From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Drew Adams Newsgroups: gmane.emacs.bugs Subject: bug#15405: 24.3; #[] freezes emacs Date: Fri, 20 Sep 2013 09:21:27 -0700 (PDT) Message-ID: <1842522b-7de0-4409-9cac-71b0b5916722@default> References: <8361tynp73.fsf@gnu.org> <834n9inoa0.fsf@gnu.org> <871u4mcf2h.fsf@rosalinde.fritz.box> <831u4mnlit.fsf@gnu.org> <83txhilymg.fsf@gnu.org> <83ob7pmh28.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1379694141 9797 80.91.229.3 (20 Sep 2013 16:22:21 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 20 Sep 2013 16:22:21 +0000 (UTC) Cc: stephen.berman@gmx.net, 15405@debbugs.gnu.org, Leo Liu To: Barry OReilly , Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Sep 20 18:22:22 2013 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1VN3TK-0006MY-OR for geb-bug-gnu-emacs@m.gmane.org; Fri, 20 Sep 2013 18:22:22 +0200 Original-Received: from localhost ([::1]:56755 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VN3TK-0007Nj-BU for geb-bug-gnu-emacs@m.gmane.org; Fri, 20 Sep 2013 12:22:22 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:41171) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VN3T9-0007NX-6m for bug-gnu-emacs@gnu.org; Fri, 20 Sep 2013 12:22:19 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VN3T0-0005nM-Jw for bug-gnu-emacs@gnu.org; Fri, 20 Sep 2013 12:22:11 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:43203) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VN3T0-0005n5-G3 for bug-gnu-emacs@gnu.org; Fri, 20 Sep 2013 12:22:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1VN3Sz-0000nv-Po for bug-gnu-emacs@gnu.org; Fri, 20 Sep 2013 12:22:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Drew Adams Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 20 Sep 2013 16:22:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 15405 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 15405-submit@debbugs.gnu.org id=B15405.13796941003055 (code B ref 15405); Fri, 20 Sep 2013 16:22:01 +0000 Original-Received: (at 15405) by debbugs.gnu.org; 20 Sep 2013 16:21:40 +0000 Original-Received: from localhost ([127.0.0.1]:51491 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VN3Sd-0000nA-BL for submit@debbugs.gnu.org; Fri, 20 Sep 2013 12:21:39 -0400 Original-Received: from userp1040.oracle.com ([156.151.31.81]:20936) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VN3Sa-0000mt-64 for 15405@debbugs.gnu.org; Fri, 20 Sep 2013 12:21:37 -0400 Original-Received: from ucsinet21.oracle.com (ucsinet21.oracle.com [156.151.31.93]) by userp1040.oracle.com (Sentrion-MTA-4.3.1/Sentrion-MTA-4.3.1) with ESMTP id r8KGLT02001832 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 20 Sep 2013 16:21:30 GMT Original-Received: from aserz7022.oracle.com (aserz7022.oracle.com [141.146.126.231]) by ucsinet21.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id r8KGLSed008512 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 20 Sep 2013 16:21:29 GMT Original-Received: from abhmt120.oracle.com (abhmt120.oracle.com [141.146.116.72]) by aserz7022.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id r8KGLSU3019272; Fri, 20 Sep 2013 16:21:28 GMT In-Reply-To: X-Priority: 3 X-Mailer: Oracle Beehive Extensions for Outlook 2.0.1.8 (707110) [OL 12.0.6680.5000 (x86)] X-Source-IP: ucsinet21.oracle.com [156.151.31.93] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:78613 Archived-At: >> Perhaps (eval #[]) should evaluate to [] instead of #[]? > > An alternative is to fix the counter intuitive fact that (eq [] []) > is t. Doing so could break Elisp code that relies on the behavior, and > possibly impact performance. FWIW, this behavior was introduced only recently: 24.3. It is true for only this one Emacs release (so far). It is an incompatible change from Emacs prior to 24.3, where (eq [] []) is nil.