From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Using the GNU GMP Library for Bignums in Emacs Date: Tue, 10 Jul 2018 21:31:24 -0400 Message-ID: References: <29f933ac-a6bf-8742-66a7-0a9d6d3e5a88@disroot.org> <83bmecy6fx.fsf@gnu.org> <0d3175d8-d996-651e-b221-71978bde3a65@cs.ucla.edu> <87tvpdnzgy.fsf@tromey.com> <4c2a814f-c254-29e5-39cf-11b5f2e5c9c8@cs.ucla.edu> <49d8ba62-c9a5-9203-d882-8e900b441ff3@cs.ucla.edu> <8e0320d9-e0d0-2b57-57cc-2df4399f133c@cs.ucla.edu> <800714ed-990a-676d-e68c-e6c6bcd72c57@cs.ucla.edu> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1531272669 16455 195.159.176.226 (11 Jul 2018 01:31:09 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 11 Jul 2018 01:31:09 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed Jul 11 03:31:04 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 1fd3yC-0004D6-Ez for ged-emacs-devel@m.gmane.org; Wed, 11 Jul 2018 03:31:04 +0200 Original-Received: from localhost ([::1]:51047 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fd40J-00019M-Kr for ged-emacs-devel@m.gmane.org; Tue, 10 Jul 2018 21:33:15 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:50006) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fd3yo-0000XG-Kj for emacs-devel@gnu.org; Tue, 10 Jul 2018 21:31:43 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fd3yj-0007Oy-OE for emacs-devel@gnu.org; Tue, 10 Jul 2018 21:31:42 -0400 Original-Received: from [195.159.176.226] (port=57548 helo=blaine.gmane.org) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1fd3yj-0007OC-Fm for emacs-devel@gnu.org; Tue, 10 Jul 2018 21:31:37 -0400 Original-Received: from list by blaine.gmane.org with local (Exim 4.84_2) (envelope-from ) id 1fd3wZ-0002i1-Is for emacs-devel@gnu.org; Wed, 11 Jul 2018 03:29:23 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 19 Original-X-Complaints-To: usenet@blaine.gmane.org Cancel-Lock: sha1:EVJi3aKg2/HqBuIFYDui1Zy2y2s= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 195.159.176.226 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:227230 Archived-At: > Speak for yourself. I certainly don't want goto-char or aref to work on > bignums. I bed 200 dollars that Emacs will not support buffer sizes or > array lengths beyond most-positive-fixnum within the next year. bignums don't make much sense for array sizes and indices, indeed (except maybe for boolean-vectors), but for buffer sizes they would allow buffers >512MB (tho still <4GB or likely even <2GB) on 32bit systems without having to pay for the --wide-int tax. > To write reasonable programs, programmers need to have reasonable models > of how computers work and in particular they need to now how data types > are physically represented. That's why some programmers want know if a > sequence is a list or a vector or if a number is a fixnum, a flonum, or > a bignum. In case there was still a doubt: I fully agree. Stefan