From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Richard Stallman Newsgroups: gmane.emacs.devel Subject: Re: Lisp reader syntax and bootstrap Date: Fri, 14 Jul 2023 22:10:26 -0400 Message-ID: References: <83cz16k2kx.fsf@gnu.org> <833522jwvr.fsf@gnu.org> <87wmzdjk6l.fsf@yahoo.com> <219844d2-ca07-30f4-4e2c-1b1df76d0fa5@cs.ucla.edu> <83fs60hnj2.fsf@gnu.org> <83cz14guz3.fsf@gnu.org> <83pm52dbzh.fsf@gnu.org> <87y1jqwhhs.fsf@epfl.ch> <835y6uct1j.fsf@gnu.org> <878rbpe7a3.fsf@yahoo.com> <87y1jka126.fsf@yahoo.com> <5a110245-9b1c-be43-ca6e-2d37d3cac077@cs.ucla.edu> Reply-To: rms@gnu.org Content-Type: text/plain; charset=Utf-8 Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="5547"; mail-complaints-to="usenet@ciao.gmane.io" Cc: luangruo@yahoo.com, ulm@gentoo.org, eliz@gnu.org, contovob@tcd.ie, emacs-devel@gnu.org To: Paul Eggert Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sat Jul 15 04:11:17 2023 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qKUke-0001Ep-FE for ged-emacs-devel@m.gmane-mx.org; Sat, 15 Jul 2023 04:11:16 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qKUju-0005ei-Go; Fri, 14 Jul 2023 22:10:30 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qKUjs-0005dO-JH for emacs-devel@gnu.org; Fri, 14 Jul 2023 22:10:28 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qKUjq-00072r-O4; Fri, 14 Jul 2023 22:10:26 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=Date:References:Subject:In-Reply-To:To:From: mime-version; bh=iWVjLWd0tEVpbBPYVAlpDZvr1tivEK1gRN7v5uIEC28=; b=d1kOHVZEiGL1 G6UMt1TNSO7HQ6IVijm2XB4ZF3b1uTk+0qknS9IDRSjpy+6fXitpHLzTB6BoCw+sRPpGGluU2iNEd AGLZ3y8GvR89ED4mtdAFvw8QXbZJ5ba6YTl59jOFFI0+x2bpH94sd/Usc+CpHEN3D6Z4U+TtFjr5K 99Wp0h0ep+xlJ/YIpqfszjsN4ykWTCWLwfFHsGJisdld6sshzxpMRCzFtuflKIZKSWy5gStjk8CRB eYK3NjmslrSW4w4TWqiTqd9HiIOm6+xhvx0G/xJ3Rge8+zW2Q5dStY0S0peOiRC9VqV2dul5yoA1C Qn1vus7FWw0/STmwteRj1Q==; Original-Received: from rms by fencepost.gnu.org with local (Exim 4.90_1) (envelope-from ) id 1qKUjq-0001ZI-5S; Fri, 14 Jul 2023 22:10:26 -0400 In-Reply-To: <5a110245-9b1c-be43-ca6e-2d37d3cac077@cs.ucla.edu> (message from Paul Eggert on Thu, 13 Jul 2023 15:07:43 -0700) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 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-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:307881 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. ]]] > So I instead installed the attached patch. On a VAX this approximates > infinities and NaNs with extremal values and non-numeric objects, That's a bit of a kludge -- using those values might be wrong for some purposes... if this will really happen. > This patch shouldn't change behavior (or even the executable code) on > today's platforms. It's purely for computer museums. If that's true, maybe your solution is fine. Pu Lu, you wrote > I know of one: reader syntax for NaN and Inf cannot be used on machines > without IEEE floating point, where they will be read as symbols instead > (with possibly disastrous consequences.) Do you know of a machine where this would really happen? -- Dr Richard Stallman (https://stallman.org) Chief GNUisance of the GNU Project (https://gnu.org) Founder, Free Software Foundation (https://fsf.org) Internet Hall-of-Famer (https://internethalloffame.org)