220 33738 <1894906.unAOSKiKQz@tjmaciei-mobl1> article Path: news.gmane.org!.POSTED!not-for-mail From: Thiago Macieira Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: string_view for fstream::open() Date: Wed, 09 Aug 2017 12:49:32 -0700 Lines: 22 Approved: news@gmane.org Message-ID: <1894906.unAOSKiKQz@tjmaciei-mobl1> References: <9fedbad3-c6f6-4dbe-a215-814666c52c6b@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" X-Trace: blaine.gmane.org 1502308183 3167 195.159.176.226 (9 Aug 2017 19:49:43 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 9 Aug 2017 19:49:43 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCB4TK757YBRBVGOVXGAKGQEYO2INNA@isocpp.org Wed Aug 09 21:49:38 2017 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-lf0-f71.google.com ([209.85.215.71]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dfWz0-0000Q0-V4 for gclcip-std-proposals@m.gmane.org; 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[2a01:4f8:d13:f81:21c:14ff:fe01:12a3]) by mx.google.com with ESMTP id u68si3692608wmd.21.2017.08.09.12.49.40 for ; Wed, 09 Aug 2017 12:49:40 -0700 (PDT) Received-SPF: pass (google.com: domain of thiago@macieira.org designates 2a01:4f8:d13:f81:21c:14ff:fe01:12a3 as permitted sender) client-ip=2a01:4f8:d13:f81:21c:14ff:fe01:12a3; Original-Received: from tjmaciei-mobl1.localnet (unknown [134.134.139.76]) by gondolin.macieira.info (Postfix) with ESMTPSA id B46D411B6BC for ; Wed, 9 Aug 2017 12:49:39 -0700 (PDT) In-Reply-To: X-Original-Sender: thiago@macieira.org X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of thiago@macieira.org designates 2a01:4f8:d13:f81:21c:14ff:fe01:12a3 as permitted sender) smtp.mailfrom=thiago@macieira.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:33738 Archived-At: On quarta-feira, 9 de agosto de 2017 09:15:59 PDT 'Jeffrey Yasskin' via ISO C+ + Standard - Future Proposals wrote: > However, being system calls, they also cost significantly more than > the cost of copying a path-length string, so don't be too afraid of > just doing that. The problem is the copying an input of arbitrary length in an exception-free and thread-safe manner. You can't do malloc(), since that might fail. You can't use new[] because it might throw. You can't lock a mutex because that is not async signal safe. -- Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org Software Architect - Intel Open Source Technology Center -- 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. To view this discussion on the web visit https://groups.google.com/a/isocpp.org/d/msgid/std-proposals/1894906.unAOSKiKQz%40tjmaciei-mobl1. .