220 28946 <72ad1e5d-b7c0-414e-a9a1-ac56a43dd51c@isocpp.org> article Path: news.gmane.org!.POSTED!not-for-mail From: mihailnajdenov@gmail.com Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: Is World's Dumbest Pointer still on the table?!? Date: Tue, 18 Oct 2016 10:02:47 -0700 (PDT) Lines: 87 Approved: news@gmane.org Message-ID: <72ad1e5d-b7c0-414e-a9a1-ac56a43dd51c@isocpp.org> References: <8a6731f7-1c9b-482d-817e-c2374fc9ae1b@isocpp.org> <7d817482-e7c3-4724-9501-738d4c9083d7@isocpp.org> <4d9aa487-c824-490a-ae3a-ac90e2a2db3d@isocpp.org> <080a6163-4350-4246-a2d6-a3ae7f6db473@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_154_868948009.1476810167308" X-Trace: blaine.gmane.org 1476810174 14727 195.159.176.226 (18 Oct 2016 17:02:54 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 18 Oct 2016 17:02:54 +0000 (UTC) To: ISO C++ Standard - Future Proposals Original-X-From: std-proposals+bncBCUJ3A7GRAPRBONLTHAAKGQEAQ3ON6Q@isocpp.org Tue Oct 18 19:02:49 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 1bwXmq-000331-7Q for gclcip-std-proposals@m.gmane.org; Tue, 18 Oct 2016 19:02:48 +0200 Original-Received: by mail-it0-f72.google.com with SMTP id z65sf4916041itc.2 for ; Tue, 18 Oct 2016 10:02:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=isocpp-org.20150623.gappssmtp.com; s=20150623; h=date:from:to:message-id:in-reply-to:references:subject:mime-version :x-original-sender:reply-to:precedence:mailing-list:list-id :x-spam-checked-in-group:list-post:list-help:list-archive :list-subscribe:list-unsubscribe; bh=XnNFQILrb0qdp7h58S5+pQcchlejJkw2DHKbeH8oTEY=; b=PgqaAXu5lctUXRRVQ/fBKf00BcgcOD3rl635xw88XY3Zz0/brYrS3sV8SMEjFkIeQW Yr8l2Rshq4p9sws9CmihkhVmHRgojbZqAqrvLBOfM2MPB8qTCQNgB/NgDd5BqZNszfZ5 lLoO6vNFO11bxmDqw+k6Mr5DLB7wWO7Sivc4f7AIHhZ23dpUoFIoJeZMu+DsN7IKZtrw 1lM7jacQNfXQF7MShnprS85g8NP6C9LeG/XgnJqiTyZZUcZ/6LorxRmxgdvn9RFws80j R+XmDv0frmEZvLybjnavRP3vyMMiHgXZYyo0g2xeqeeDgIKzL4X4WNxLZlvTc9OPoIYK Uitg== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=date:from:to:message-id:in-reply-to:references:subject:mime-version :x-original-sender:reply-to:precedence:mailing-list:list-id :x-spam-checked-in-group:list-post:list-help:list-archive :list-subscribe:list-unsubscribe; bh=XnNFQILrb0qdp7h58S5+pQcchlejJkw2DHKbeH8oTEY=; b=h1VDnMrOEKrxOfrnew1p3gIxw+bdqp/+J4w0b5VsHG0ZCxtOUK4FbFG4Vr2G4fndxU onNVQv3LeAJsjUG/4dZSktXZ8ub0hmM3jCaU9GNHq+wlMg/9nfooZuUm6Zr79esVDMq3 lGrZl9Q9DW9O+7+Lvl1UBajKfwc5uPL57BAVr2I54nust91oYcw4L5/NDykont071W4B cTLNZmz+YflElMt/QYzvzDk63bvsxkDI1rCSTjhwrXUdkuQVe4YnRyuKBW+fB94ETA/U ghk8f7hsMfQU3XsZUH2mvtcwKmWLv2gt40KQdMaHKCLt23MWHByUUySKhd+E6FrCsjGL fWPw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:date:from:to:message-id:in-reply-to:references :subject:mime-version:x-original-sender:reply-to:precedence :mailing-list:list-id:x-spam-checked-in-group:list-post:list-help :list-archive:list-subscribe:list-unsubscribe; bh=XnNFQILrb0qdp7h58S5+pQcchlejJkw2DHKbeH8oTEY=; b=QgsmilsBjdVFegxatoufwmuejCxVTmht1rGMqlcx6WlXE04wspIBTHDtM3a/yaW5tv yA91iNu6OQ7w+ZVzsoj8gBZffVFQs6Oqh0qp/DXfUBrVONT5Zrr8ywT3f6xVaA4+//TR RbG45W8pfs4RqKvt4f3drQunEB8pilDOt/iHHSxiVlG+L+/RpeMahWs3BAPoD8aQc7ol 9igqkYsYPzsjnVibQ6gNRrcBxmS2Z13GmR2E87wUUTQB2YsGgrjgRENId4kpYPyUwsqO UM+oqx8iOcvgDT/avys/fiLJEMhobYhsGm7Ue9NfBTRw07p9fNp0345bQ2tkY1fya/jK