220 6153 <862d156a-2efc-45e0-9c6d-ae26610688c0@isocpp.org> article Path: news.gmane.org!not-for-mail From: the.ultimate.koala@gmail.com Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: std::degenerate<> class template : primitive/enum types with a special "undefined" value Date: Wed, 4 Sep 2013 09:16:40 -0700 (PDT) Lines: 63 Approved: news@gmane.org Message-ID: <862d156a-2efc-45e0-9c6d-ae26610688c0@isocpp.org> References: <18ab4801-260a-4228-8a7b-a71248b624e2@isocpp.org> <77a1bdf8-1e0d-4294-b528-d08ba5403c98@isocpp.org> <023111c2-c983-407d-918f-39be42aa2949@isocpp.org> <88ef15f1-6942-476e-b26c-6873ef6e6f0b@isocpp.org> <01900060-3aac-4645-a4a8-93b4e8760e42@isocpp.org> <5e63fe81-ab33-4bbb-ab4c-305f8b90140a@isocpp.org> <51a05a5a-ad56-4ffa-81d8-759953a93766@isocpp.org> <787f2f45-1fbc-4ce5-90fc-d8f0d8c2b8f4@isocpp.org> <6da8e8d3-7c26-4841-bc3f-40dd0715e92b@isocpp.org> <5226D6A4.4040707@wanadoo.fr> <90eb2850-ff75-47b6-979d-ac7400146b0b@isocpp.org> <52275A58.502@wanadoo.fr> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_419_8343460.1378311400707" X-Trace: ger.gmane.org 1378311401 12832 80.91.229.3 (4 Sep 2013 16:16:41 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 4 Sep 2013 16:16:41 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBDIODEPKWANBB2NZTWIQKGQETFOPUZY@isocpp.org Wed Sep 04 18:16:44 2013 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-vb0-f72.google.com ([209.85.212.72]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1VHFl4-0007LV-Gs for gclcip-std-proposals@m.gmane.org; Wed, 04 Sep 2013 18:16:42 +0200 Original-Received: by mail-vb0-f72.google.com with SMTP id f12sf525216vbg.3 for ; Wed, 04 Sep 2013 09:16:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; 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=e+FUXareHSygxuw5hqGG8WNuljoXjcqFuJd5r3CmdnI=; b=H1rbrgab2n+DCLrKHxtjzrDp4NNv1pm0FUUWrgzERwA2wEggoMmT+Er20k0KLmrKaf eTmpV+zkNIxaoLSWZddWFyIvvu0I2/pS0lSxnUBZG9Ot7r5UpKgQnpk5e4/bpA6difkc vFB1besdIckNdYFzQ7HCttOlLF43UmVYZULsVbhuGUXx87rqi2KKzxBMxzJGy3L1rAm3 CJ7Uz8/LsFPO3jl29AY0YszeZzIaQ+aqw8o7fTRm8+EXCWo00zAsWqGFeBixC7s2C5u5 ikYK89wfjYNUkPYlI2GURuB+r3fXjbHx1Q5agsTUdJK++QBpDs9xqPXaeQUpQ1hVjcq9 mOSA== X-Received: by 10.236.7.130 with SMTP id 2mr1293210yhp.4.1378311401511; Wed, 04 Sep 2013 09:16:41 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.49.74.198 with SMTP id w6ls174807qev.9.gmail; Wed, 04 Sep 2013 09:16:41 -0700 (PDT) X-Received: by 10.49.129.65 with SMTP id nu1mr8040qeb.41.1378311401052; Wed, 04 Sep 2013 09:16:41 -0700 (PDT) In-Reply-To: <52275A58.502@wanadoo.fr> X-Original-Sender: theultimatekoala@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:6153 Archived-At: ------=_Part_419_8343460.1378311400707 Content-Type: text/plain; charset=ISO-8859-1 Vicente, > There is nothing wrong. Just this must be done quickly as once in C++14 > it would be not so easy to change the std::optional interface. My > suggestion could be adopted just after c++14 is released. > > Vicente > This must NOT be done quickly, as once in C++14 it would not be so easy to take out, except by deprecation. If you wish to propose it to the committee, please write the proposal and go for it. I think it's not ready at all. (try feeding the template with a reference type, for instance) -- --- 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_419_8343460.1378311400707 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Vicente,
=
There is nothing wrong. Just this must be done quickly as once in C++14 it would be not so easy to change the std::optional interface. My suggestion could be adopted just after c++14 is released.

Vicente

This must NOT be done quickly, as once in C++= 14 it would not be so easy to take out, except by deprecation. If you wish = to propose it to the committee, please write the proposal and go for it. I = think it's not ready at all. (try feeding the template with a reference typ= e, for instance)

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