220 17100 article Path: news.gmane.org!not-for-mail From: Nevin Liber Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: virtual constexpr fields Date: Wed, 18 Mar 2015 20:49:28 -0500 Lines: 67 Approved: news@gmane.org Message-ID: References: <532355906.19321.1426710347371.JavaMail.yahoo@mail.yahoo.com> <349e79f9-9f3d-4318-b328-c162be011f79@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary=001a113497667d08cf05119a6b0f X-Trace: ger.gmane.org 1426729815 19304 80.91.229.3 (19 Mar 2015 01:50:15 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 19 Mar 2015 01:50:15 +0000 (UTC) To: "std-proposals@isocpp.org" Original-X-From: std-proposals+bncBCE35H5S6IDBBUWWVCUAKGQEAH6YCYY@isocpp.org Thu Mar 19 02:50:13 2015 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-wi0-f198.google.com ([209.85.212.198]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1YYPbA-0004Ij-Dv for gclcip-std-proposals@m.gmane.org; Thu, 19 Mar 2015 02:50:12 +0100 Original-Received: by widex7 with SMTP id ex7sf10517347wid.2 for ; Wed, 18 Mar 2015 18:50:11 -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:list-post:list-help:list-archive:list-subscribe :list-unsubscribe; bh=ty2UMnXOcu+q+Oi39YA2V7Ep2fHVwTQSSrL5tvmtriQ=; b=iHDW7cORFfMChVAWU2+nyVdLhCIUToY1ruWBzIVHFl5Zmog8CgnXOa2YhBV6VJKv07 2iIq674/3rb0L8dqvAj3rwecVpyhO8NHj8TW5CSrsfZUCm06bOOWZWrpqPoU5qX8GNZ6 uFrou83GuiX72ufopwLRX4AWmym8FG/qG4X786ONAyMmjPMN4R03sJy6Xm75hGrtNYge 9KNqTHcL2Go0Q7Ze4BlNsElwnnulXF3mmhPHSK9Fcc3Eb6oLwnR3NXgs3YJSdwctqc1Q M9lGVShuvS/g0e3bOvY7GSck20jsPwCESTfqwPqfcPX5NHNHeHR5E61GaVDOXR/iPQEj 09WQ== X-Gm-Message-State: ALoCoQmj7Gtk6YQuIHJD76DEcL0fFkLzGPy5p5RBxBczP0YAm9ouOl7BSMuXeM8Ev6y3906iCkTT X-Received: by 10.152.4.229 with SMTP id n5mr11586163lan.1.1426729811616; Wed, 18 Mar 2015 18:50:11 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.152.20.98 with SMTP id m2ls238250lae.5.gmail; Wed, 18 Mar 2015 18:50:09 -0700 (PDT) X-Received: by 10.112.73.65 with SMTP id j1mr65976660lbv.87.1426729809913; Wed, 18 Mar 2015 18:50:09 -0700 (PDT) Original-Received: from mail-lb0-x233.google.com (mail-lb0-x233.google.com. [2a00:1450:4010:c04::233]) by mx.google.com with ESMTPS id pk6si14115136lbc.163.2015.03.18.18.50.09 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 18 Mar 2015 18:50:09 -0700 (PDT) Received-SPF: pass (google.com: domain of nliber@gmail.com designates 2a00:1450:4010:c04::233 as permitted sender) client-ip=2a00:1450:4010:c04::233; Original-Received: by lbnq5 with SMTP id q5so14583930lbn.0 for ; Wed, 18 Mar 2015 18:50:09 -0700 (PDT) X-Received: by 10.112.93.167 with SMTP id cv7mr34909704lbb.77.1426729809543; Wed, 18 Mar 2015 18:50:09 -0700 (PDT) Original-Sender: nliber@gmail.com Original-Received: by 10.114.184.175 with HTTP; Wed, 18 Mar 2015 18:49:28 -0700 (PDT) In-Reply-To: <349e79f9-9f3d-4318-b328-c162be011f79@isocpp.org> X-Original-Sender: nevin@eviloverlord.com X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of nliber@gmail.com designates 2a00:1450:4010:c04::233 as permitted sender) smtp.mail=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-Google-Group-Id: 399137483710 List-Post: , List-Help: , List-Archive: List-Subscribe: , List-Unsubscribe: , Xref: news.gmane.org gmane.comp.lang.c++.isocpp.proposals:17100 Archived-At: --001a113497667d08cf05119a6b0f Content-Type: text/plain; charset=UTF-8 On 18 March 2015 at 20:30, Nicol Bolas wrote: > This is a whole lot of complexity just to do cheaper RTTI. > While I see a vocabulary problem (given that this is something new, it isn't necessarily unusual), I don't see a complexity problem. What difficulties do you envision to implement it? What difficulties do you envision to use it? Personally, I'd like to see more motivating examples, as well as limitations. For instance: can you store a std::string in the vtable (or equivalent)? -- 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. Visit this group at http://groups.google.com/a/isocpp.org/group/std-proposals/. --001a113497667d08cf05119a6b0f Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
On 18 March 2015 at 20:30, Nico= l Bolas <jmckesson@gmail.com> wrote:
This is a whole lo= t of complexity just to do cheaper RTTI.

<= div>While I see a vocabulary problem (given that this is something new, it = isn't necessarily unusual), I don't see a complexity problem.=C2=A0= What difficulties do you envision to implement it?=C2=A0 What difficulties= do you envision to use it?

Personally, I'd li= ke to see more motivating examples, as well as limitations.=C2=A0 For insta= nce: =C2=A0can you store a std::string in the vtable (or equivalent)?
=
--=C2=A0
=C2=A0Nevin &qu= ot;:-)" Liber=C2=A0 <mailto:nevin@eviloverlord.com>=C2=A0 (847) 691-1404

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