220 11536 <20140620202026.GA29898@bacon.lysator.liu.se> article Path: news.gmane.org!not-for-mail From: Magnus Fromreide Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Controversy and debate: Uninitialized variables by default is a bug Date: Fri, 20 Jun 2014 22:20:26 +0200 Lines: 36 Approved: news@gmane.org Message-ID: <20140620202026.GA29898@bacon.lysator.liu.se> References: <60caa4ef-b32d-40fe-97b6-8918fbb2bd51@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 X-Trace: ger.gmane.org 1403295637 20321 80.91.229.3 (20 Jun 2014 20:20:37 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 20 Jun 2014 20:20:37 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBDELLREETMBRBDNPSKOQKGQEVZ2SPYA@isocpp.org Fri Jun 20 22:20:30 2014 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-lb0-f197.google.com ([209.85.217.197]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Wy5IU-0006sN-HA for gclcip-std-proposals@m.gmane.org; Fri, 20 Jun 2014 22:20:30 +0200 Original-Received: by mail-lb0-f197.google.com with SMTP id 10sf2765567lbg.4 for ; Fri, 20 Jun 2014 13:20:30 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:date:from:to:subject:message-id:mail-followup-to :references:mime-version:in-reply-to:user-agent: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-disposition; bh=tWOu/sKt31TsPeHQcobxhOvMn7UNsEuXjTkSrn2GkPw=; b=PCB/oiIkR7NxSWUPcxHgQzAoFSdyzXqDFp8QoPeIajldCiyzPyqSVBpHuMgqDQ4mlo PagIF1weMP723mQWOdPOF628j/grZPYwi++1Yx7tewLWHW0wgCA8wZHRZ0yTswT+tvA1 P6uZpezZwRLtcBd15EuU9xRV9r65Sx5xX7RL++s+Qrj4PHhEnzwOFzWk4N52oIX31Rc0 ktjuuDrQsRnEuFL7tGp3DiTXt1HhnnYjwyWyEYkNYAVgkWKpjM0G5YLkWCskFFGk6Xxg bf3F+9VMmY9qZUs7yFjm/JT/34131AkWJagYojbO6knFpHfbC5FLIZhcTTnKbSb0vAvv X-Gm-Message-State: ALoCoQl2UCOyK4mEVKs2O/jAMgZKv1ad8BE0i2F/TGwKIpYl+xX9MUxw90zIJ1L4q2L7HLeHOc3t X-Received: by 10.152.36.226 with SMTP id t2mr526128laj.1.1403295630244; Fri, 20 Jun 2014 13:20:30 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.180.37.206 with SMTP id a14ls134150wik.51.gmail; Fri, 20 Jun 2014 13:20:28 -0700 (PDT) X-Received: by 10.194.216.136 with SMTP id oq8mr6809347wjc.33.1403295628639; Fri, 20 Jun 2014 13:20:28 -0700 (PDT) Original-Received: from bacon.lysator.liu.se (bacon.lysator.liu.se. [2001:6b0:17:f0a0::ce]) by mx.google.com with ESMTPS id vk2si12576781wjc.54.2014.06.20.13.20.28 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Fri, 20 Jun 2014 13:20:28 -0700 (PDT) Received-SPF: none (google.com: magfr@bacon.lysator.liu.se does not designate permitted sender hosts) client-ip=2001:6b0:17:f0a0::ce; Original-Received: from bacon.lysator.liu.se (localhost [127.0.0.1]) by bacon.lysator.liu.se (8.14.5+Sun/8.14.5) with ESMTP id s5KKKRMP000505 for ; Fri, 20 Jun 2014 22:20:27 +0200 (MEST) Original-Received: (from magfr@localhost) by bacon.lysator.liu.se (8.14.5+Sun/8.14.5/Submit) id s5KKKRJH000504 for std-proposals@isocpp.org; Fri, 20 Jun 2014 22:20:27 +0200 (MEST) Mail-Followup-To: std-proposals@isocpp.org In-Reply-To: User-Agent: Mutt/1.5.12-2006-07-14 X-Original-Sender: magfr@lysator.liu.se X-Original-Authentication-Results: mx.google.com; spf=neutral (google.com: magfr@bacon.lysator.liu.se does not designate permitted sender hosts) smtp.mail=magfr@bacon.lysator.liu.se 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: , Content-Disposition: inline Xref: news.gmane.org gmane.comp.lang.c++.isocpp.proposals:11536 Archived-At: On Tue, Jun 17, 2014 at 09:20:13AM -0700, Jim Porter wrote: > On Tuesday, June 17, 2014 10:58:55 AM UTC-5, Nevin ":-)" Liber wrote: > > > > On 17 June 2014 17:49, Matthew Fioravante > > wrote: > > > > > Plus, that ship has sailed with C a long, long time ago... > > > > I think it would be reasonable to add the option > explicit-non-initialization to the standard, e.g. > > int foo; // doesn't initialize > int foo = __no_init__; // doesn't initialize > int foo = 0; // initializes That would probably require some way to detect explicit-non-initialization in order to support std::vector v(MEGABYTE, __no_init__); // a megabyte vector with // unspecified content which seems like a natural extension if explicit non-initialization is added to the language. /MF -- --- You received this message because you are subscribed to the Google Groups "ISO C++ Standard - Future Proposals" group. 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