From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Ted Zlatanov Newsgroups: gmane.emacs.devel Subject: Re: Pushing the `gnus-range-*' functions down into the C layer Date: Tue, 14 Sep 2010 10:52:22 -0500 Organization: =?utf-8?B?0KLQtdC+0LTQvtGAINCX0LvQsNGC0LDQvdC+0LI=?= @ Cienfuegos Message-ID: <87hbhscog9.fsf@lifelogs.com> References: <8739ti68sz.fsf@lifelogs.com> <87pqwm1dsl.fsf@uwakimon.sk.tsukuba.ac.jp> <87iq2d4sd5.fsf@lifelogs.com> <8762yd4r7j.fsf@lifelogs.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1284480173 11686 80.91.229.12 (14 Sep 2010 16:02:53 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Tue, 14 Sep 2010 16:02:53 +0000 (UTC) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Sep 14 18:02:52 2010 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1OvXy7-0002QN-Ey for ged-emacs-devel@m.gmane.org; Tue, 14 Sep 2010 18:02:51 +0200 Original-Received: from localhost ([127.0.0.1]:53981 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OvXy6-0000Un-J8 for ged-emacs-devel@m.gmane.org; Tue, 14 Sep 2010 12:02:50 -0400 Original-Received: from [140.186.70.92] (port=45536 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OvXoB-0001uy-Nn for emacs-devel@gnu.org; Tue, 14 Sep 2010 11:52:36 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OvXoA-0005Lp-Kj for emacs-devel@gnu.org; Tue, 14 Sep 2010 11:52:35 -0400 Original-Received: from lo.gmane.org ([80.91.229.12]:37189) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OvXoA-0005L3-Bm for emacs-devel@gnu.org; Tue, 14 Sep 2010 11:52:34 -0400 Original-Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1OvXo8-00055R-4Q for emacs-devel@gnu.org; Tue, 14 Sep 2010 17:52:32 +0200 Original-Received: from 38.98.147.130 ([38.98.147.130]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 14 Sep 2010 17:52:32 +0200 Original-Received: from tzz by 38.98.147.130 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 14 Sep 2010 17:52:32 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 18 Original-X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: 38.98.147.130 X-Face: bd.DQ~'29fIs`T_%O%C\g%6jW)yi[zuz6; d4V0`@y-~$#3P_Ng{@m+e4o<4P'#(_GJQ%TT= D}[Ep*b!\e,fBZ'j_+#"Ps?s2!4H2-Y"sx" User-Agent: Gnus/5.110011 (No Gnus v0.11) Emacs/24.0.50 (gnu/linux) Cancel-Lock: sha1:HTjdS0yAYGrcjH9rT1cvrnuge8U= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:130135 Archived-At: On Fri, 10 Sep 2010 13:28:28 -0600 Tom Tromey wrote: >>>>>> "Ted" == Ted Zlatanov writes: Ted> If everything was inside a num64-* namespace and a num64.el package, Ted> it's a pretty easy implementation. I'm not an expert on numeric Ted> algorithms[1] but I'd guess the internals can be pretty easily Ted> implemented in ELisp as a list of up to 3 native 28-bit ints. In fact Ted> I'm surprised that doesn't exist yet; maybe I've missed it. Tom> I thought there was one in Calc. Yeah, looks like calc-math.el:math-* could work. It's all ELisp and could use some C love, especially if 64-bit is native. So Lars can use the math-* functions to store and retrieve large numbers (they fall back to native ELisp numbers) and he'll need a special range-memq to work with the math-* bignums in a range. Ted