220 4724 <51A6676D.8080809@wanadoo.fr> article Path: news.gmane.org!not-for-mail From: "Vicente J. Botet Escriba" Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Remove vector? Date: Wed, 29 May 2013 22:39:09 +0200 Lines: 145 Approved: news@gmane.org Message-ID: <51A6676D.8080809@wanadoo.fr> References:

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[80.12.242.128]) by mx.google.com with ESMTP id s48si14306511eel.96.2013.05.29.13.39.12 for ; Wed, 29 May 2013 13:39:12 -0700 (PDT) Received-SPF: neutral (google.com: 80.12.242.128 is neither permitted nor denied by best guess record for domain of vicente.botet@wanadoo.fr) client-ip=80.12.242.128; Original-Received: from pc4.home ([2.11.193.225]) by mwinf5d29 with ME id hwf91l00E4sEqES03wfAY1; Wed, 29 May 2013 22:39:12 +0200 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:17.0) Gecko/20130509 Thunderbird/17.0.6 In-Reply-To: X-Original-Sender: vicente.botet@wanadoo.fr X-Original-Authentication-Results: mx.google.com; spf=neutral (google.com: 80.12.242.128 is neither permitted nor denied by best guess record for domain of vicente.botet@wanadoo.fr) smtp.mail=vicente.botet@wanadoo.fr 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:4724 Archived-At: This is a multi-part message in MIME format. --------------040305050602000905010207 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable Le 29/05/13 19:44, Nicol Bolas a =E9crit : > > > On Wednesday, May 29, 2013 10:20:15 AM UTC-7, Vicente J. Botet Escriba=20 > wrote: > > Le 28/05/13 22:12, Howard Hinnant a =E9crit : >> On May 28, 2013, at 4:00 PM, Nicol Bolas wrote: >> >>> Personally, I agree with Howard; we should add a class that has all= of this functionality (presumably with some degree of required sizing) tha= t would be a drop-in replacement for those who need the sizing features of = vector. But the question remains: even with a drop-in replacement, ho= w much code will be broken because of this? >> Model this after the auto_ptr -> unique_ptr transition: >> >> Step 1: Introduce bit_vector (or whatever) and deprecate the vector= specialization. /Somehow/ motivate people to migrate. > I think that we will need also to add a std::*new_*vector that > behaves like std::vector but doesn't have the bool > specialization and *deprecate* std::vector :-> > > > So your solution to this significant-yet-relatively-minor-problem...=20 > is to rip out the entire class? Yes, the suggestion was not only heretical but unrealistic. vector is=20 one of the most used containers. > > I'm going to go with "no" on that. > > I understand. Not deprecating vector at all could surely help. Vicente --=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/?hl=3Den. --------------040305050602000905010207 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable

Le 29/05/13 19:44, Nicol Bolas a écrit :

On Wednesday, May 29, 2013 10:20:15 AM UTC-7, Vicente J. Botet Escriba wrote:
Le 28/05/13 22:12, Howard Hinnant a écrit :
On May 28, 2013, at 4:00 PM, Nicol Bolas <jmck...@gmail.com> wrote:
Personally, I agree with Howard; we should add a class t=
hat has all of this functionality (presumably with some degree of required =
sizing) that would be a drop-in replacement for those who need the sizing f=
eatures of vector<bool>. But the question remains: even with a drop-i=
n replacement, how much code will be broken because of this?
Model this after the auto_ptr -> unique_ptr transition:

Step 1:  Introduce bit_vector (or whatever) and deprecate the vector<boo=
l> specialization.  /Somehow/ motivate people to migrate.
I think that we will need also to add a std::new_vector<= ;T> that behaves like std::vector<T> but doesn't have the bool specialization and deprecate std::vector :->
So your solution to this significant-yet-relatively-minor-problem... is to rip out the entire class?

Yes, the suggestion was not only heretical but unrealistic. vector<T> is one of the most used containers.

I'm going to go with "no" on that.

I understand. Not deprecating vector<T> at all could surely help.

Vicente

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