is that the compiler generates new assignment operators for > the derived classes which hide any declared in the base class. > > That being said, I don't think that is worth a whole language feature. > > -- > > --- > 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/. > -- --- 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/. --90e6ba614f0e5dffdd04e7b4fbee Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Ah, whoops :) That's right.

Mal= ware Response Instructor - BleepingComputer.com


On Tue, Oct 1, 2013 at 2:25 PM, Nevin Li= ber <nevin@eviloverlord.com> wrote:
On 1 October 2013 15:53, Billy O'Nea= l <billy.oneal@gmail.com> wrote:
How is this different than what you = can already do with the existing:
=A0
template <typename T>
class MoveInjection
{
=A0=A0=A0 T&=A0operator= =3D(T&&) { /*...*/ }
}
=A0
class Client : public MoveInjection<Clien= t>
{
=A0
}
You cannot inject assignment operators / constructors vi= a CRTP. =A0The way I think about it is that the compiler generates new assi= gnment operators for the derived classes which hide any declared in the bas= e class.

That being said, I don't think that is worth a whol= e language feature.

--
=A0
---
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--
 
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