220 29874 article Path: news.gmane.org!.POSTED!not-for-mail From: Ville Voutilainen Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: New smart pointer: CopyConstructible and CopyAssignable flavor of unique_ptr Date: Sat, 17 Dec 2016 18:10:10 +0200 Lines: 28 Approved: news@gmane.org Message-ID: References: <13702f32-32c2-447f-9996-3624fd678675@isocpp.org> <67a9e9ed-8748-4098-a43b-33598b516464@isocpp.org> <20161217141109.GA22645@manuel-ThinkPad-L440.localdomain> <3df7e8eb-01a0-7804-f476-504b5a25a9fe@gmail.com> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Trace: blaine.gmane.org 1481991015 31537 195.159.176.226 (17 Dec 2016 16:10:15 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sat, 17 Dec 2016 16:10:15 +0000 (UTC) To: "ISO C++ Standard - Future Proposals" Original-X-From: std-proposals+bncBC5JHI7A7ALRBY6G2XBAKGQEIM3DFUI@isocpp.org Sat Dec 17 17:10:10 2016 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-it0-f72.google.com ([209.85.214.72]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cIHYm-0006rq-21 for gclcip-std-proposals@m.gmane.org; Sat, 17 Dec 2016 17:10:08 +0100 Original-Received: by mail-it0-f72.google.com with SMTP id g187sf46729359itc.2 for ; Sat, 17 Dec 2016 08:10:12 -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:from:date:message-id:subject:to :content-transfer-encoding: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=YBFhkL3zixrh2Svz/ydsiKxc+pzMTCz5RvTS04m0v84=; b=Ry0dPIlbGjWdPRXwV0ur3OvcsLWEdDQL/zvW6mCiBDfh/oN4uiwRy3pnIi0hYftxe1 czNc3kJzcCo0u+vHjYOxGTJQC2dNKyM6pCgwwDXQSfnqENzHBzdDCbTIaQC3f9yVWtcU JTnbA1y9N46CNgWNXquSnnekScELn4JvPzUTNMB0JwpCpjXu2bf5Vq81bNdaUjttJuV4 7m0x17yIiJA8s4+l9RQ6SjmpA5nVxmkCpDoZ4oGrVFuwUUzYJbymOhzdwWEuo302mjqg yOdY/AnW+qMfsMlyp/EHiqyev3vgSO2gcDTvV+gXqY9B1zrRBGXiMFF0NGiHB1zUTpC9 HdMQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:content-transfer-encoding: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=YBFhkL3zixrh2Svz/ydsiKxc+pzMTCz5RvTS04m0v84=; b=PaKUb4aXhHo4F/tfglJyZjOq+s5Ni/chbWTWvtnW90WhFUxHzxKEaCrmr9uwIyucIc x6ImaJZiuBC4yfh5lzB5++ycKlLwjbGf6rTkAv/rQGDCFhfwyr3yfS8R3KebETnhCBHl Db4NuZgLXNUJZmrudXpF0M3QZbY1tX5iFvCoVPcCnanmiyBUpUAvSTV67cKJu5Z+yDQn 6c3z2RILhCbTKv/YQ17DAOzE6uIbJeyX0gGwXGH+cLt8h602P6hmiZfzy7rtMCD4Ynuu D4CM9q/7fALzrN9RoTrOg/qKQMkdZ4CGrBw8Z5bA/ciXAqt0+MhoN+BFmyB2IRthCUL2 BJW X-Gm-Message-State: AIkVDXIE5pQUscTKFumVhWk7hFREjWGQJW9d4xfWfjd35KBG4vcavQvoQtzvAJAiAGa7og== X-Received: by 10.107.131.140 with SMTP id n12mr1991580ioi.58.1481991011884; Sat, 17 Dec 2016 08:10:11 -0800 (PST) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.157.36.20 with SMTP id p20ls62482ota.26.gmail; Sat, 17 Dec 2016 08:10:11 -0800 (PST) X-Received: by 10.31.61.82 with SMTP id k79mr3396183vka.76.1481991011260; Sat, 17 Dec 2016 08:10:11 -0800 (PST) Original-Received: from mail-ua0-x244.google.com (mail-ua0-x244.google.com. [2607:f8b0:400c:c08::244]) by mx.google.com with ESMTPS id 40si3336485uak.246.2016.12.17.08.10.11 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 17 Dec 2016 08:10:11 -0800 (PST) Received-SPF: pass (google.com: domain of ville.voutilainen@gmail.com designates 2607:f8b0:400c:c08::244 as permitted sender) client-ip=2607:f8b0:400c:c08::244; Original-Received: by mail-ua0-x244.google.com with SMTP id 12so7373841uas.3 for ; Sat, 17 Dec 2016 08:10:11 -0800 (PST) X-Received: by 10.159.41.163 with SMTP id s32mr7162011uas.137.1481991010947; Sat, 17 Dec 2016 08:10:10 -0800 (PST) Original-Received: by 10.103.50.74 with HTTP; Sat, 17 Dec 2016 08:10:10 -0800 (PST) In-Reply-To: <3df7e8eb-01a0-7804-f476-504b5a25a9fe@gmail.com> 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::244 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:29874 Archived-At: On 17 December 2016 at 17:35, Jonathan M=C3=BCller wrote: > On 17.12.2016 16:29, Ville Voutilainen wrote: >> >> Such a type has just one problem: it's close to useless. It doesn't >> violate Sean's lofty principles, >> but it doesn't solve the problems it's aimed for either. > > > What are the problems it's aimed for exactly? Convenient cloning, and automatic cloning when passed by value or returned by value, including when wrapped under something else as a member. Needing to manually invoke a clone function more or less completely defeats that purpose. --=20 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 e= mail 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/CAFk2RUaY3%2BMnXkmvaC%3DLxgRA_RD_XQpFfX-HT6X3iq1= wD7ggCg%40mail.gmail.com. .