JE8g== X-Gm-Message-State: AA6/9Rl9iWxISUzQJonk0hRiRA9I/GLwQZMRJT52dEhG3CVaxLKHZbmsgCtAl81Ky2hlOg== X-Received: by 10.36.73.38 with SMTP id z38mr601953ita.35.1476810170144; Tue, 18 Oct 2016 10:02:50 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.107.6.67 with SMTP id 64ls96280iog.53.gmail; Tue, 18 Oct 2016 10:02:48 -0700 (PDT) X-Received: by 10.36.34.20 with SMTP id o20mr770857ito.10.1476810168695; Tue, 18 Oct 2016 10:02:48 -0700 (PDT) In-Reply-To: X-Original-Sender: MihailNajdenov@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:28946 Archived-At: ------=_Part_154_868948009.1476810167308 Content-Type: multipart/alternative; boundary="----=_Part_155_103732161.1476810167308" ------=_Part_155_103732161.1476810167308 Content-Type: text/plain; charset=UTF-8 On Tuesday, October 18, 2016 at 7:43:11 PM UTC+3, Ville Voutilainen wrote: > > .. > > I don't know how many times I need to point out that reset() on a > unique_ptr might have no > effect on the object lifetime, depending on the deleter. > cppreference.com: std::unique_ptr is a smart pointer that retains sole ownership of an object > through a pointer and destroys that object when the unique_ptr goes out of > scope. No two unique_ptr instances can manage the same object. > > The object is destroyed and its memory deallocated when either of the > following happens: > the managing unique_ptr object is destroyed > the managing unique_ptr object is assigned another pointer via operator= > or reset(). > > The object is destroyed using a potentially user-supplied deleter by > calling Deleter(ptr). The deleter calls the destructor of the object and > dispenses the memory. > All else is a naughty corner case. -- 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/72ad1e5d-b7c0-414e-a9a1-ac56a43dd51c%40isocpp.org. ------=_Part_155_103732161.1476810167308 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

On Tuesday, October 18, 2016 at 7:43:11 PM UTC+3, Vill= e Voutilainen wrote:
..

I don't know how many times I need to point out that reset() on a
unique_ptr might have no
effect on the object lifetime, depending on the deleter.

=C2=A0cppreference.com:

=
std::unique_ptr is a smart pointer = that retains sole ownership of an object through a pointer and destroys tha= t object when the unique_ptr goes out of scope. No two unique_ptr instances= can manage the same object.

The object is destro= yed and its memory deallocated when either of the following happens:
= =C2=A0the managing unique_ptr object is destroyed
=C2=A0the managing un= ique_ptr object is assigned another pointer via operator=3D or reset().

The object is destroyed using a potentially user-sup= plied deleter by calling Deleter(ptr). The deleter calls the destructor of = the object and dispenses the memory.

=
All else is a naughty corner case.=C2=A0

--
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To unsubscribe from this group and stop receiving emails from it, send an e= mail to std-proposa= ls+unsubscribe@isocpp.org.
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To view this discussion on the web visit https://groups.google.= com/a/isocpp.org/d/msgid/std-proposals/72ad1e5d-b7c0-414e-a9a1-ac56a43dd51c= %40isocpp.org.
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