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: Sat, 05 May 2018 23:12:27 -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> <63fdd138-77d3-89b9-aa69-490300f588a9@cs.ucla.edu> <838t90pr2l.fsf@gnu.org> <85ec3668-6b66-e47a-c10a-ffb3fc8be5d5@cs.ucla.edu> Reply-To: rms@gnu.org NNTP-Posting-Host: blaine.gmane.org Content-Type: text/plain; charset=Utf-8 X-Trace: blaine.gmane.org 1525576270 19434 195.159.176.226 (6 May 2018 03:11:10 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sun, 6 May 2018 03:11:10 +0000 (UTC) Cc: eliz@gnu.org, eggert@cs.ucla.edu, eller.helmut@gmail.com, emacs-devel@gnu.org To: Ken Raeburn Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sun May 06 05:11:05 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 1fFA4n-0004wB-G6 for ged-emacs-devel@m.gmane.org; Sun, 06 May 2018 05:11:05 +0200 Original-Received: from localhost ([::1]:40720 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fFA6u-0001ui-EU for ged-emacs-devel@m.gmane.org; Sat, 05 May 2018 23:13:16 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:55479) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fFA6D-0001uO-O7 for emacs-devel@gnu.org; Sat, 05 May 2018 23:12:34 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fFA6C-00037N-Ll for emacs-devel@gnu.org; Sat, 05 May 2018 23:12:33 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:44414) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fFA67-00032o-Q5; Sat, 05 May 2018 23:12:27 -0400 Original-Received: from rms by fencepost.gnu.org with local (Exim 4.82) (envelope-from ) id 1fFA67-00035B-3b; Sat, 05 May 2018 23:12:27 -0400 In-reply-to: (message from Ken Raeburn on Sat, 5 May 2018 01:03:30 -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:225086 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. ]]] > > Another idea: %Nx with a negative number should output its 2's > > complement representation in 4N bits. > That's already taken: A leading “-“ means to left-justify the output if the specified width is wider than required. We are miscommunicating. I'm talking about what %Nx should do when outputting an argument that is negative, as in (format "%16x" -63). Sorry that wasn't clear. You could try p/x -63 in GDB to see what I mean. -- 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.