220 4434 article Path: news.gmane.org!not-for-mail From: =?UTF-8?Q?Andrzej_Krzemie=C5=84ski?= Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Fixing Standard Library relational operators (was: Re: optional Rev.4 (N3672): What was the rationale to remove !=, >=, ...) Date: Wed, 15 May 2013 07:56:19 -0700 (PDT) Lines: 74 Approved: news@gmane.org Message-ID: References: <5f236e41-0f5f-4288-a80f-9eadb5168c38@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_372_28765666.1368629779642" X-Trace: ger.gmane.org 1368629926 11021 80.91.229.3 (15 May 2013 14:58:46 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 15 May 2013 14:58:46 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBDT2DGOJ34DBBFOEZ2GAKGQEB2CAEJQ@isocpp.org Wed May 15 16:58:46 2013 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-ia0-f200.google.com ([209.85.210.200]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1UcdAA-00079C-Ad for gclcip-std-proposals@m.gmane.org; Wed, 15 May 2013 16:58:42 +0200 Original-Received: by mail-ia0-f200.google.com with SMTP id x30sf4861084iaa.7 for ; Wed, 15 May 2013 07:58:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:x-beenthere:x-received:date:from:to:message-id :in-reply-to:references:subject:mime-version:x-original-sender :reply-to:precedence:mailing-list:list-id:x-google-group-id :list-post:list-help:list-archive:list-subscribe:list-unsubscribe :content-type; bh=ztt3CvjbcSLUThoygYSRsQLTZh2wXBw+Z0K2PnzKq8E=; b=n6/eWCj7IgpEbJURxZGHDVWCDJMqHZzCStIRqo8uJJeHXF+UCG+kgUPR+fAuckermC 5JkBFwexPes9DAaNe0xffyTfEAyqaJwKM7uepNMFsYJ2gdkknEm4qAG5ZcBqlzdpCW2I Nt8L0OSqStFl4jfvrypSrsNCv/xL6c4X6x58+iynkV8qgvUUcrYCysmR5w9jh3oFc4VD ud1rxMe09fMmaPkPiiVI+UYzBdoz5CD01UoFVPDgD92QHc6tp+M7tqUBRC2if59si10r 3UuB9CbPlXosDIM+f+vO6F9XcdTyp5ZZC6y3TQYXH2XteviPIkIEOmMyzNEgcZ8AghUh oxsA== X-Received: by 10.42.129.208 with SMTP id r16mr26569702ics.12.1368629781911; Wed, 15 May 2013 07:56:21 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.50.92.98 with SMTP id cl2ls3851417igb.32.canary; Wed, 15 May 2013 07:56:20 -0700 (PDT) X-Received: by 10.50.41.67 with SMTP id d3mr1238460igl.4.1368629780901; Wed, 15 May 2013 07:56:20 -0700 (PDT) In-Reply-To: X-Original-Sender: akrzemi1@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:4434 Archived-At: ------=_Part_372_28765666.1368629779642 Content-Type: text/plain; charset=ISO-8859-2 Content-Transfer-Encoding: quoted-printable W dniu sobota, 4 maja 2013 16:46:19 UTC+2 u=BFytkownik Ville Voutilainen=20 napisa=B3: > > > Indeed. And failing to achieve consensus means we'll get the current=20 > lovely situation, where > we can't even do opt1 !=3D opt2 because people are so concerned about dou= ble=20 > NaNs, apparently.=20 > Not for optional, not for optional, not for the gazillion=20 > types for which it would be useful, > because of the holy NaN. Pardon me for the sardonic overtone, but the=20 > current situation has been > designed by people who have completely lost their marbles. > More: you cannot even write: if (op !=3D nullopt)=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/?hl=3Den. ------=_Part_372_28765666.1368629779642 Content-Type: text/html; charset=ISO-8859-2 Content-Transfer-Encoding: quoted-printable

W dniu sobota, 4 maja 2013 16:46:19 UTC+2 u=BFytkownik Ville Voutil= ainen napisa=B3:

Indeed. And failing to achieve = consensus means we'll get the current lovely situation, where
we can't e= ven do opt1 !=3D opt2 because people are so concerned about double NaNs, ap= parently.
Not for optional<int>, not for optional<string>, no= t for the gazillion types for which it would be useful,
because of the h= oly NaN. Pardon me for the sardonic overtone, but the current situation has= been
designed by people who have completely lost their marbles.

More: you cannot even write: if (op !=3D nu= llopt)

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