From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Barry Margolin Newsgroups: gmane.emacs.help Subject: Re: Modifying literal lists in Emacs lisp? Date: Fri, 13 Jun 2014 11:57:28 -0400 Organization: A noiseless patient Spider Message-ID: References: NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1402675261 3028 80.91.229.3 (13 Jun 2014 16:01:01 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 13 Jun 2014 16:01:01 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Fri Jun 13 18:00:54 2014 Return-path: Envelope-to: geh-help-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 1WvTuP-0003bU-AP for geh-help-gnu-emacs@m.gmane.org; Fri, 13 Jun 2014 18:00:53 +0200 Original-Received: from localhost ([::1]:59824 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WvTuO-0006HF-Tm for geh-help-gnu-emacs@m.gmane.org; Fri, 13 Jun 2014 12:00:52 -0400 Original-Path: usenet.stanford.edu!news.kjsl.com!feeder.erje.net!eu.feeder.erje.net!eternal-september.org!feeder.eternal-september.org!news.eternal-september.org!barmar.motzarella.org!.POSTED!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 21 Injection-Info: barmar.motzarella.org; posting-host="2be9e9f5dd9af768b8861af71b85fc28"; logging-data="20988"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+cnK26smmhTzbz/8LE3Fit" User-Agent: MT-NewsWatcher/3.5.3b3 (Intel Mac OS X) Cancel-Lock: sha1:2Ft6gL36w1idpMJnKhDiZ71vdh0= Original-Xref: usenet.stanford.edu gnu.emacs.help:205944 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:98214 Archived-At: In article , Nicolas Petton wrote: > Hi, > > In Common Lisp one should not modify literal lists because of possible > shared conses. > > I was wondering if it is the same in Emacs Lisp, but I couldn't find > anything in the documentattion. Yes, you should not do it for the exact same reason. There have been many threads in the Emacs newsgroups about the failures that result. I don't know if it's documented (I've been searching and can't find it either), but it works essentially the same way as in CL. -- Barry Margolin, barmar@alum.mit.edu Arlington, MA *** PLEASE post questions in newsgroups, not directly to me ***