220 8652 article Path: news.gmane.org!not-for-mail From: Nevin Liber Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: string_view::is_null() Date: Fri, 17 Jan 2014 14:18:44 -0600 Lines: 68 Approved: news@gmane.org Message-ID: References: <8045a4d2-721d-4725-8bb7-7a91b6f53ec8@isocpp.org> <186E0927-C962-4E34-AED0-E7509DD1F0A0@gmail.com> <7aad44d8-6b4e-438a-b309-bd898b994b34@isocpp.org> <9C2C439F-7983-4224-B272-53CAD0E2E456@gmail.com> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary=f46d043c06be1bad3b04f0304289 X-Trace: ger.gmane.org 1389989959 7304 80.91.229.3 (17 Jan 2014 20:19:19 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 17 Jan 2014 20:19:19 +0000 (UTC) To: "std-proposals@isocpp.org" Original-X-From: std-proposals+bncBCE35H5S6IDBBTNA42LAKGQEWKP7S4Y@isocpp.org Fri Jan 17 21:19:27 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 1W4Ft0-0005W6-NQ for gclcip-std-proposals@m.gmane.org; Fri, 17 Jan 2014 21:19:26 +0100 Original-Received: by mail-wg0-f72.google.com with SMTP id y10sf7069853wgg.7 for ; Fri, 17 Jan 2014 12:19:26 -0800 (PST) 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: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=jHUtPsgTThitydbH8nx9VmmYwOG1eYBhEkXTbfTKjbQ=; b=iZ+jdcsx21VtPC4KrenZeAg1hB26gYpBkxucIascxZcZpNvSDsK3sQ/HfBFve0mS2b iUNDO0kuX4vvM64uFSdtrfhag3siFrlQf4c2l+Go98wnl8jM0m1EXwe686pbj43beoTK D3spuMUfQ9gPQBsn8OB+QgGceskWfW1iSzXxrOSTKEP7CHvs1QmNnpWdhfTV3iS2M+q0 Sn6cV2CbzqDD3iv2c5NbihJ86GHpjXZJtfW+DUUNbmXQDIYMSNd6p/INGp53KvHPAnLl 0EWjr5k/hyHxh2d+ClZB6bFZaTtFYT6AHzPKX3a0hP/CjbQ7B929Hnh5L6K66DjIG6u5 W5EA== X-Gm-Message-State: ALoCoQlikXlUhm43VESEg/4vbUf6s8ehZ/+Mvxs7A//9v3r+w7pFpXdrBGb2Z5pqFsiDTuZweViS X-Received: by 10.112.209.65 with SMTP id mk1mr1830470lbc.19.1389989966283; Fri, 17 Jan 2014 12:19:26 -0800 (PST) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.180.93.69 with SMTP id cs5ls179869wib.19.gmail; Fri, 17 Jan 2014 12:19:25 -0800 (PST) X-Received: by 10.180.86.9 with SMTP id l9mr182165wiz.20.1389989965358; Fri, 17 Jan 2014 12:19:25 -0800 (PST) Original-Received: from mail-wg0-x233.google.com (mail-wg0-x233.google.com [2a00:1450:400c:c00::233]) by mx.google.com with ESMTPS id cc14si2186490wib.54.2014.01.17.12.19.25 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 17 Jan 2014 12:19:25 -0800 (PST) Received-SPF: pass (google.com: domain of nliber@gmail.com designates 2a00:1450:400c:c00::233 as permitted sender) client-ip=2a00:1450:400c:c00::233; Original-Received: by mail-wg0-f51.google.com with SMTP id z12so4877857wgg.18 for ; Fri, 17 Jan 2014 12:19:25 -0800 (PST) X-Received: by 10.181.13.112 with SMTP id ex16mr85951wid.23.1389989965046; Fri, 17 Jan 2014 12:19:25 -0800 (PST) Original-Sender: nliber@gmail.com Original-Received: by 10.194.121.163 with HTTP; Fri, 17 Jan 2014 12:18:44 -0800 (PST) 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 2a00:1450:400c:c00::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:8652 Archived-At: --f46d043c06be1bad3b04f0304289 Content-Type: text/plain; charset=ISO-8859-1 On 17 January 2014 14:11, Jeffrey Yasskin wrote: > If it is, I intend to also > remove the precondition on the string_view(data, size) to let people > explicitly put nullptr in. I'd like to, mainly because it makes it easy to create a string_view from a vector by using v.data() and v.size(). Having to special case a check for nullptr (such as in string::string(const char*, size_t)) for what is otherwise a perfectly valid 0-sized range is just annoying. -- 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/. --f46d043c06be1bad3b04f0304289 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
On 17 January 2014 14:11, Jeffrey Yasskin <jyasskin@goo= gle.com> wrote:
If it is, I intend to also
=
remove the precondition on the string_view(data, size) to let people
explicitly put nullptr in.

I'd like to= , mainly because it makes it easy to create a string_view from a vector<= char> by using v.data() and v.size(). =A0Having to special case a check = for nullptr (such as in string::string(const char*, size_t)) for what is ot= herwise a perfectly valid 0-sized range is just annoying.
--
=A0Nevin ":-)" Liber=A0 <mailto:nevin@eviloverlord.com>= =A0 (847) 691-1404

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