220 12473 <786A91FC-E02E-4205-908A-09D9281D8E53@gmail.com> article Path: news.gmane.org!not-for-mail From: David Krauss Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Placeholder literals Date: Mon, 25 Aug 2014 11:14:58 +0800 Lines: 70 Approved: news@gmane.org Message-ID: <786A91FC-E02E-4205-908A-09D9281D8E53@gmail.com> References: <570663A9-F617-442F-9B48-5B6E7311AE72@gmail.com> <87sikl46bs.fsf@euclid.axiomatics.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.6\)) Content-Type: multipart/alternative; boundary="Apple-Mail=_7D370FA3-17E9-4325-8F8E-FCEF08728068" X-Trace: ger.gmane.org 1408936519 29636 80.91.229.3 (25 Aug 2014 03:15:19 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 25 Aug 2014 03:15:19 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCW25A7E3QCRBPWU5KPQKGQE3VE34VQ@isocpp.org Mon Aug 25 05:15:12 2014 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-oi0-f70.google.com ([209.85.218.70]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1XLkkS-0007wt-Df for gclcip-std-proposals@m.gmane.org; Mon, 25 Aug 2014 05:15:12 +0200 Original-Received: by mail-oi0-f70.google.com with SMTP id u20sf67545613oif.5 for ; Sun, 24 Aug 2014 20:15:11 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:message-id:mime-version:subject:date :references:to:in-reply-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=p55GTQ7klTLM812ixPdI5jkjcy63zJ9a8qqZ4GsZuMA=; b=WW4rZwAc+VO9ZeWgdSGskruHMSQky6AZdb4VOmJ3zu6XnVvdkR6ajCARjjyQK/4skE lR1Ho4P1BfFVCncra+gFK46MFDyqEsVMdsC2XY4qN4yCVWUOqSnobGEsuzt8SO7xl9Hy xVk+cYn/1MLdVYXydsVQ3JL79XzrySP8nssKUGim6dPni2nDU6Se3/LXZc2n+AQ+Hbqf DBUYxC+azKjZ9JlpeoZSIQF3Wry95TC2ae/4YdfYEPN0vfNkwFUdnU+hxEHoUTTNnxnl ePVDCk+W234hoX3OClhPtE54OtRgnf0vT2myzKC+HwUjeHAhfFJ6L5CQ4IHhY13odViH 0F1A== X-Gm-Message-State: ALoCoQktwQdL5GwxmoZ4eb9y1rglb/MYby+jNFA5vwlkngM2/91+Agb1xZ3AM1eht7QEx5BZehB/ X-Received: by 10.42.212.207 with SMTP id gt15mr3085257icb.31.1408936511175; Sun, 24 Aug 2014 20:15:11 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.50.4.33 with SMTP id h1ls1047225igh.14.gmail; Sun, 24 Aug 2014 20:15:10 -0700 (PDT) X-Received: by 10.66.164.65 with SMTP id yo1mr24866388pab.22.1408936510361; Sun, 24 Aug 2014 20:15:10 -0700 (PDT) Original-Received: from mail-pa0-x22c.google.com (mail-pa0-x22c.google.com [2607:f8b0:400e:c03::22c]) by mx.google.com with ESMTPS id bw10si51228255pad.48.2014.08.24.20.15.10 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Sun, 24 Aug 2014 20:15:10 -0700 (PDT) Received-SPF: pass (google.com: domain of potswa@gmail.com designates 2607:f8b0:400e:c03::22c as permitted sender) client-ip=2607:f8b0:400e:c03::22c; Original-Received: by mail-pa0-f44.google.com with SMTP id eu11so20032656pac.31 for ; Sun, 24 Aug 2014 20:15:10 -0700 (PDT) X-Received: by 10.66.122.3 with SMTP id lo3mr24713461pab.7.1408936510257; Sun, 24 Aug 2014 20:15:10 -0700 (PDT) Original-Received: from [172.20.10.2] ([121.54.54.147]) by mx.google.com with ESMTPSA id qh8sm13486894pdb.50.2014.08.24.20.15.07 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Sun, 24 Aug 2014 20:15:09 -0700 (PDT) In-Reply-To: <87sikl46bs.fsf@euclid.axiomatics.org> X-Mailer: Apple Mail (2.1878.6) X-Original-Sender: potswa@gmail.com X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of potswa@gmail.com designates 2607:f8b0:400e:c03::22c as permitted sender) smtp.mail=potswa@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:12473 Archived-At: --Apple-Mail=_7D370FA3-17E9-4325-8F8E-FCEF08728068 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=ISO-8859-1 On 2014-08-25, at 11:05 AM, Gabriel Dos Reis wrote: > In the long tradition of Unix-rooted practice, I would have expected $n > to figure prominently among the alternatives. >=20 > (Please don't tell me '$' isn't in the basic source character set.) Character sets aren't a showstopper per se given UCNs, but $ isn't among th= e UCNs that may begin an identifier. (Some implementations do allow it as a= nonconforming extension, but I don't suppose a proposal to add it to [char= name.allowed] would be uncontroversial.) Also, we need a suffix to match the user-defined-literal grammar. 3$ doesn'= t really look UNIXy. --=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/. --Apple-Mail=_7D370FA3-17E9-4325-8F8E-FCEF08728068 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=ISO-8859-1
On 2014&= ndash;08–25, at 11:05 AM, Gabriel Dos Reis <gdr@axiomatics.org> wrote:

In the long tradition of Unix= -rooted practice, I would have expected $n
to figure prominently among t= he alternatives.

(Please don't tell me '$' isn't in the basic source= character set.)

Character sets a= ren’t a showstopper per se given UCNs, but $ isn't among the UCNs that may begin an identifier. (Some implementati= ons do allow it as a nonconforming extension, but I don’t suppose a p= roposal to add it to [charname.allowed] would be uncontroversial.)

Also, we need a suffix to match the user-defined-litera= l grammar. 3$ doesn’t really look U= NIXy.

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