220 12474 <87sikl2r23.fsf@euclid.axiomatics.org> article Path: news.gmane.org!not-for-mail From: Gabriel Dos Reis Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Placeholder literals Date: Sun, 24 Aug 2014 20:20:36 -0700 Organization: axiomatics.org Lines: 50 Approved: news@gmane.org Message-ID: <87sikl2r23.fsf@euclid.axiomatics.org> References: <570663A9-F617-442F-9B48-5B6E7311AE72@gmail.com> <87sikl46bs.fsf@euclid.axiomatics.org> <786A91FC-E02E-4205-908A-09D9281D8E53@gmail.com> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1408936847 32571 80.91.229.3 (25 Aug 2014 03:20:47 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 25 Aug 2014 03:20:47 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCSYNQUB2UHRBBGX5KPQKGQEMFH4L5A@isocpp.org Mon Aug 25 05:20:40 2014 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-ie0-f197.google.com ([209.85.223.197]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1XLkpk-0001lL-6i for gclcip-std-proposals@m.gmane.org; Mon, 25 Aug 2014 05:20:40 +0200 Original-Received: by mail-ie0-f197.google.com with SMTP id rp18sf38964990iec.4 for ; Sun, 24 Aug 2014 20:20:38 -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:to:subject:in-reply-to:organization :references:sender:date:message-id:lines:mime-version :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 :content-transfer-encoding; bh=+tahrbT2nEvQp4fOUUUCNaywtJ1ECFvhMRtfyAKECJE=; b=SF0+oOAZ8GxxraotIMrdh8JliYe2cBI4zeXXiBEZIdfsL3sXg5N4BvB9mn+occzT0b adedskoqvGSdh8wrdJwYodqXf66PeApVNZmm+apXBEoLczS0HXPstiFCK4vkbiEXpyOX KnmOYvw3uMT2y8S21+Hqu6bS8uBy/g5Y5r7vwCgILiuqIK0XDa3t0nn8kEk0mDRbFPAh zPdGqGZLFzhpoZ5eyzzI5rbDTPXIkGRIArQJKxr6t9wOUH8OK27lCM7W9+i1fhWw/K8c Eht3ZmwZOtpk3AsFHXGoUU2/Skvl1NT7GbHl2CKKQSlwr9tmn6S3nqi2 X-Gm-Message-State: ALoCoQlzM7CDjXecorRaFci+2L58NztQH5QVVhHtslfRW2ejD6ihsOyvab1akg/t7Ye/PVOZdZNE X-Received: by 10.50.25.41 with SMTP id z9mr8881746igf.2.1408936838536; Sun, 24 Aug 2014 20:20:38 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.182.32.6 with SMTP id e6ls625209obi.41.gmail; Sun, 24 Aug 2014 20:20:36 -0700 (PDT) X-Received: by 10.60.54.132 with SMTP id j4mr18969766oep.34.1408936836528; Sun, 24 Aug 2014 20:20:36 -0700 (PDT) Original-Received: from mail.axiomatics.org ([2600:3c00::f03c:91ff:feae:e0e6]) by mx.google.com with ESMTP id ds2si44606824obb.97.2014.08.24.20.20.36 for ; Sun, 24 Aug 2014 20:20:36 -0700 (PDT) Received-SPF: none (google.com: gdr@axiomatics.org does not designate permitted sender hosts) client-ip=2600:3c00::f03c:91ff:feae:e0e6; Original-Received: from euclid.axiomatics.org (localhost [IPv6:::1]) by mail.axiomatics.org (Postfix) with ESMTP id 4C3A1F278 for ; Sun, 24 Aug 2014 20:20:36 -0700 (PDT) In-Reply-To: <786A91FC-E02E-4205-908A-09D9281D8E53@gmail.com> (David Krauss's message of "Mon, 25 Aug 2014 11:14:58 +0800") Original-Sender: gdr@axiomatics.org Original-Lines: 35 X-Original-Sender: gdr@axiomatics.org X-Original-Authentication-Results: mx.google.com; spf=neutral (google.com: gdr@axiomatics.org does not designate permitted sender hosts) smtp.mail=gdr@axiomatics.org 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:12474 Archived-At: David Krauss writes: | On 2014=E2=80=9308=E2=80=9325, at 11:05 AM, Gabriel Dos Reis | wrote: |=20 | 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.) | =20 |=20 | Character sets aren=E2=80=99t a showstopper per se given UCNs, but $ isn'= t | among the UCNs that may begin an identifier. (Some implementations do | allow it as a nonconforming extension, but I don=E2=80=99t suppose a prop= osal | to add it to [charname.allowed] would be uncontroversial.) I guess my point is we don't need to go to UCN -- they are in general just obfuscations. WG21 can decree that '$' is in the basic source character set. All mainstreams implementations will just be fine. Question: which implementation will have difficulty accomodating that and why? Note: Allowing '$' as part of the basic character set does not necessarily mean that it is OK in identifiers in users' name space. Many of the existing characters in the basic source character set are of that nature. | Also, we need a suffix to match the user-defined-literal grammar. 3$ | doesn=E2=80=99t really look UNIXy. Well, that may have to wait :-) -- Gaby --=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/. .