220 36358 <4605434.q3o9RnjlYE@tjmaciei-mobl1> article
Path: news.gmane.org!.POSTED!not-for-mail
From: Thiago Macieira <thiago@macieira.org>
Newsgroups: gmane.comp.lang.c++.isocpp.proposals
Subject: Re: Default assignment operators for std::pair and std::tuple
Date: Tue, 26 Dec 2017 16:11:09 -0200
Lines: 25
Approved: news@gmane.org
Message-ID: <4605434.q3o9RnjlYE@tjmaciei-mobl1>
References: <ceb89ead-99c9-41fc-a40e-876eac97a6f1@isocpp.org> <CAFk2RUab3JK=U0vrxZ6d0r3vaY=-64usQyPHCOf9=V1v-T=XTA@mail.gmail.com> <4110e47f-a021-4ccc-9e03-53e4ebdb8c21@isocpp.org>
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 1514311762 28311 195.159.176.226 (26 Dec 2017 18:09:22 GMT)
X-Complaints-To: usenet@blaine.gmane.org
NNTP-Posting-Date: Tue, 26 Dec 2017 18:09:22 +0000 (UTC)
To: std-proposals@isocpp.org
Original-X-From: std-proposals+bncBCB4TK757YBRBRVBRLJAKGQETKD4J4Q@isocpp.org Tue Dec 26 19:09:18 2017
Return-path: <std-proposals+bncBCB4TK757YBRBRVBRLJAKGQETKD4J4Q@isocpp.org>
Envelope-to: gclcip-std-proposals@m.gmane.org
Original-Received: from mail-qk0-f200.google.com ([209.85.220.200])
	by blaine.gmane.org with esmtp (Exim 4.84_2)
	(envelope-from <std-proposals+bncBCB4TK757YBRBRVBRLJAKGQETKD4J4Q@isocpp.org>)
	id 1eTtfB-0006wg-KW
	for gclcip-std-proposals@m.gmane.org; Tue, 26 Dec 2017 19:09:17 +0100
Original-Received: by mail-qk0-f200.google.com with SMTP id z65sf2403883qkb.22
        for <gclcip-std-proposals@m.gmane.org>; Tue, 26 Dec 2017 10:11:20 -0800 (PST)
ARC-Seal: i=2; a=rsa-sha256; t=1514311880; cv=pass;
        d=google.com; s=arc-20160816;
        b=nKFz0c5CqIEbWOW3usc9OED/wTeiRcUBMBdrVDhdqZCHt76bxDc53O9VtjKK2QEDRZ
         S1xyQ14RzxeGioRp/tGqgqJhKuItaIyfLvqixC/PBr31gt9OtRj8nXIiMCKlgfajtqfP
         A4xAOHGvLg0kHcaxoEwnqewhO4kpEdKiHUlnue5Xs3T51T1jGL4Tnvpd4noJY8CGLBb+
         AcN2wZGJJJ6BSVMXh0sUlDTsoKGuDlMdje7I3dRXqwMjI0tpgQ/bEdfLF4HyqcgzBv1/
         G3wDUwhgaZhIA+NSgCjj2vXg2p94a0qpBfRp+ElbZ3VPBj6H38/bnnv8YxaA64pZEXwX
         aJEw==
ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816;
        h=list-unsubscribe:list-subscribe:list-archive:list-help:list-post
         :list-id:mailing-list:precedence:reply-to:content-transfer-encoding
         :mime-version:references:in-reply-to:message-id:date:subject:to:from
         :arc-authentication-results:arc-message-signature:dkim-signature
         :arc-authentication-results;
        bh=2LFwJee/u7zB4spYZQLRltqYmlmG2aNebm1WKSUx24M=;
        b=TLJB71kHgps5bUKqGjnUdc5VQyDJOf3sTWdggKlzSTPuFru1sYnC09a6K5lyBomtJ3
         WG/JUeIOjSLsATk3Hs6KoFyRtpiiccAphabqNqxkpFN0IHoguPASt7+nYL8V/bZ5Gr1d
         jPThrKyzR+X2An0x/10WL6WLVVCXpA9U3v0okju2H0no3h/gIQH/VF8x4qKCntwGg349
         DP+w1L5bvmu8C2MmdQb/zSBZaKTyMWKKUA7/8n9p7YiY1zCY9c4f/f4GdTbs6xwd4GIF
         5sgdeo5Hzq8gDTT10HJbnDHolie/mPyOCuWCqF1PW6l5NeRoWZJgZVH/EwbEIVCZ9inq
         uybQ==
ARC-Authentication-Results: i=2; mx.google.com;
       spf=pass (google.com: domain of thiago@macieira.org designates 209.222.10.136 as permitted sender) smtp.mailfrom=thiago@macieira.org
