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: bignum branch Date: Wed, 18 Jul 2018 11:34:09 -0700 Organization: UCLA Computer Science Department Message-ID: References: <87o9fbbw1t.fsf@tromey.com> <86in5jdj49.fsf@gmail.com> <83wotxaiwi.fsf@gnu.org> <86k1pxmvmx.fsf@gmail.com> <83efg4a6ie.fsf@gnu.org> <41221ccf-0c1a-c7e6-2204-e3f9056f7eb5@cs.ucla.edu> <838t6c9wx5.fsf@gnu.org> <53ba128d-7888-e15a-c4a2-1d7a65f51345@cs.ucla.edu> <83wotu7fcj.fsf@gnu.org> <83k1pt7q1e.fsf@gnu.org> <83h8kx7oeu.fsf@gnu.org> <83fu0h7nr6.fsf@gnu.org> <83d0vl7kg2.fsf@gnu.org> <4bc2a6ba-bc73-c4a9-f7a6-20303955bc7f@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: 7bit X-Trace: blaine.gmane.org 1531938778 20284 195.159.176.226 (18 Jul 2018 18:32:58 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 18 Jul 2018 18:32:58 +0000 (UTC) User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 To: Andy Moreton , emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed Jul 18 20:32:54 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 1ffrFs-00057E-2W for ged-emacs-devel@m.gmane.org; Wed, 18 Jul 2018 20:32:52 +0200 Original-Received: from localhost ([::1]:37908 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ffrHy-0004kW-Sz for ged-emacs-devel@m.gmane.org; Wed, 18 Jul 2018 14:35:02 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:33532) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ffrHD-0004kP-8X for emacs-devel@gnu.org; Wed, 18 Jul 2018 14:34:15 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ffrHA-00030m-6c for emacs-devel@gnu.org; Wed, 18 Jul 2018 14:34:15 -0400 Original-Received: from zimbra.cs.ucla.edu ([131.179.128.68]:37602) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ffrH9-0002zw-Sx for emacs-devel@gnu.org; Wed, 18 Jul 2018 14:34:12 -0400 Original-Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 89F071605EB; Wed, 18 Jul 2018 11:34:10 -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 ejN42TbMvWc6; Wed, 18 Jul 2018 11:34:09 -0700 (PDT) Original-Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id D4A85160648; Wed, 18 Jul 2018 11:34:09 -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 82khwGf_iuCA; Wed, 18 Jul 2018 11:34:09 -0700 (PDT) Original-Received: from [192.168.1.9] (unknown [47.154.30.119]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id 91DEC1605EB; Wed, 18 Jul 2018 11:34:09 -0700 (PDT) Openpgp: preference=signencrypt Autocrypt: addr=eggert@cs.ucla.edu; prefer-encrypt=mutual; keydata= xsFNBEyAcmQBEADAAyH2xoTu7ppG5D3a8FMZEon74dCvc4+q1XA2J2tBy2pwaTqfhpxxdGA9 Jj50UJ3PD4bSUEgN8tLZ0san47l5XTAFLi2456ciSl5m8sKaHlGdt9XmAAtmXqeZVIYX/UFS 96fDzf4xhEmm/y7LbYEPQdUdxu47xA5KhTYp5bltF3WYDz1Ygd7gx07Auwp7iw7eNvnoDTAl KAl8KYDZzbDNCQGEbpY3efZIvPdeI+FWQN4W+kghy+P6au6PrIIhYraeua7XDdb2LS1en3Ss mE3QjqfRqI/A2ue8JMwsvXe/WK38Ezs6x74iTaqI3AFH6ilAhDqpMnd/msSESNFt76DiO1ZK QMr9amVPknjfPmJISqdhgB1DlEdw34sROf6V8mZw0xfqT6PKE46LcFefzs0kbg4GORf8vjG2 Sf1tk5eU8MBiyN/bZ03bKNjNYMpODDQQwuP84kYLkX2wBxxMAhBxwbDVZudzxDZJ1C2VXujC OJVxq2kljBM9ETYuUGqd75AW2LXrLw6+MuIsHFAYAgRr7+KcwDgBAfwhPBYX34nSSiHlmLC+ KaHLeCLF5ZI2vKm3HEeCTtlOg7xZEONgwzL+fdKo+D6SoC8RRxJKs8a3sVfI4t6CnrQzvJbB n6gxdgCu5i29J1QCYrCYvql2UyFPAK+do99/1jOXT4m2836j1wARAQABzSBQYXVsIEVnZ2Vy dCA8ZWdnZXJ0QGNzLnVjbGEuZWR1PsLBfgQTAQIAKAUCTIByZAIbAwUJEswDAAYLCQgHAwIG FQgCCQoLBBYCAwECH 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:227554 Archived-At: Andy Moreton wrote: > The size of a GMP limb is irrelevant - it is the API for getting native > integer types into mpz_t values that cannot handle interger types wider > than long. > > Wider mp_limb_t types improve efficiency, but do nothing about > correctness on LLP64 systems. You're right, of course. It would be helpful to have that two-line change anyway, for performance reasons on 32-bit systems; however, Eli seems to be thinking that we shouldn't worry much about performance on these obsolescent systems and I'm becoming more inclined to agree.