220 17568 article Path: news.gmane.org!not-for-mail From: lie4pan1 Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Thoughts/idea about N4401 vs N4475 (regarding raw ptrs and mutables) Date: Wed, 29 Apr 2015 02:56:20 -0700 (PDT) Lines: 61 Approved: news@gmane.org Message-ID: References: <5c67669c-7812-43a5-a8fd-21dcc6f8894a@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_164_664508031.1430301380612" X-Trace: ger.gmane.org 1430301391 5441 80.91.229.3 (29 Apr 2015 09:56:31 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 29 Apr 2015 09:56:31 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCEP3ZH7SICRBROVQKVAKGQEQY3YVBI@isocpp.org Wed Apr 29 11:56:30 2015 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-ie0-f198.google.com ([209.85.223.198]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1YnOjE-0002sP-1h for gclcip-std-proposals@m.gmane.org; Wed, 29 Apr 2015 11:56:28 +0200 Original-Received: by iepn2 with SMTP id n2sf69969946iep.2 for ; Wed, 29 Apr 2015 02:56:22 -0700 (PDT) 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 :content-type:x-original-sender:reply-to:precedence:mailing-list :list-id:list-post:list-help:list-archive:list-subscribe :list-unsubscribe; bh=3e64rC+W3dJ8oiKpQ4MddAwnq7ZbGM0EgRXfa2gEWAw=; b=uWkm17J//c9Tal204YSwkNP7A75xsL3TU8ALRd3Gncavt1G9ASz8E1yH6L/aqaulCU m4c15A/4wffBRLitL73YffJauozK+Zdl9k3nZq/DSafKsgfrN3cBGPCi/n1HVDtR4Ou6 uzoZSMwSkGeJ8ZnVtKLhgtenptSuF1g4+xh6IR5iMVhaT4ozxq44cYDFgrrkbWrkL7I5 cIlBa89nshwAypBzjsHur9jvibj/XGcmDUvJOQQKr2IC8Ta2HeFHVFtvklKBtlGFsEg8 ZW5PN3EURY6ApwqEos71wHIyfWc06KaN8fJKlFx6sg/8wLpdQUFdSo9R/osdf65S+nlM ThDA== 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:content-type:x-original-sender:reply-to :precedence:mailing-list:list-id:list-post:list-help:list-archive :list-subscribe:list-unsubscribe; bh=3e64rC+W3dJ8oiKpQ4MddAwnq7ZbGM0EgRXfa2gEWAw=; b=IeeuXTqWNFkIZt7YqS0b97Q8QiMkKqct07Gsft3fLHZ/yixcw5DDMqDVxejOays/21 1xRPnnVuczZlrRJ3XtQBDz9KNkSJD5FUr8TUZgZvSalSdPDJJhHheTWXLk/uf7jVguGy OMgMZzKCjvZqHntyyWBR1bbBIcPYMC0ygsX+BMh70ZTdQuAzza8td7yUrP4APDnpz5qu 5GPMEYShdRojTUSnpZyHlv131MYs69e+rfZr4K9FeMjGVqkjLH21MaiTb0w/VUQW6dax ZIDx3XWqQqRFV3v+CukgrMiwc5N1IEwbOv9UzWBFSHO7L5rOq5/P12dat2DHRHMTeLNB f4fw== X-Gm-Message-State: ALoCoQkToYTiZgb4AnwSFBN946ksbmmMxiVOL8WmRFIYUtMVxLbFPEgbube8kiYZ0IpZlKvC4nNT X-Received: by 10.43.65.1 with SMTP id xk1mr3000099icb.32.1430301382085; Wed, 29 Apr 2015 02:56:22 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.140.92.54 with SMTP id a51ls679612qge.83.gmail; Wed, 29 Apr 2015 02:56:21 -0700 (PDT) X-Received: by 10.140.31.196 with SMTP id f62mr269365qgf.30.1430301381387; Wed, 29 Apr 2015 02:56:21 -0700 (PDT) In-Reply-To: <5c67669c-7812-43a5-a8fd-21dcc6f8894a@isocpp.org> X-Original-Sender: lie4pan1@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:17568 Archived-At: ------=_Part_164_664508031.1430301380612 Content-Type: multipart/alternative; boundary="----=_Part_165_1471512617.1430301380613" ------=_Part_165_1471512617.1430301380613 Content-Type: text/plain; charset=UTF-8 After some thoughts I think any '__cookie__' non-mutable members should suppress generating such said defaulted operators, so this mechanism can be used to help with some non-pointer primitive handle types that also require extra work in said operations. The rules can now be simper: non-'__cookie__': included and used in said defaulted operators '__cookie__' non-mutable: suppressing said defaulted operators (or even suppressing defaulted ctor and/or dtor as well???) '__cookie__' mutable: excluded and ignored in said defaulted operators What do yo think? -- --- 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. Visit this group at http://groups.google.com/a/isocpp.org/group/std-proposals/. ------=_Part_165_1471512617.1430301380613 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
After some thoughts I think any '__cookie__' non-mutable m= embers should suppress generating such said defaulted operators, so this me= chanism can be used to help with some non-pointer primitive handle types th= at also require extra work in said operations. The rules can now be simper:=

= non-'__cookie__': included and used in said defaulted operators
'__cooki= e__' non-mutable: suppressing said defaulted operators (or even suppressing= defaulted ctor and/or dtor as well???)
'__cookie__' mutable: excluded a= nd ignored in said defaulted operators

What do yo think?
<= br>

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