220 26472 <5867921.AUuKeNNjJU@tjmaciei-mobl1> article Path: news.gmane.org!not-for-mail From: Thiago Macieira Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: iswalpha and locales Date: Tue, 28 Jun 2016 10:20:23 -0700 Lines: 51 Approved: news@gmane.org Message-ID: <5867921.AUuKeNNjJU@tjmaciei-mobl1> References: <5057e854-b2ea-4c39-81c7-367bc3e54080@isocpp.org> <5687343.G23lk5P4Xh@tjmaciei-mobl1> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1467134452 4454 80.91.229.3 (28 Jun 2016 17:20:52 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 28 Jun 2016 17:20:52 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCB4TK757YBRBX7DZK5QKGQEJY7XH5Y@isocpp.org Tue Jun 28 19:20:35 2016 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-lf0-f72.google.com ([209.85.215.72]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1bHwgd-0002c1-EK for gclcip-std-proposals@m.gmane.org; Tue, 28 Jun 2016 19:20:35 +0200 Original-Received: by mail-lf0-f72.google.com with SMTP id a2sf17853258lfe.0 for ; Tue, 28 Jun 2016 10:20:34 -0700 (PDT) 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: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=9igqhCFBg7yw+/UEI2NbasOCSBzSISAEFQSmzINSt1c=; b=V+w4iHLj9DkORMDw1nUNN1FL0PJm3vt7Wd5daAsdkFbLEpLlUwdQ8/MamQuQDhXobX F8Ta9PkdF2du1Sajd6sXuzuyndb9qhms9oTPKtsB36Jv/Tl5IEavylUD07cS+KIf2x4e NZFXP7UV/GrKXh7ygQtwtjlWdqRvs3WwcgUxuGAcOWqE+04fguXiSq4AVy89Wx8+DNgr eCIh5QM27XO7gF46y4v7B0bub2PDdNp5fE3rjVkyf4VL9E/0Th3/WAGJp1myM6XMikFR luCFW+FwLJdbULIwqCfG5L1Qq+nTea3qR6DAc8XVmaJk+cEaSA9i/9HODa6BTTjW3Azh 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: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=9igqhCFBg7yw+/UEI2NbasOCSBzSISAEFQSmzINSt1c=; b=fLAlCs1k2FNAgfuxhPXrGaJ6ecxUd8WRCECgQHqSLx6xfzbwqFmn8JZVvOTgl4cdVk 9fYM1aPFCMiCsb0Btv9xqvx0TWBoa7B+Pmob5Viny/H4fnz6CjT9ml/cmVKFDYDS+c11 RpCDcDvM7xR9ecNjD80WzDGtvxsjbkUbrQEbvl7iZy7Wr36J0nOpiqD/tEsJ+aBXFRk5 kKaEnp9Av0lI+vtmwfhdiaW11ih0A3uSR6/PuxtMnMVQLk5/OmIvruoiHTOgOGggzEuA kIv3OitGDTrZFKDWeYg+FYHOVi5LGpf6805aikApb9lY8QtzSiveQCfKLW1d7YWsXnkZ X-Gm-Message-State: ALyK8tIVAjq72MaGhi+JFRqvn83lVJrLv9MqhodMVPGIZcNF1aNk8BI5QKZkPMvyacREiQ== X-Received: by 10.194.168.169 with SMTP id zx9mr924834wjb.2.1467134434547; Tue, 28 Jun 2016 10:20:34 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.28.38.132 with SMTP id m126ls196980wmm.48.canary; Tue, 28 Jun 2016 10:20:31 -0700 (PDT) X-Received: by 10.194.158.138 with SMTP id wu10mr3930684wjb.84.1467134431260; Tue, 28 Jun 2016 10:20:31 -0700 (PDT) Original-Received: from gondolin.macieira.info (gondolin.macieira.info. [78.47.120.188]) by mx.google.com with ESMTP id a139si23506224wmd.56.2016.06.28.10.20.31 for ; Tue, 28 Jun 2016 10:20:31 -0700 (PDT) Received-SPF: pass (google.com: domain of thiago@macieira.org designates 78.47.120.188 as permitted sender) client-ip=78.47.120.188; Original-Received: from tjmaciei-mobl1.localnet (jfdmzpr03-ext.jf.intel.com [134.134.139.72]) by gondolin.macieira.info (Postfix) with ESMTPSA id C605111BCDE for ; Tue, 28 Jun 2016 10:20:30 -0700 (PDT) User-Agent: KMail/5.2.2 (Linux/4.6.2-1-default; KDE/5.23.0; 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 78.47.120.188 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:26472 Archived-At: On ter=C3=A7a-feira, 28 de junho de 2016 12:49:57 PDT Matthew Woehlke wrote= : > > That is included. Executable ROM (i.e., .text sections) will be shared > > across multiple invocations, even of different programs, if they use th= e > > same sections of ROM. >=20 > Are we talking about the same thing? I'm talking about the tables being > embedded as inline static data in the .exe (or equivalent), *not* a > shared library.=20 I wasn't considering that. I thought you meant data in a library of some so= rt. > I don't think that can be shared, as that would imply a) > that the data exactly starts and ends at page boundaries, and b) the OS > can share memory between different .exe's when they happen to have pages > with identical content. (Do OS's actually do that?) Starting data at page boundaries is quite easy. Sharing pages even if they don't come from the same file is possible (look = up=20 the Linux "kernel samepage merging" feature), but it's more efficient if th= ey=20 come from the same file. Hence ICU having a file with the data. > Possible clarification: by "ROM", above, I'm talking about e.g. the > .rodata section. Not "ROM" in the hardware sense. Off-topic: Strictly speaking, you're talking about the ELF read-only segment(s) (not= =20 sections). There are multiple sections in those segments: at the very least= =20 ..text, in addition to .rodata. --=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/5867921.AUuKeNNjJU%40tjmaciei-mobl1. .