From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Paul Eggert Newsgroups: gmane.emacs.devel Subject: Re: Using the GNU GMP Library for Bignums in Emacs Date: Mon, 30 Apr 2018 00:04:12 -0700 Organization: UCLA Computer Science Department Message-ID: <63fdd138-77d3-89b9-aa69-490300f588a9@cs.ucla.edu> References: <29f933ac-a6bf-8742-66a7-0a9d6d3e5a88@disroot.org> <83bmecy6fx.fsf@gnu.org> <0d3175d8-d996-651e-b221-71978bde3a65@cs.ucla.edu> <42cbc5ab-2f02-4aa5-4b19-7b2357f91692@cs.ucla.edu> <1f58acbf-a7d8-bf4e-3d0e-a285515a22e6@cs.ucla.edu> <2549728d-8e40-b46a-009e-07cef0c24208@cs.ucla.edu> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Trace: blaine.gmane.org 1525071740 29041 195.159.176.226 (30 Apr 2018 07:02:20 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Mon, 30 Apr 2018 07:02:20 +0000 (UTC) User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 Cc: eller.helmut@gmail.com, emacs-devel@gnu.org To: rms@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Apr 30 09:02:16 2018 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fD2pC-0007Ru-S9 for ged-emacs-devel@m.gmane.org; Mon, 30 Apr 2018 09:02:14 +0200 Original-Received: from localhost ([::1]:58072 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fD2rJ-0002Oy-UA for ged-emacs-devel@m.gmane.org; Mon, 30 Apr 2018 03:04:25 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:35121) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fD2rD-0002Og-Fk for emacs-devel@gnu.org; Mon, 30 Apr 2018 03:04:20 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fD2rA-00013G-CZ for emacs-devel@gnu.org; Mon, 30 Apr 2018 03:04:19 -0400 Original-Received: from zimbra.cs.ucla.edu ([131.179.128.68]:51462) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fD2rA-000124-7L; Mon, 30 Apr 2018 03:04:16 -0400 Original-Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 67D91160085; Mon, 30 Apr 2018 00:04:14 -0700 (PDT) Original-Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id UZ7V0p3MKQsr; Mon, 30 Apr 2018 00:04:13 -0700 (PDT) Original-Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id AF60816019F; Mon, 30 Apr 2018 00:04:13 -0700 (PDT) X-Virus-Scanned: amavisd-new at zimbra.cs.ucla.edu Original-Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id hD_0TROv7QEO; Mon, 30 Apr 2018 00:04:13 -0700 (PDT) Original-Received: from [192.168.1.9] (unknown [47.154.30.119]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id 3F37E160085; Mon, 30 Apr 2018 00:04:13 -0700 (PDT) In-Reply-To: Content-Language: en-US X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 131.179.128.68 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:224975 Archived-At: Richard Stallman wrote: > I expect that %x is used only for values meant to interact > with the operating system in certain ways Hexadecimal is used for many other purposes. For example, the shell comma= nd 'git=20 log' at the top level of Emacs currently outputs a first line containing = the=20 hexadecimal string bca6c4348077c8c0b368503b16378867b6d49659 which represe= nts an=20 integer containing 160 bits, the integer width of the SHA-1 checksums use= d by=20 Git. Although Emacs cannot now process such a number directly, with bignu= ms it=20 will be able to and %x is the natural way to format such numbers.