220 28324 article Path: news.gmane.org!.POSTED!not-for-mail From: Ville Voutilainen Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: Trivial copyability and `optiona/variant`. 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[2607:f8b0:400c:c08::22d]) by mx.google.com with ESMTPS id 71si1731758uak.89.2016.09.22.15.23.49 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 22 Sep 2016 15:23:49 -0700 (PDT) Received-SPF: pass (google.com: domain of ville.voutilainen@gmail.com designates 2607:f8b0:400c:c08::22d as permitted sender) client-ip=2607:f8b0:400c:c08::22d; Original-Received: by mail-ua0-x22d.google.com with SMTP id u68so15427597uau.0 for ; Thu, 22 Sep 2016 15:23:49 -0700 (PDT) X-Received: by 10.159.36.117 with SMTP id 108mr1790446uaq.157.1474583029699; Thu, 22 Sep 2016 15:23:49 -0700 (PDT) Original-Received: by 10.103.104.193 with HTTP; Thu, 22 Sep 2016 15:23:49 -0700 (PDT) In-Reply-To: <47c7c8cf-13f4-4026-acf4-41ca1d2a3e53@isocpp.org> X-Original-Sender: ville.voutilainen@gmail.com X-Original-Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com; spf=pass (google.com: domain of ville.voutilainen@gmail.com designates 2607:f8b0:400c:c08::22d as permitted sender) smtp.mailfrom=ville.voutilainen@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-Google-Group-Id: 399137483710 List-Post: , List-Help: , List-Archive: List-Subscribe: , List-Unsubscribe: , Xref: news.gmane.org gmane.comp.lang.c++.isocpp.proposals:28324 Archived-At: On 23 September 2016 at 00:46, Casey Carter wrote: > Those requirements are implementable: the Microsoft implementations of > optional and variant maintain trivial copyability of the contained types. It > seems to be QoI to me; I see no strong motivation to *require* that > behavior. Portability would seem like a fairly good motivation for that to me. -- 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/CAFk2RUZ5a%2Bfwj%2BfXhqFfVYmtxitLu7xFrhJ%2BkHY-QUOWb3hEmg%40mail.gmail.com. .