From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Emanuel Berg Newsgroups: gmane.emacs.help Subject: Re: Why is booleanp defined this way? Date: Sat, 18 Apr 2015 01:30:22 +0200 Organization: Aioe.org NNTP Server Message-ID: <87lhhqnxip.fsf@debian.uxu> References: NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1429313421 23515 80.91.229.3 (17 Apr 2015 23:30:21 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 17 Apr 2015 23:30:21 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Sat Apr 18 01:30:17 2015 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 1YjFiC-0000pJ-HC for geh-help-gnu-emacs@m.gmane.org; Sat, 18 Apr 2015 01:30:16 +0200 Original-Received: from localhost ([::1]:43850 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YjFiB-00087J-Pc for geh-help-gnu-emacs@m.gmane.org; Fri, 17 Apr 2015 19:30:15 -0400 X-FeedAbuse: http://nntpfeed.proxad.net/abuse.pl feeded by 195.154.70.45 Original-Path: usenet.stanford.edu!news.kjsl.com!feeder.erje.net!us.feeder.erje.net!newsfeed.fsmpi.rwth-aachen.de!newsfeed.straub-nv.de!proxad.net!feeder1-2.proxad.net!nntpfeed.proxad.net!news.redatomik.org!gegeweb.org!aioe.org!.POSTED!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 20 Original-NNTP-Posting-Host: feB02bRejf23rfBm51Mt7Q.user.speranza.aioe.org Original-X-Complaints-To: abuse@aioe.org User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4 (gnu/linux) X-Notice: Filtered by postfilter v. 0.8.2 Cancel-Lock: sha1:26xWOVmgr5MaBbUHrpqiqvsaEhI= Mail-Copies-To: never Original-Xref: usenet.stanford.edu gnu.emacs.help:211504 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:103786 Archived-At: Barry Margolin writes: > (booleanp nil) => (nil t) > (booleanp t) => (t) > (booleanp something-else) => nil Really? This is what I get: (booleanp nil) ; t (booleanp t) ; t (booleanp 1) ; nil And they are not lists: (listp (booleanp nil)) ; nil (listp (booleanp t)) ; nil -- underground experts united http://user.it.uu.se/~embe8573