220 40097 article Path: news.gmane.org!.POSTED!not-for-mail From: Matthew Woehlke Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Named Parameters for C++ Date: Wed, 29 Aug 2018 17:01:50 -0400 Lines: 24 Approved: news@gmane.org Message-ID: References: <4f02dc49-5945-f245-c7ca-76d2d9ab83be@gmail.com> <8693c5c4-d544-1ee0-ae12-b3c2f5c1537f@gmail.com> <735cf8f8-41e8-49b3-9dec-1ff47e2a47f8@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 1535576388 28321 195.159.176.226 (29 Aug 2018 20:59:48 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 29 Aug 2018 20:59:48 +0000 (UTC) User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 To: std-proposals@isocpp.org, Jake Arkinstall Original-X-From: std-proposals+bncBC37LBFWUIFBBQETTTOAKGQEVHU5NNI@isocpp.org Wed Aug 29 22:59:44 2018 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-qk0-f199.google.com ([209.85.220.199]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fv7Z2-0007EH-8T for gclcip-std-proposals@m.gmane.org; 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[66.194.253.20]) by smtp.googlemail.com with ESMTPSA id w3-v6sm2580315qkd.64.2018.08.29.14.01.51 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 29 Aug 2018 14:01:51 -0700 (PDT) Openpgp: preference=signencrypt In-Reply-To: Content-Language: en-US X-Original-Sender: mwoehlke.floss@gmail.com X-Original-Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b="a9o9pWs/"; spf=pass (google.com: domain of mwoehlke.floss@gmail.com designates 209.85.220.41 as permitted sender) smtp.mailfrom=mwoehlke.floss@gmail.com; dmarc=pass (p=NONE sp=QUARANTINE 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:40097 Archived-At: On 2018-08-29 16:36, Jake Arkinstall wrote: > What I don't understand is why we would rather make [designated > initializers that don't match declaration order] an error than define > an order of evaluation, make it UB, or only cause an error when > non-trivial types are used. I suppose the folks that wanted it to be an error probably felt that allowing ctor initializers to be reordered (i.e. written in other than declaration order) never should have been allowed either? OTOH, given that ctor initializers can (safely!) refer to earlier members, there may be a larger scope for insidious errors, there. OTGH, there are folks that don't like that order of function parameter evaluation is unspecified... -- Matthew -- 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/f7feae43-1450-9fe9-330b-0d33f9caf57b%40gmail.com. .