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=isocpp-org.20150623.gappssmtp.com; s=20150623;
        h=from:to:subject:date:message-id:in-reply-to:references:mime-version
         :content-transfer-encoding:x-original-sender
         :x-original-authentication-results:reply-to:precedence:mailing-list
         :list-id:list-post:list-help:list-archive:list-subscribe
         :list-unsubscribe;
        bh=2LFwJee/u7zB4spYZQLRltqYmlmG2aNebm1WKSUx24M=;
        b=ItGGZUjR7xiMSjbmkmOr+z2K3vvePF4qb6BFn7bb04dPv0PFZTnuwFlyCDjnKJWqrj
         j9op1e4vauEc0pruzO8To7uIBYnVRNVfYgLDZ+Plbh64c4hndQvu+b12FExmt3MxF1xd
         bpcZUqkqfKu6QN2MBKO2hhSQsSLKQp+FcICzier26kL6AnzkXkjAOB04FHRaMEjD8iBf
         G9JJJ5B6ozjtE5gdXUUqLuQpXVG2dn4MuYkONY0ixT6oDUxi34sdHVeB3LiGQMHOPEtJ
         32py9x+c5VXIqY2vy0hgMz5vUlOCdzn8D+JemJKMXbcJUL9puVnf+A5aimzvKmnfyaLz
         bw8A==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20161025;
        h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to
         :references:mime-version: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=2LFwJee/u7zB4spYZQLRltqYmlmG2aNebm1WKSUx24M=;
        b=p4bhoSJjqQt7rILjtkWZ5LkjakGWuYHhns1k9UBp9OqLTJ2ZF4fI06LLBa+G6qnoGv
         v8gCxbYP85k997mgEz9YNP61Mx8PQUfmq8JiKHqWoMjn3uhcoD5ILKXCb7swnqBobAmA
         B0gvlELPHzAriEsEIFlJfe3erQmR7F3B7VPqbsCCOcFRpvnZpXmCSdjhcuS324GAtHH9
         0Y5+03lUhh4MboqRFb3FYCzzcaIGTSodzFynE21rTktN12dWnT2z2qo+/WPQXBEdKenH
         3cDKyGio2sCOy6vpFhgCm+NbMZxIY5PowSHjVi5nqqCZgLU9mrtr6xwLBDGOcBxweiYu
         svT 
X-Gm-Message-State: AKGB3mIZDmhqcO/YMFSQdIHG2SDh0fgQWVoN6L3gLiUfrs7T04hXYKx0
	UWP/eZ/nb3rQEpVtnKlYZB4Aog==
X-Google-Smtp-Source: ACJfBos0AX8QGCyLf+nzD1KPajf9Eik2QAmVfMplX8T+Hr+Hqt73BT1cx5T3oWa631G35ciSYeRHbQ==
X-Received: by 10.200.27.49 with SMTP id y46mr18222878qtj.42.1514311879971;
        Tue, 26 Dec 2017 10:11:19 -0800 (PST)
X-BeenThere: std-proposals@isocpp.org
Original-Received: by 10.55.101.196 with SMTP id z187ls3586110qkb.11.gmail; Tue, 26 Dec
 2017 10:11:18 -0800 (PST)
X-Received: by 10.200.39.104 with SMTP id h37mr34953164qth.114.1514311878788;
        Tue, 26 Dec 2017 10:11:18 -0800 (PST)
ARC-Seal: i=1; a=rsa-sha256; t=1514311878; cv=none;
        d=google.com; s=arc-20160816;
        b=oh6mMhb1D8yoErIiBoO7JCO9/0F5mj4GhH18ZrD3rV25kgRDdX/J9mDuL+p6L4z0fB
         CmZJ5og7tT9pQ/BtR2YUKllHhLGIYzSkR1TsicAthb2E7JDUQkGWUhI9o8P/IqNydNYL
         NCJLahkwYtykMkNo1RX6zt9ud/NU4nzE9F4EtaiGarSpvo7uSmBzxWIQz9Zg2igTad/+
         zECbJkDQihANyREGZ6Npd7RyEYETXUzfr9lS9oBesbkCPVN+TAQEX/i25K3gTRfdvqUr
         Ir0feIQoyLDF5voO/9X1xJKPQqyOgL/ES2WFcATKizTAtFUODNkMZiWJygd7nl5lAULQ
         QedQ==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816;
        h=content-transfer-encoding:mime-version:references:in-reply-to
         :message-id:date:subject:to:from:arc-authentication-results;
        bh=801uCw68FBZZuSy5NhsNo7VroDqSgGnMFxTMArBd+7M=;
        b=u9q5r0e/cxSYTnhizPDcJzS/nVINNhYyS67+hOOP+JE2peBxH/QgpD19IdpCcFIikg
