220 29872 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 17:29:34 +0200 Lines: 23 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> 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 1481988578 10196 195.159.176.226 (17 Dec 2016 15:29:38 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sat, 17 Dec 2016 15:29:38 +0000 (UTC) To: "ISO C++ Standard - Future Proposals" Original-X-From: std-proposals+bncBC5JHI7A7ALRBX5T2XBAKGQEVFH2CQA@isocpp.org Sat Dec 17 16:29:33 2016 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-yw0-f198.google.com ([209.85.161.198]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cIGvT-0001Q1-AV for gclcip-std-proposals@m.gmane.org; Sat, 17 Dec 2016 16:29:31 +0100 Original-Received: by mail-yw0-f198.google.com with SMTP id s68sf90602443ywg.7 for ; Sat, 17 Dec 2016 07:29:36 -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=g/8ieMcDaVOZkbf1q2XA96cfBBpCK7M8LIOFfFBcxgc=; b=ACudGb6MSA1G+KNsaMcbgVnDV1ZrcfHOw5I36uHqMLiiwSZ8DNYLScwiPnPTv4PVj+ J/BWgqtDAmLLhH35gtYvq9oq5Az+R0zKdPQXt7ATfhHmbBZWZ/SUgMTtQBfq1ws0+1WR MJIZrCZIKed1gUtK1oklPcarYf4/I+SpQ0vWihnDiFd0BmGbezRKVkshd3WDjumMhiEw 7RmXu2HvYDXEilCCfGp8OJ5jgJXkxEiUyrqR47BuKAH0JowfWMQEHtU8NwXryta28H6k dUbSFncn48QcKfj+dwu9SYIuiIOlWqnxZvjkrb9WzQMWNdmbXbLMdPO/8wytM8I2B8fx Rjnw== 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=g/8ieMcDaVOZkbf1q2XA96cfBBpCK7M8LIOFfFBcxgc=; b=pJ7m8SdxJ1dmYO4u1EZd0CigmgrILJPTx9lDx4aH7hv0vdq7WUe8pOOvwxJ3zswegb ufD7IKvqfAaEbA3e8d/+56rQhVfRrM+H6IsQ4hcYY3ysY678A/cfD8UYrice4coOqThc P10/zoZds9d2ZvP1m+gVLCDl+OK5T4TxiRhz81vVW2YrhLlU+In1r9gu2KRnzSIdL0FL N1nE2tQ+qHW04yoTOLgE+X/6dhOfHkLKPPWT/8wzuhngNka/LIIHuJ4kmml8cFiyDihY o/TOt+14Ee9ZDibgK/Psz6S6jWFb+e77DJ7kOJ2WoiiqM//TzYi2rjfjjH0ysIiYuyEN kS5 X-Gm-Message-State: AKaTC021OgFAgJUwv9BElwN2cIPKjJCC01UORF2s1lePEGlUHFatqQx3J7tNB7qapkbzYQ== X-Received: by 10.129.147.70 with SMTP id k67mr2210529ywg.148.1481988575587; Sat, 17 Dec 2016 07:29:35 -0800 (PST) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.157.29.137 with SMTP id y9ls10161796otd.39.gmail; Sat, 17 Dec 2016 07:29:34 -0800 (PST) X-Received: by 10.176.71.134 with SMTP id v6mr5665246uac.174.1481988574941; Sat, 17 Dec 2016 07:29:34 -0800 (PST) Original-Received: from mail-ua0-x234.google.com (mail-ua0-x234.google.com. [2607:f8b0:400c:c08::234]) by mx.google.com with ESMTPS id g8si3320869uab.60.2016.12.17.07.29.34 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 17 Dec 2016 07:29:34 -0800 (PST) Received-SPF: pass (google.com: domain of ville.voutilainen@gmail.com designates 2607:f8b0:400c:c08::234 as permitted sender) client-ip=2607:f8b0:400c:c08::234; Original-Received: by mail-ua0-x234.google.com with SMTP id 12so65119354uas.2 for ; Sat, 17 Dec 2016 07:29:34 -0800 (PST) X-Received: by 10.176.85.24 with SMTP id t24mr7187808uaa.21.1481988574658; Sat, 17 Dec 2016 07:29:34 -0800 (PST) Original-Received: by 10.103.50.74 with HTTP; Sat, 17 Dec 2016 07:29:34 -0800 (PST) In-Reply-To: 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::234 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:29872 Archived-At: On 17 December 2016 at 16:22, Jonathan M=C3=BCller wrote: > 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. 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. --=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/CAFk2RUYmdj2HwRpP2HhY%3DxujkFP1e5LYKkg6eOGBOF_yE= -3Lcg%40mail.gmail.com. .