220 5041 article Path: news.gmane.org!not-for-mail From: Mikhail Semenov Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Require that this should be always caputred by copy. Date: Sat, 15 Jun 2013 05:28:55 -0700 (PDT) Lines: 64 Approved: news@gmane.org Message-ID: References: <51bf2631-aed7-4433-b16d-15ee15e87f29@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_1106_8050577.1371299335036" X-Trace: ger.gmane.org 1371299337 31294 80.91.229.3 (15 Jun 2013 12:28:57 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 15 Jun 2013 12:28:57 +0000 (UTC) Cc: tomaszkam@gmail.com To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBDC55PNFRYGRBCF46GGQKGQEDCHW32I@isocpp.org Sat Jun 15 14:28:58 2013 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-vc0-f198.google.com ([209.85.220.198]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1UnpbF-00064R-Cd for gclcip-std-proposals@m.gmane.org; Sat, 15 Jun 2013 14:28:57 +0200 Original-Received: by mail-vc0-f198.google.com with SMTP id hf12sf1792680vcb.9 for ; Sat, 15 Jun 2013 05:28:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-beenthere:date:from:to:cc:message-id:in-reply-to:references :subject:mime-version:x-original-sender:reply-to:precedence :mailing-list:list-id:x-google-group-id:list-post:list-help :list-archive:list-subscribe:list-unsubscribe:content-type; bh=QVY5yP0sffGtuvrrGR9kbb1M/sGNs4moVmvesg413JA=; b=nZ9a7psqBNIPZ9MxQLcjiGDqZHaVN73L7oqUCErQYTHqiiHqZ5LJVgqnLG5avgss1k S9yu9ZPez0Nf5SlYwM82bxqn1VtDLvLz+dTA4Gu8XTV2BFCigeX5QTPZnGkI+aUF39t0 2jk/JkFJvQwgcbojxPeBvgoxwslMdmw4PwsKtZ5tSkU0EWQRccRSShKjMhZGTVEs99n7 pXlJCP26SPsMGSu/MIhZFbebWmYWvqYStMoCxUuC2s6iRX1SUGIdNAm4bGQ1gS2f5jj6 F23HqTehRqcSODje8v4pKala599eC1bt0PbX0voLrkwmDm4DpIdtsfXYuAhjv0lAVnau 96SA== X-Received: by 10.224.42.141 with SMTP id s13mr3251574qae.3.1371299336490; Sat, 15 Jun 2013 05:28:56 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.49.3.105 with SMTP id b9ls567883qeb.34.gmail; Sat, 15 Jun 2013 05:28:55 -0700 (PDT) X-Received: by 10.49.36.199 with SMTP id s7mr187740qej.17.1371299335390; Sat, 15 Jun 2013 05:28:55 -0700 (PDT) In-Reply-To: <51bf2631-aed7-4433-b16d-15ee15e87f29@isocpp.org> X-Original-Sender: mikhailsemenov1957@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:5041 Archived-At: ------=_Part_1106_8050577.1371299335036 Content-Type: text/plain; charset=ISO-8859-1 The point is that *this *is a keyword not an identifier. In section 2.1.2, *this* is listed among the keywords. In section 5.1.2, when the capture is defined, it allows identifies, &identifies and *this*. That's why *&this* is not allowed. Here are the sections of the standard: *2.12 Keywords.* *5.1.2* Lambda Expressions *capture: identifier & identifier this* -- --- 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_1106_8050577.1371299335036 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
The point is that this is a keyword not an i= dentifier.
In section 2.1.2, this is l= isted among the keywords. In section 5.1.2, when the capture is defined, it= allows identifies, &identifies and this.
That's why &this is not allowed.
&nbs= p;
Here are the sections of the standard:
 
<= div>2.12 Keywords.

5.1.2 La= mbda Expressions
capture:
     ide= ntifier
    & identifier
    this
 

 

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