         +Y2QlWiRgkXQrv002Ysko4tY3bpDsOt0dtTO0WOKvBxhGtQ0qSNYjOWztvndz9PhnK3A
         3xbBrFi/eV/NVr4WP+OnYqqOX+tIAShwlzEJuX7ArmN+PbobcgeahOrG6i0xldlRxew6
         zp38+U7lD6AR7aBA5xvU+IM4V/7rSdJcn+BCqpyQI/w0F3Etx4FIMeK002NJgtsmEbBV
         sUif31iGf1DpvTL8EQI5blYvm4dv/3R+lMjMqbVsJOFsva7+ywH3RXkXZFOKWWsb6iNt
         ooXg==
ARC-Authentication-Results: i=1; mx.google.com;
       spf=pass (google.com: domain of thiago@macieira.org designates 209.222.10.136 as permitted sender) smtp.mailfrom=thiago@macieira.org
Original-Received: from smtp.macieira.info (arvernien.macieira.info. [209.222.10.136])
        by mx.google.com with ESMTPS id u1si2751793qkg.415.2017.12.26.10.11.18
        for <std-proposals@isocpp.org>
        (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);
        Tue, 26 Dec 2017 10:11:18 -0800 (PST)
Received-SPF: pass (google.com: domain of thiago@macieira.org designates 209.222.10.136 as permitted sender) client-ip=209.222.10.136;
Original-Received: from tjmaciei-mobl1.localnet (unknown [187.75.61.62])
	by smtp.macieira.info (Postfix) with ESMTPSA id A5608538A
	for <std-proposals@isocpp.org>; Tue, 26 Dec 2017 10:11:17 -0800 (PST)
In-Reply-To: <4110e47f-a021-4ccc-9e03-53e4ebdb8c21@isocpp.org>
X-Original-Sender: thiago@macieira.org
X-Original-Authentication-Results: mx.google.com;       spf=pass (google.com:
 domain of thiago@macieira.org designates 209.222.10.136 as permitted sender) smtp.mailfrom=thiago@macieira.org
Precedence: list
Mailing-list: list std-proposals@isocpp.org; contact std-proposals+owners@isocpp.org
List-ID: <std-proposals.isocpp.org>
X-Spam-Checked-In-Group: std-proposals@isocpp.org
X-Google-Group-Id: 399137483710
List-Post: <https://groups.google.com/a/isocpp.org/group/std-proposals/post>, <mailto:std-proposals@isocpp.org>
List-Help: <https://support.google.com/a/isocpp.org/bin/topic.py?topic=25838>, <mailto:std-proposals+help@isocpp.org>
List-Archive: <https://groups.google.com/a/isocpp.org/group/std-proposals/>
List-Subscribe: <https://groups.google.com/a/isocpp.org/group/std-proposals/subscribe>,
 <mailto:std-proposals+subscribe@isocpp.org>
List-Unsubscribe: <mailto:googlegroups-manage+399137483710+unsubscribe@googlegroups.com>,
 <https://groups.google.com/a/isocpp.org/group/std-proposals/subscribe>
Xref: news.gmane.org gmane.comp.lang.c++.isocpp.proposals:36358
Archived-At: <http://permalink.gmane.org/gmane.comp.lang.c++.isocpp.proposals/36358>

On ter=C3=A7a-feira, 26 de dezembro de 2017 13:02:05 -02 mrpi via ISO C++ S=
tandard=20
- Future Proposals wrote:
> Sorry, I might not be understanding it correctly, but in what way would i=
t
> be an ABI break, given that reference types are not trivially copyable
> anyways?

Changing a type from trivially copyable to not, or vice-versa, is the ABI=
=20
change.

--=20
Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org
   Software Architect - Intel Open Source Technology Center

--=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/4605434.q3o9RnjlYE%40tjmaciei-mobl1.

.
