220 7448 article Path: news.gmane.org!not-for-mail From: Vlad from Moscow 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: Wed, 23 Oct 2013 09:20:43 -0700 (PDT) Lines: 154 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> <369298d9-3f8b-405a-8bfe-ae209372a26f@isocpp.org> <5266DEEC.7090805@gmail.com> <7c9a2637-65d8-4d54-bd3c-b46c0c22b34f@isocpp.org> <70a718dd-eca7-4845-8e9c-0313581ed453@isocpp.org> <6b9f62b2-21b1-4c62-a815-217d77a59a23@isocpp.org> <0e98fae6-2dc5-4e50-8659-5334012c4dd4@isocpp.org> <0d945506-2a09-4645-a68e-ada2b9898aa9@isocpp.org> <69dd52d3-c35e-4391-b998-d1a35c4599d6@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_441_20704577.1382545243045" X-Trace: ger.gmane.org 1382545244 20906 80.91.229.3 (23 Oct 2013 16:20:44 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 23 Oct 2013 16:20:44 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCXLLRHD7IDRBW7OT6JQKGQE6GNTE2Y@isocpp.org Wed Oct 23 18:20:49 2013 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 1VZ1As-0004hD-Pt for gclcip-std-proposals@m.gmane.org; Wed, 23 Oct 2013 18:20:47 +0200 Original-Received: by mail-pa0-f69.google.com with SMTP id kq14sf2203377pab.0 for ; Wed, 23 Oct 2013 09:20:45 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=date:from:to:message-id:in-reply-to:references:subject:mime-version :x-original-sender:reply-to:precedence:mailing-list:list-id :list-post:list-help:list-archive:list-subscribe:list-unsubscribe :content-type; bh=pBIs6i7RUfYlV4DB1NDCpMh46Z9U7ZNbXyYYMDRNxwE=; b=jXHa1pT0qHSQFZf8D0sW4p9KNF7a4MhvSIyHdBV7HfVippDi9rU/6QxewfxqZv4jhp 3RnfXoNhJsbJkw83vDA0xbgSguKM2ZG/UBgExHurGMpN/ed1MWqQTtNEZVmgm2VAIOL4 QwZ9gGPOpkmVTjBFfE2YF0VQH5yOtv4ICj0HvhxB2Z76kPN+3YYJeS4wwMmXMCxAXvkt nYqJ3npgPVFgI8AvM1FEp00C/SSdMvH+OLJWLCijjYcanUcMeDKZw4KW+WKUzaogK77w lh6tkHXEoxF0Or/nemUS51CdiJ51ZmkmfR5sypWClzjDhVk2LHsRpq3v6wh8CahbvJWk +zMA== X-Received: by 10.68.137.163 with SMTP id qj3mr1002137pbb.4.1382545245341; Wed, 23 Oct 2013 09:20:45 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.49.39.163 with SMTP id q3ls520664qek.31.gmail; Wed, 23 Oct 2013 09:20:43 -0700 (PDT) X-Received: by 10.49.51.197 with SMTP id m5mr76216qeo.5.1382545243578; Wed, 23 Oct 2013 09:20:43 -0700 (PDT) In-Reply-To: X-Original-Sender: vlad.moscow@mail.ru 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:7448 Archived-At: ------=_Part_441_20704577.1382545243045 Content-Type: text/plain; charset=KOI8-R Content-Transfer-Encoding: quoted-printable append shows more clear the intention of the programmer. Consider code =20 v.insert( it, std::begin( a ), std:;end( a ) ); =20 You can say nothing whether the array is indeed inserted or appended.=20 =20 Word insert only confuses readers because literally insert and append have= =20 different meaning. =20 So in my opinion all sequantial containers with method push_back should=20 have the following set of methods: =20 assign insert append erase =20 and all these methods shall have the following parameters =20 size_type n, const T &value; InputIterator first, InputIterator last initializer_list =20 in this case they will be interchangeable with clear semantic of their=20 methods. ..=20 =20 =D3=D2=C5=C4=C1, 23 =CF=CB=D4=D1=C2=D2=D1 2013 =C7., 19:04:07 UTC+4 =D0=CF= =CC=D8=DA=CF=D7=C1=D4=C5=CC=D8 Zhihao Yuan =CE=C1=D0=C9=D3=C1=CC: > On Wed, Oct 23, 2013 at 8:02 AM, Ville Voutilainen=20 > > wrote:=20 > > I have found that novices often expect an append() to be available, but= =20 > cope=20 > > quite quickly=20 > > when told that it's named push_back().=20 > > Interestingly in Python `push_back` is named `append`, and=20 > "bulk insertion at the end" is named `extend` :)=20 > > > The iterator version is much rarer,=20 > > as is chaining=20 > > or otherwise combining multiple appends.=20 > > If it takes a Range, like Python's `extend`, which takes an=20 > iterable object, that would be more useful, I think :)=20 > > I always uses string .append() line by line; chained side-=20 > effects are unnecessary and confusing to me.=20 > > > Meh, indeed. I'll stay well out of=20 > > the room if=20 > > LEWG wishes to discuss this. :)=20 > > lol=20 > > --=20 > Zhihao Yuan, ID lichray=20 > The best way to predict the future is to invent it.=20 > ___________________________________________________=20 > 4BSD -- http://4bsd.biz/=20 > --=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/. ------=_Part_441_20704577.1382545243045 Content-Type: text/html; charset=KOI8-R Content-Transfer-Encoding: quoted-printable
append shows more clear the intention of the programm= er. Consider code
 
v.insert( it, std::begin( a ),= std:;end( a ) );
 
You can say nothing whether th= e array is indeed inserted or appended.
 
Word in= sert only confuses readers because literally insert and append have differe= nt meaning.
 
So in my opinion all sequantial cont= ainers with method push_back should have the following set of methods:
 
assign
insert
append
e= rase
 
and all these methods shall have the follow= ing parameters
 
size_type n, const T &value;<= /div>
InputIterator first, InputIterator last
initializer_lis= t<value_type>
 
in this case they will be in= terchangeable with clear semantic of their methods.
.
=  

=D3=D2=C5=C4=C1, 23 =CF=CB=D4=D1=C2=D2=D1 2013 = =C7., 19:04:07 UTC+4 =D0=CF=CC=D8=DA=CF=D7=C1=D4=C5=CC=D8 Zhihao Yuan =CE= =C1=D0=C9=D3=C1=CC:
On Wed, Oct 23, 2013 = at 8:02 AM, Ville Voutilainen
<ville.vo...@gmail.com> wrote:
> I have found that novices often expect an append() to be available= , but cope
> quite quickly
> when told that it's named push_back().

Interestingly in Python `push_back` is named `append`, and
"bulk insertion at the end" is named `extend` :)

> The iterator version is much rarer,
> as is chaining
> or otherwise combining multiple appends.

If it takes a Range, like Python's `extend`, which takes an
iterable object, that would be more useful, I think :)

I always uses string .append() line by line; chained side-
effects are unnecessary and confusing to me.

> Meh, indeed. I'll stay well out of
> the room if
> LEWG wishes to discuss this. :)

lol

--=20
Zhihao Yuan, ID lichray
The best way to predict the future is to invent it.
___________________________________________________
4BSD -- http://4bsd.biz/=

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