From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Richard Stallman Newsgroups: gmane.emacs.devel Subject: Re: Using the GNU GMP Library for Bignums in Emacs Date: Mon, 30 Apr 2018 23:01:19 -0400 Message-ID: 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> <871sexe19w.fsf@md5i.com> Reply-To: rms@gnu.org NNTP-Posting-Host: blaine.gmane.org Content-Type: text/plain; charset=Utf-8 X-Trace: blaine.gmane.org 1525143618 12924 195.159.176.226 (1 May 2018 03:00:18 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 1 May 2018 03:00:18 +0000 (UTC) Cc: emacs-devel@gnu.org To: Michael Welsh Duggan Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue May 01 05:00:14 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 1fDLWX-0003FJ-Uf for ged-emacs-devel@m.gmane.org; Tue, 01 May 2018 05:00:14 +0200 Original-Received: from localhost ([::1]:34585 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fDLYe-0005t9-V8 for ged-emacs-devel@m.gmane.org; Mon, 30 Apr 2018 23:02:24 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:42210) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fDLXh-0005t2-O2 for emacs-devel@gnu.org; Mon, 30 Apr 2018 23:01:26 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fDLXg-0008Mz-Qc for emacs-devel@gnu.org; Mon, 30 Apr 2018 23:01:25 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:47612) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fDLXc-0008KZ-MG; Mon, 30 Apr 2018 23:01:20 -0400 Original-Received: from rms by fencepost.gnu.org with local (Exim 4.82) (envelope-from ) id 1fDLXb-0005qW-VW; Mon, 30 Apr 2018 23:01:20 -0400 In-reply-to: <871sexe19w.fsf@md5i.com> (message from Michael Welsh Duggan on Mon, 30 Apr 2018 01:00:59 -0400) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2001:4830:134:3::e 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:225006 Archived-At: [[[ To any NSA and FBI agents reading my email: please consider ]]] [[[ whether defending the US Constitution against all enemies, ]]] [[[ foreign or domestic, requires you to follow Snowden's example. ]]] > Well, although I admit I most often use hexadecimal numbers to represent > machine addresses (including on 64-bit addresses, of course), I also use > them to represent memory offsets. I think that implies we need a way to specify for %x to use the proper width for an address on the machine in use. > I only bring this up because this is > a case when a negative hexadecimal number (-#x1000 or -0x1000) is a more > useful representation than two's complement. If it's useful in Emacs, we should support that. But we may as well take stock of the need before deciding whether to implement this. -- Dr Richard Stallman President, Free Software Foundation (https://gnu.org, https://fsf.org) Internet Hall-of-Famer (https://internethalloffame.org) Skype: No way! See https://stallman.org/skype.html.