220 6157 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 10:57:48 -0700 (PDT) Lines: 58 Approved: news@gmane.org Message-ID: 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_3496_31010801.1378317468821" X-Trace: ger.gmane.org 1378317466 21248 80.91.229.3 (4 Sep 2013 17:57:46 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 4 Sep 2013 17:57:46 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBDIODEPKWANBBHPJTWIQKGQEH6QR64A@isocpp.org Wed Sep 04 19:57:50 2013 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-vc0-f200.google.com ([209.85.220.200]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1VHHKw-00059i-IJ for gclcip-std-proposals@m.gmane.org; Wed, 04 Sep 2013 19:57:50 +0200 Original-Received: by mail-vc0-f200.google.com with SMTP id hf12sf666503vcb.7 for ; Wed, 04 Sep 2013 10:57:49 -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=M4DsVZiargMXpalvePPGPBhc+Z9mQtLy/K77E8IX/P0=; b=Q9fU+t+GgWSNOFOP0gWTr+SD+3U58XxyQE0ZJV3mJLrd/EjbUvVILgqIWjvxI4KvuK G7LPdFJM9gOnG7Puv1KgGNwO0iYT2TtQDUlt6+H/WEEMeOy/7W/BW+dctmgx7mI7PZCs 2dI6HFHnLymePMiQZ5+olZfTbeIV/d0iUm8HnC11PWt7Hk8kDmdJc1DDaH4v75ChGXxO 8yfwjUqZY0g0ysH+WSol9JMDu4gVBvQeYaCllkfpAbkcGfL3E5OTUdHR1DxXVYTbzC/B jMrkTF5kHAxQgBxGzA2uf2GKD8Ikfz5Oa5q3uEqHOQ1zJbA/mvlroBAt9gsWn4ztdMkk A5GA== X-Received: by 10.236.142.38 with SMTP id h26mr673041yhj.57.1378317469633; Wed, 04 Sep 2013 10:57:49 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.49.3.102 with SMTP id b6ls179140qeb.1.gmail; Wed, 04 Sep 2013 10:57:49 -0700 (PDT) X-Received: by 10.49.24.161 with SMTP id v1mr4604qef.37.1378317469126; Wed, 04 Sep 2013 10:57:49 -0700 (PDT) In-Reply-To: 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:6157 Archived-At: ------=_Part_3496_31010801.1378317468821 Content-Type: text/plain; charset=ISO-8859-1 Ville, > Perhaps we should leave optional well alone and consider something like > http://rk.hekko.pl/constrained_value/ > as a potential solution for cases where you want a type is a constrained > value rather than a nullable > proxy. > > I've been OK for leaving optional<> alone from the beginning of this thread. Tell me. Why I you interesting specifically in considering constrained values types? (Possibly in another thread) -- --- 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_3496_31010801.1378317468821 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Ville,


Perhaps we shoul= d leave optional well alone and consider something like http://rk.hekko.pl/co= nstrained_value/
as a potential solution for cases where you want a type is a con= strained value rather than a nullable
proxy.
=

I've been OK for leaving optional<= > alone from the beginning of this thread. Tell me. Why I you interestin= g specifically in considering constrained values types? (Possibly in anothe= r thread)

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