220 7408 article Path: news.gmane.org!not-for-mail From: "Billy O'Neal" Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: To add the method append for all sequential containers that have method push_back Date: Tue, 22 Oct 2013 13:13:40 -0700 Lines: 173 Approved: news@gmane.org Message-ID: References: <4167b82e-a3cc-44ce-9825-b52514bc1531@isocpp.org> <357325b0-cec5-4d22-ad56-9bb66f76b458@isocpp.org> <983ff074-5d8c-488a-b06c-49d53d5b7a5b@isocpp.org> <9d4555bb-fa09-4146-9f76-1d8f5cdd1fdf@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary=001a11c2ff58cb92e004e95a0bfb X-Trace: ger.gmane.org 1382472857 27963 80.91.229.3 (22 Oct 2013 20:14:17 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 22 Oct 2013 20:14:17 +0000 (UTC) To: std-proposals Original-X-From: std-proposals+bncBDKLBLVE6ADBBHNZTOJQKGQEMAMWDSY@isocpp.org Tue Oct 22 22:14:23 2013 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-ie0-f200.google.com ([209.85.223.200]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1VYiLO-0003Le-SD for gclcip-std-proposals@m.gmane.org; Tue, 22 Oct 2013 22:14:23 +0200 Original-Received: by mail-ie0-f200.google.com with SMTP id aq17sf4163887iec.3 for ; Tue, 22 Oct 2013 13:14:21 -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=0CZ71hA7wexkgIQu1Uk9wv/m8Z6+va8MBeVYxqxkf9M=; b=dRSeYpObPQ9Rl+Ha3Y+Um2hHPCOByzKcfPAsLj0DnVuPY6ePAjA6l4yjL1Y/Yqi38m UMWATOvKa6g6R6X9d7KJ2NukKh0T0BsBKZZzD3PCEmU86OAaiN1Sajob6XDrOKTJ446i ATvPhzmW6kYjbXK4ITaS4KgzUhHqKKOr99uAg/QxMa9jwEPbykVFxX0Ogr1pjpr4HZU3 S4vS5Bq/tX+FXUzwCt/vEVRG64cAKE0QFcqk3HQYafyMNQ7w26Ta1qvM+4lTwiyOCtyk eWZHLtVlKboGT1Plig0t6pSmTb0uldgSjbdjFqdd6ZYMbRIj2QgjbE64+vIU82q4jV/A ajuA== X-Received: by 10.50.114.66 with SMTP id je2mr7970613igb.5.1382472861819; Tue, 22 Oct 2013 13:14:21 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.182.29.229 with SMTP id n5ls132466obh.66.gmail; Tue, 22 Oct 2013 13:14:21 -0700 (PDT) X-Received: by 10.60.39.169 with SMTP id q9mr1507926oek.79.1382472861355; Tue, 22 Oct 2013 13:14:21 -0700 (PDT) Original-Received: from mail-oa0-x22d.google.com (mail-oa0-x22d.google.com [2607:f8b0:4003:c02::22d]) by mx.google.com with ESMTPS id ds9si15882414obc.125.2013.10.22.13.14.21 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 22 Oct 2013 13:14:21 -0700 (PDT) Received-SPF: pass (google.com: domain of billy.oneal@gmail.com designates 2607:f8b0:4003:c02::22d as permitted sender) client-ip=2607:f8b0:4003:c02::22d; Original-Received: by mail-oa0-f45.google.com with SMTP id i4so7097630oah.18 for ; Tue, 22 Oct 2013 13:14:21 -0700 (PDT) X-Received: by 10.60.51.99 with SMTP id j3mr2805103oeo.49.1382472861060; Tue, 22 Oct 2013 13:14:21 -0700 (PDT) Original-Received: by 10.182.87.37 with HTTP; Tue, 22 Oct 2013 13:13:40 -0700 (PDT) In-Reply-To: <9d4555bb-fa09-4146-9f76-1d8f5cdd1fdf@isocpp.org> 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:f8b0:4003:c02::22d 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:7408 Archived-At: --001a11c2ff58cb92e004e95a0bfb Content-Type: text/plain; charset=KOI8-R Content-Transfer-Encoding: quoted-printable > if to do so the question arises what to do with arrays You should not be able to append to arrays. An append is a length changing operation, and arrays are fixed size. >Also what to do with other containers that also have no method insert as for example std::forward_list? Use tag dispatch for forward_list to call insert_after instead. Billy O'Neal https://github.com/BillyONeal/ http://stackoverflow.com/users/82320/billy-oneal Malware Response Instructor - BleepingComputer.com On Tue, Oct 22, 2013 at 1:11 PM, Vlad from Moscow wrot= e: > As I said I do not see a great sense to make the method as a non-member > function. In my opinion it is a wrong approach because if to do so the > question arises what to do with arrays. They have no method insert. Also > what to do with other containers that also have no method insert as for > example std::forward_list? > > =D7=D4=CF=D2=CE=C9=CB, 22 =CF=CB=D4=D1=C2=D2=D1 2013 =C7., 21:38:05 UTC+4= =D0=CF=CC=D8=DA=CF=D7=C1=D4=C5=CC=D8 Evgeny Panasyuk > =CE=C1=D0=C9=D3=C1=CC: > >> >>> I do not see any great sense in this function. In fact you need to >>> write its realization for each container. So it looks like the realizat= ion >>> of function std:;swap in containers. Moreover std::basic_string has >>> already method append. So that to make the call of the function >>> interchangeable with other containers it is better to make it a class >>> member. >>> >> >> Non-member append/push_back is easily implementable in terms of end() >> (which is part of Container concept requirnment since 1998) and insert(.= ...) >> (which is part of Sequence concept requirenment since 1998). >> Once such function will be implemented as non-member it would work with >> any conformant sequence automaticly. That is not only about STL containe= rs, >> but also about containers which users developed themself since 1998. >> Just look at http://www.boost.org/doc/libs/**1_54_0/libs/range/doc/html/= * >> *range/reference/algorithms/**new/push_back.html >> >> -- > > --- > 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/. > --=20 ---=20 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 e= mail 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-proposa= ls/. --001a11c2ff58cb92e004e95a0bfb Content-Type: text/html; charset=KOI8-R Content-Transfer-Encoding: quoted-printable
> if to do so the question arises what to do with = arrays
You should not be able to append to arrays. An append is a= length changing operation, and arrays are fixed size.

