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[2a00:1450:400c:c01::241]) by mx.google.com with ESMTPS id fd10si11910490wjc.122.2016.12.17.06.22.09 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 17 Dec 2016 06:22:09 -0800 (PST) Received-SPF: pass (google.com: domain of jonathanmueller.dev@gmail.com designates 2a00:1450:400c:c01::241 as permitted sender) client-ip=2a00:1450:400c:c01::241; Original-Received: by mail-wj0-x241.google.com with SMTP id kp2so17939427wjc.0 for ; Sat, 17 Dec 2016 06:22:09 -0800 (PST) X-Received: by 10.194.172.100 with SMTP id bb4mr6683464wjc.53.1481984528772; Sat, 17 Dec 2016 06:22:08 -0800 (PST) Original-Received: from [192.168.1.98] (dslb-084-060-205-232.084.060.pools.vodafone-ip.de. [84.60.205.232]) by smtp.gmail.com with ESMTPSA id z6sm11677619wjt.24.2016.12.17.06.22.07 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 17 Dec 2016 06:22:08 -0800 (PST) In-Reply-To: <20161217141109.GA22645@manuel-ThinkPad-L440.localdomain> X-Original-Sender: jonathanmueller.dev@gmail.com X-Original-Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com; spf=pass (google.com: domain of jonathanmueller.dev@gmail.com designates 2a00:1450:400c:c01::241 as permitted sender) smtp.mailfrom=jonathanmueller.dev@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:29869 Archived-At: On 17.12.2016 15:11, Manuel Bergler wrote: > Sean Parent gave a talk[1] at Code::Dive this year where he talks about the > problems of such a clone_ptr type. > > (He actually starts with a clone_ptr that was proposed to the Standards > Committee > but is different to the one proposed here, but then discussing alternatives > that might seem reasonable) > > Best > Manuel > > [1] https://youtu.be/cK_kftBNgBc?t=40m45s > I was not aware of this talk, thank you. Sean Parent worded it better (and had better examples), but that's my opinion as well: clone_ptr is not a smart pointer. If you want one, don't provide copy/assignment but add (non-)member clone() that does the deep copy. -- 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/b1c473be-03c1-e4db-f0c4-a23f182c7154%40gmail.com. .