220 24201 article Path: news.gmane.org!not-for-mail From: Ville Voutilainen Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Proposal: Change the specified behavior when control flow reaches the end of non-void functions Date: Fri, 5 Feb 2016 01:32:52 +0200 Lines: 31 Approved: news@gmane.org Message-ID: References: <5115b78c-8fb4-4c72-a278-f74c636f5217@isocpp.org> <2511401.bv6yOhHB5J@tjmaciei-mobl4> <1851432.TiVlt5xrhH@tjmaciei-mobl4> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Trace: ger.gmane.org 1454628778 30594 80.91.229.3 (4 Feb 2016 23:32:58 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 4 Feb 2016 23:32:58 +0000 (UTC) To: "ISO C++ Standard - Future Proposals" Original-X-From: std-proposals+bncBC5JHI7A7ALRBJF7Z62QKGQEN33QKHY@isocpp.org Fri Feb 05 00:32:58 2016 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-io0-f198.google.com ([209.85.223.198]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1aRTOT-0004EI-IM for gclcip-std-proposals@m.gmane.org; Fri, 05 Feb 2016 00:32:57 +0100 Original-Received: by mail-io0-f198.google.com with SMTP id j13sf225441519ioe.0 for ; Thu, 04 Feb 2016 15:32:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=isocpp-org.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:x-original-sender:x-original-authentication-results :reply-to:precedence:mailing-list:list-id:x-spam-checked-in-group :list-post:list-help:list-archive:list-subscribe:list-unsubscribe; bh=Kl+q3UzQEzVC3uR3jrTK+EKCMB+o+xloLwQNDWTKKfE=; b=Qu1VBA2NFgpXxOVwpKHwybfmxi3tYghreg07C6kx/3Htc7NF5m1aKXTatFGMuk7zdA Ys3KOHgJsPlnFQG/26tbPQhbRz7VUv/ngK34GZv8fgrxWXdNEgSPJvQsYhG51L8qlxYR ig8UKPv7ZQlxdqwHU3ItvVUpef0/M9X8fJGk/PkMDs+aowu+gQt2TmYapswp2WyBHVOP Timp84La+jBKXBfMSdEjm1mRzLuBrkGj/68m1+WX3FaF7JIGuj9nFpNqhUbVPocFB2Zl Rj2zue8nk9eEvyiir99OMvNHTqUpK+Y5a32eGZZ+gr24g9+QAlcxQ7KpFbf/300UO8CO qx4Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:content-type:x-original-sender :x-original-authentication-results:reply-to:precedence:mailing-list :list-id:x-spam-checked-in-group:list-post:list-help:list-archive :list-subscribe:list-unsubscribe; bh=Kl+q3UzQEzVC3uR3jrTK+EKCMB+o+xloLwQNDWTKKfE=; b=Z23CycNlycvUbdCuiXICWJeI1OB+DeZ3bHGztM8SfuHBW5TQCBLrHSjNOwtF9a0YV6 HHRXeJxk03R9SR8zswiZUTvwZnsKkMPZIMKGAXjCKi7P0Yoty/GAitvj66cgXHk5aCEb 3R/LjwHGbKLywIxB8K6EShxPzyJ0u16HA35ZCDzyV7nlOBODZA0LAmPRp900WZJsbJlg 3j9ZcLlDVHsKH9aGD/xe54Be9Fn901cz06w7XBihnyXidUpFsVZhiKCo07C3zdY2IyWA jSO9wLEq/Vh8/c5Y6FrO/osC4wgGvPXq8eeQXiBnkHVe0Fm0MRQgjwOnduHRz5zxYtH9 5Wxg== X-Gm-Message-State: AG10YORx95IIcwV1VQzl1bENoKBYdsnPgmVhhAscn6jDtXkMRpYWm47L31mEOjSD0cTGnQ== X-Received: by 10.50.56.109 with SMTP id z13mr11274504igp.7.1454628776536; Thu, 04 Feb 2016 15:32:56 -0800 (PST) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.140.32.137 with SMTP id h9ls1519649qgh.22.gmail; Thu, 04 Feb 2016 15:32:52 -0800 (PST) X-Received: by 10.31.54.207 with SMTP id d198mr7480650vka.119.1454628772406; Thu, 04 Feb 2016 15:32:52 -0800 (PST) Original-Received: from mail-vk0-x230.google.com (mail-vk0-x230.google.com. [2607:f8b0:400c:c05::230]) by mx.google.com with ESMTPS id f129si12816775vke.116.2016.02.04.15.32.52 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 04 Feb 2016 15:32:52 -0800 (PST) Received-SPF: pass (google.com: domain of ville.voutilainen@gmail.com designates 2607:f8b0:400c:c05::230 as permitted sender) client-ip=2607:f8b0:400c:c05::230; Original-Received: by mail-vk0-x230.google.com with SMTP id e185so46713933vkb.1 for ; Thu, 04 Feb 2016 15:32:52 -0800 (PST) X-Received: by 10.31.16.37 with SMTP id g37mr7040719vki.97.1454628772170; Thu, 04 Feb 2016 15:32:52 -0800 (PST) Original-Received: by 10.103.112.131 with HTTP; Thu, 4 Feb 2016 15:32:52 -0800 (PST) In-Reply-To: X-Original-Sender: ville.voutilainen@gmail.com X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of ville.voutilainen@gmail.com designates 2607:f8b0:400c:c05::230 as permitted sender) smtp.mailfrom=ville.voutilainen@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-Spam-Checked-In-Group: std-proposals@isocpp.org 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:24201 Archived-At: On 5 February 2016 at 01:25, 'Edward Catmur' via ISO C++ Standard - Future Proposals >> > > The information loss is not a requirement. The runtime could print the >> > > reason >> > > for termination before termination. >> > >> > How? std::terminate_handler is specified as void(*)() so there's nowhere >> > to >> > pass in the reason. Existing terminate_handlers look at >> > std::current_exception, so I suppose you could smuggle it in there, but >> > then you might as well throw that exception directly. >> >> Because the compiler does not need to directly call std::terminate. It can >> call a function of its own that prints the information, then calls >> std::terminate. > Thereby requiring that all C++ programs have a console attached, and denying > them control over what is output to that console? Doing that does not in any way require a console to be attached, and various tools have been outputting such diagnostics into the standard error output many years. I don't quite grasp what you think is the problem here. -- --- 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 https://groups.google.com/a/isocpp.org/group/std-proposals/. .