>Also what to do with other containers that also have no method ins= ert as for example std::forward_list?
Use tag dispatch for forwar= d_list to call insert_after instead.

Billy O'Neal
Malware Response Instructor - BleepingComputer.com


On Tue, Oct 22, 2013 at 1:11 PM, Vlad fr= om Moscow <vlad.moscow@mail.ru> wrote:
As I said I do not see a great sense to make the meth= od as a non-member function. In my opinion it is a wrong approach because i= f to do so the question arises what to do with arrays. They have no method = insert. Also what to do with other containers that also have no method inse= rt as for example std::forward_list?

=D7=D4=CF=D2=CE=C9=CB, 22 =CF=CB=D4=D1=C2=D2=D1 2013=9A=C7., 21:38= :05 UTC+4 =D0=CF=CC=D8=DA=CF=D7=C1=D4=C5=CC=D8 Evgeny Panasyuk =CE=C1=D0=C9= =D3=C1=CC:
=9A
I do = not see any great sense in this function. In fact you need to write=9Aits r= ealization for each container. So it looks like the realization of function= std:;swap in containers. Moreover std::basic_string has already=9Amethod a= ppend. So that to make the call of the function interchangeable with other = containers it is better to make it a class member.
=9A
Non-member append/push_back is easily implem= entable in terms of end() (which is part of Container concept requirnment s= ince 1998) and insert(...) (which is part of Sequence concept requirenment = since 1998).
Once such function will be implemented as non-member it would work with any= conformant sequence automaticly. That is not only about STL containers, bu= t also about containers which users developed themself since 1998.
Just look at http= ://www.boost.org/doc/libs/1_54_0/libs/range/doc/html/range/re= ference/algorithms/new/push_back.html

--
=9A
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You received this message because you are subscribed to the Google Groups &= quot;ISO C++ Standard - Future Proposals" group.
To unsubscribe from this group and stop receiving emails from it, send an e= mail 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/gro= up/std-proposals/.

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