220 19816 article Path: news.gmane.org!not-for-mail From: Nevin Liber Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: implicit conversion of non-const member funcs to const if object is const Date: Wed, 12 Aug 2015 10:25:06 -0500 Lines: 74 Approved: news@gmane.org Message-ID: References: Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary=001a11376c9e2ce373051d1ed5f9 X-Trace: ger.gmane.org 1439393155 20022 80.91.229.3 (12 Aug 2015 15:25:55 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 12 Aug 2015 15:25:55 +0000 (UTC) To: "std-proposals@isocpp.org" Original-X-From: std-proposals+bncBCE35H5S6IDBB6WKVWXAKGQEAWQ5VKA@isocpp.org Wed Aug 12 17:25:50 2015 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-oi0-f69.google.com ([209.85.218.69]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1ZPXuX-0004AI-3M for gclcip-std-proposals@m.gmane.org; Wed, 12 Aug 2015 17:25:49 +0200 Original-Received: by oiey141 with SMTP id y141sf29546626oie.1 for ; Wed, 12 Aug 2015 08:25:48 -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:sender:in-reply-to:references:from :date:message-id:subject:to:content-type:x-original-sender :x-original-authentication-results:reply-to:precedence:mailing-list :list-id:x-spam-checked-in-group:list-post:list-help:list-archive :list-subscribe:list-unsubscribe; bh=CAqQ5lTCXKcNATGufQbTNOXb8uZoUnIeCC60MoVKzzI=; b=UbgxrFvylt8qxuTpPuJ6t8W0FRabtpTWF1P+6q1FMbOuepk2mSe3MqxHvVFS0SInI6 RMUQWv5VwfygCzLcO0U1MUn0tqgDjMLR60D38JyoU4LY9pHPqBdJouZ+Y+aA/iN/5Hj5 37snRyYVTC6Gakj8eFcTQMIpL4I69i3PkpXkHFWOROhQpaJAF2NJUb3GYsi4Kf92tAp1 pkB/AdtnknkwTPb+kDdcd2ymYJIdQPnoihixMDrHBEfOHzA0+DiEsaiSzm3qnpWwQ+43 JxSkBK5TOt9AZNO6YkjRYG+Cdh8yIngBlLNXPuFUEWu15IQUKrnVUZ2GFRsTFm1QDC1o mXEQ== X-Gm-Message-State: ALoCoQlN0MNvAr/azUvaqY70S9HdOYxsABVJRwF9G9F4Q1Bn6wQd5nz3MGcVhYpDuDQ74/svNWM+ X-Received: by 10.182.254.9 with SMTP id ae9mr14016234obd.20.1439393148167; Wed, 12 Aug 2015 08:25:48 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.107.25.194 with SMTP id 185ls252486ioz.90.gmail; Wed, 12 Aug 2015 08:25:46 -0700 (PDT) X-Received: by 10.50.102.98 with SMTP id fn2mr25417987igb.55.1439393146465; Wed, 12 Aug 2015 08:25:46 -0700 (PDT) Original-Received: from mail-io0-x231.google.com (mail-io0-x231.google.com. [2607:f8b0:4001:c06::231]) by mx.google.com with ESMTPS id f186si4077484ioe.187.2015.08.12.08.25.46 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 12 Aug 2015 08:25:46 -0700 (PDT) Received-SPF: pass (google.com: domain of nliber@gmail.com designates 2607:f8b0:4001:c06::231 as permitted sender) client-ip=2607:f8b0:4001:c06::231; Original-Received: by iods203 with SMTP id s203so23329146iod.0 for ; Wed, 12 Aug 2015 08:25:46 -0700 (PDT) X-Received: by 10.107.47.197 with SMTP id v66mr33666623iov.30.1439393146263; Wed, 12 Aug 2015 08:25:46 -0700 (PDT) Original-Sender: nliber@gmail.com Original-Received: by 10.107.12.197 with HTTP; Wed, 12 Aug 2015 08:25:06 -0700 (PDT) In-Reply-To: X-Original-Sender: nevin@eviloverlord.com X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of nliber@gmail.com designates 2607:f8b0:4001:c06::231 as permitted sender) smtp.mailfrom=nliber@gmail.com; dkim=pass header.i=@gmail.com Precedence: list Mailing-list: list std-proposals@isocpp.org; contact std-proposals+owners@isocpp.org List-ID: X-Spam-Checked-In-Group: std-proposals@isocpp.org 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:19816 Archived-At: --001a11376c9e2ce373051d1ed5f9 Content-Type: text/plain; charset=UTF-8 On 12 August 2015 at 09:21, Matthew Woehlke wrote: > Er... no? Just make the member const in the first place. If it can be, > it should be. If it can't be, it can't be, period. I find it extremely > hard to imagine that this minor convenience is worth the complexities > that would be involved to implement it, just so that you can be lazy > about writing your code properly in the first place. > And the one place I'd want it might be for getters such as: T& get() { return data_; } T const& get() const { return data_; } it won't do the correct thing, as one has to change the return type. -- Nevin ":-)" Liber (847) 691-1404 -- --- 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 12 August 2015 at 09:21, Matthew Woehlke <mwoehlke.floss@gmail= ..com> wrote:
Er... no? Just make the member co= nst in the first place. If it can be,
it should be. If it can't be, it can't be, period. I find it extrem= ely
hard to imagine that this minor convenience is worth the complexities
that would be involved to implement it, just so that you can be lazy
about writing your code properly in the first place.
=

And the one place I'd want it might be for getters such as:

T& = get() { return data_; }
T const& get() = const { return data_; }

it won't do the corre= ct thing, as one has to change the return type.
--
=C2=A0Nevin ":-)" Liber=C2=A0 <mailto:nevin@eviloverlord.com= >=C2=A0 (847) 691-1404

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