220 12120 article Path: news.gmane.org!not-for-mail From: Tony V E Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: std::order -- what do you think? Date: Wed, 30 Jul 2014 12:40:45 -0400 Lines: 97 Approved: news@gmane.org Message-ID: References: <0ba9643b-7a18-4ab6-a8f7-caec2450c061@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary=001a113474cc53f61c04ff6bd1b8 X-Trace: ger.gmane.org 1406738455 29395 80.91.229.3 (30 Jul 2014 16:40:55 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 30 Jul 2014 16:40:55 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCUZ5QWKNQII5QHETYCRUBAT65SY2@isocpp.org Wed Jul 30 18:40:49 2014 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-wg0-f72.google.com ([74.125.82.72]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1XCWvn-00081O-Sg for gclcip-std-proposals@m.gmane.org; Wed, 30 Jul 2014 18:40:47 +0200 Original-Received: by mail-wg0-f72.google.com with SMTP id b13sf985274wgh.11 for ; Wed, 30 Jul 2014 09:40:47 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:x-original-sender :x-original-authentication-results:reply-to:precedence:mailing-list :list-id:list-post:list-help:list-archive:list-subscribe :list-unsubscribe:content-type; bh=iFC9+gymto8PFpR7RQdG3GO786QjN/+t6yHstHt5fbs=; b=cRBXrElQc7asMkL0kDcRj5NPZ3quef4XhElEiddNcg4K8BDL4ZZS9y4T/G1yx1qEi+ 0Uddj2W002Hu7GEQlXkPaz7HONe/pkaZIxgVwG/DfH8tqluR9xFszAGcP5xAj3bMFZum dX/dKSm/cZ0fGDWCWkFY2/Ifbqmmf3sPRgvPdnQN0+mJYvOK8qWIfNUcXMgnPgc4POS2 ryWdJxI+Lagt2EukSh7PjbxE7ftN8d6KNZtVm7ylo45zLDfixC1GCCUUtFFtP66dtx2F 1rsGBnRn12NrK3j1vDf3YgqaLOFQuT6DJ0U0chmRWAigPE1IteR/onMs6pgYy1Vsf6Oi gJ5w== X-Gm-Message-State: ALoCoQlp6wgwPhQh9G6SJ085LGgHv9R7kWkL5aSG++LLxL2oVizq1LfaPKSIZlsjYUn0d1PCVQP6 X-Received: by 10.112.255.99 with SMTP id ap3mr566784lbd.7.1406738447458; Wed, 30 Jul 2014 09:40:47 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.152.170.136 with SMTP id am8ls111851lac.47.gmail; Wed, 30 Jul 2014 09:40:45 -0700 (PDT) X-Received: by 10.112.63.65 with SMTP id e1mr5653577lbs.81.1406738445908; Wed, 30 Jul 2014 09:40:45 -0700 (PDT) Original-Received: from mail-la0-x22e.google.com (mail-la0-x22e.google.com [2a00:1450:4010:c03::22e]) by mx.google.com with ESMTPS id y1si9412005lbw.44.2014.07.30.09.40.45 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 30 Jul 2014 09:40:45 -0700 (PDT) Received-SPF: pass (google.com: domain of tvaneerd@gmail.com designates 2a00:1450:4010:c03::22e as permitted sender) client-ip=2a00:1450:4010:c03::22e; Original-Received: by mail-la0-f46.google.com with SMTP id b8so1120108lan.33 for ; Wed, 30 Jul 2014 09:40:45 -0700 (PDT) X-Received: by 10.152.198.195 with SMTP id je3mr6134629lac.59.1406738445364; Wed, 30 Jul 2014 09:40:45 -0700 (PDT) Original-Received: by 10.113.4.162 with HTTP; Wed, 30 Jul 2014 09:40:45 -0700 (PDT) In-Reply-To: X-Original-Sender: tvaneerd@gmail.com X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of tvaneerd@gmail.com designates 2a00:1450:4010:c03::22e as permitted sender) smtp.mail=tvaneerd@gmail.com; dkim=pass header.i=@gmail.com; dmarc=pass (p=NONE dis=NONE) header.from=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:12120 Archived-At: --001a113474cc53f61c04ff6bd1b8 Content-Type: text/plain; charset=UTF-8 On Wed, Jul 30, 2014 at 12:20 PM, Ville Voutilainen < ville.voutilainen@gmail.com> wrote: > On 30 July 2014 19:15, Tony V E wrote: > > P.S. optional (and expected) should maybe still have <, as one of the > stated > > design goals is "to be as similar to T as possible". > > If we don't want optional to have <, then let's just overload > > std::less>. and not implement <, and be done with it. I'd > be OK > > And after you're done with that, remember to do equal_to> as > well. > > > Basically, we need to decide if "like T" is an attainable design goal > (and > > without overloaded operator . it isn't), and whether getting half-way > there > > is a benefit or a hindrance. > > > Funny, it seems to me that LEWG has decided that a couple of times already. > > What did it decide? benefit or hindrance? both? Seems to have decided half-way there. Yes, I agree they have decided a number of times. -- --- 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. 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On Wed, Jul 30, 2014 at 12:20 PM, Ville Voutilainen <vil= le.voutilainen@gmail.com> wrote:
On 30 July 2014 19:15, Tony = V E <tvaneerd@gmail.com> wr= ote:
> P.S. optional (and expected) should maybe still have <, as one of t= he stated
> design goals is "to be as similar to T as possible".
> If we don't want optional to have <, then let's just overlo= ad
> std::less<optional<T>>. and not implement <, and be don= e with it. =C2=A0I'd be OK

And after you're done with that, remember to do equal_to<optio= nal<T>> as well.

> Basically, we need to decide if "like T" is an attainable de= sign goal (and
> without overloaded operator . it isn't), and whether getting half-= way there
> is a benefit or a hindrance.


Funny, it seems to me that LEWG has decided that a couple of times al= ready.

<= br>
What did it decide? benefit or hindrance? both?
Seems to h= ave decided half-way there.

Yes, I agree they have decided a number of times.

--

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