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: Sun, 22 Apr 2018 23:39:28 -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> Reply-To: rms@gnu.org NNTP-Posting-Host: blaine.gmane.org Content-Type: text/plain; charset=Utf-8 X-Trace: blaine.gmane.org 1524454711 16203 195.159.176.226 (23 Apr 2018 03:38:31 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Mon, 23 Apr 2018 03:38:31 +0000 (UTC) Cc: eller.helmut@gmail.com, emacs-devel@gnu.org To: Paul Eggert Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Apr 23 05:38:27 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 1fASJ8-000492-JT for ged-emacs-devel@m.gmane.org; Mon, 23 Apr 2018 05:38:26 +0200 Original-Received: from localhost ([::1]:33820 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fASLF-0006DX-33 for ged-emacs-devel@m.gmane.org; Sun, 22 Apr 2018 23:40:37 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:57536) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fASKD-0006Cc-Co for emacs-devel@gnu.org; Sun, 22 Apr 2018 23:39:34 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fASKC-0005UC-CX for emacs-devel@gnu.org; Sun, 22 Apr 2018 23:39:33 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:33580) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fASK8-0005SY-M8; Sun, 22 Apr 2018 23:39:28 -0400 Original-Received: from rms by fencepost.gnu.org with local (Exim 4.82) (envelope-from ) id 1fASK8-0005MX-22; Sun, 22 Apr 2018 23:39:28 -0400 In-reply-to: <42cbc5ab-2f02-4aa5-4b19-7b2357f91692@cs.ucla.edu> (message from Paul Eggert on Sun, 22 Apr 2018 10:47:10 -0700) 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:224796 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. ]]] > The usual approach for this is to format negative numbers with a leading minus > sign, so that (format "%x" -1) returns "-1". This is what Emac Lisp should have I think that change is likely to break things. If you WANT a hex string, you probably want it to be all hex, regardless of value. I would expect that each use of %x probably has a certain number of bits in mind. Perhaps %x should take a number of bits and output modularly. So %24x would output 24 bits' worth. Always unsigned. -- 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.