220 24847 <2751678.5M8lMMefao@tjmaciei-mobl4> article Path: news.gmane.org!not-for-mail From: Thiago Macieira Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: Any purposes for $, @, or ` ? Date: Mon, 29 Feb 2016 11:28:32 -0800 Lines: 35 Approved: news@gmane.org Message-ID: <2751678.5M8lMMefao@tjmaciei-mobl4> References: <94de1ee2-0821-418e-a7b1-87b61ea438eb@isocpp.org> <85695419.D79dMvzuEz@tjmaciei-mobl4> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Trace: ger.gmane.org 1456774134 27107 80.91.229.3 (29 Feb 2016 19:28:54 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 29 Feb 2016 19:28:54 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCB4TK757YBRBZNX2K3AKGQEPELOUOA@isocpp.org Mon Feb 29 20:28:45 2016 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-io0-f200.google.com ([209.85.223.200]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1aaTUl-0004uV-RI for gclcip-std-proposals@m.gmane.org; Mon, 29 Feb 2016 20:28:40 +0100 Original-Received: by mail-io0-f200.google.com with SMTP id t64sf289207855ioe.0 for ; Mon, 29 Feb 2016 11:28:39 -0800 (PST) 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:user-agent:in-reply-to:references :mime-version: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=rEGONKzEKOKs/9VCeu9q0djWEIS70XUjZrROb5vMR3I=; b=VyS00MLStcsC8oA2/nEUqvvRf/j09pYOLk0XJyMr8GVP/NI81/viZlKFRFLoM1CiyU IcJXr3Ezmwt+/6Rw4cMBHzdQ80ROEZJMqYRtl2lZFlc4LQfMLf8gyy05y5zDJXrlHP9Y Ln703vvUS65Iy4xF/FkmlsdA5pZBrvM9moSvz7/ARx3AO3uu4/IbNP0q1w+XaK6RB6J1 iWuonWRvc8KjkST4CE7/cdnnLQ8IxRgNPqtlR0ad7X7tdBI5jd93qTCxTDt6vUOohu1b tXrOguBotIh1T0VMdR+5yLvt5VAu4R9/BKZJbXXWeZTHrvjja5qqBt6El+di3C9B1MMa r/Uw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:subject:date:message-id:user-agent :in-reply-to:references:mime-version: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=rEGONKzEKOKs/9VCeu9q0djWEIS70XUjZrROb5vMR3I=; b=HwDKOyhreJVlMRTBazRAYSfuocDmzlut4gvEfaLHq58Grcr7ZkEJHgmbMlIt5smiu5 t1lNl+n11ksemOgy7XDpseiqoXy02ebxvLv6MheabEsDYzQBWXjde5WF7rABHjQgGwa4 jJdRnJ9A5zMzA/hLnrxHVBWxZivaplImTZPX2pnnx0RMFMSU79wpzcFed5RDA2QRriA4 rgtINcxeZlqRR2SzppRMxTvgXFaL8OInAynUMuTe0ReuOS3v9RXX0mO1oufcjYxC9cXK pay4XcXsaNRfa6axYStsNMN45GCxEzUJlJ7xl1LnoLDKtlkB3aas9hkT+Dq3M1fprkAq SKOA== X-Gm-Message-State: AD7BkJIO2u4N+r/qh3TYygMvFVQpNHtMfw5U47ESr6sJ9QUg0AOm/X1chL6oKBFyJddvUQ== X-Received: by 10.182.120.106 with SMTP id lb10mr14487847obb.24.1456774118845; Mon, 29 Feb 2016 11:28:38 -0800 (PST) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.140.21.47 with SMTP id 44ls2429144qgk.90.gmail; Mon, 29 Feb 2016 11:28:36 -0800 (PST) X-Received: by 10.55.80.86 with SMTP id e83mr21383197qkb.91.1456774116743; Mon, 29 Feb 2016 11:28:36 -0800 (PST) Original-Received: from gondolin.macieira.info (gondolin.macieira.info. [2a01:4f8:d13:f81:21c:14ff:fe01:12a3]) by mx.google.com with ESMTP id z22si15222323qhz.17.2016.02.29.11.28.35 for ; Mon, 29 Feb 2016 11:28:35 -0800 (PST) Received-SPF: pass (google.com: domain of thiago@macieira.org designates 2a01:4f8:d13:f81:21c:14ff:fe01:12a3 as permitted sender) client-ip=2a01:4f8:d13:f81:21c:14ff:fe01:12a3; Original-Received: from tjmaciei-mobl4.localnet (jfdmzpr06-ext.jf.intel.com [134.134.137.75]) by gondolin.macieira.info (Postfix) with ESMTPSA id ACF8E11A423 for ; Mon, 29 Feb 2016 11:28:34 -0800 (PST) User-Agent: KMail/5.1.2 (Linux/4.4.2-1-default; KDE/5.19.0; x86_64; ; ) In-Reply-To: X-Original-Sender: thiago@macieira.org X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of thiago@macieira.org designates 2a01:4f8:d13:f81:21c:14ff:fe01:12a3 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: X-Spam-Checked-In-Group: std-proposals@isocpp.org 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:24847 Archived-At: On segunda-feira, 29 de fevereiro de 2016 10:49:02 PST Jean-Marc Bourguet wrote: > > "The fundamental storage unit in the C ++ memory model is the byte." > > "The memory available to a C ++ program consists of one or more sequences > > of > > contiguous bytes. Every byte has a unique address." > > > > That last sentence means *exactly* that memory must be byte-addressable. > > I don't see how there can be any confusion. > > I wonder if you have missed the point of my last paragraph. If you haven't > I fear that I'm missing the point of your answer. I think we're just looking at it from different angles. C and C++ require that memory be byte addressable, per the definitions I quoted. On architectures that can't do that, like you and Bo said, pointer addresses in C and C++ may need to be wider than the actual hardware pointer. That meets the requirement from the language. But from all intents and purposes, the consequence is that all architectures are byte-addressable. -- Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org Software Architect - Intel Open Source Technology Center -- 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/2751678.5M8lMMefao%40tjmaciei-mobl4. .