From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Drew Adams Newsgroups: gmane.emacs.help Subject: RE: member returns list (was: Re: To `boundp' or not to `boundp'?) Date: Tue, 1 Sep 2015 17:38:32 -0700 (PDT) Message-ID: <75212b6a-133a-401a-8051-3931a7a40958@default> References: <55E5C99B.3020608@yandex.ru> <87lhcpu2wb.fsf_-_@debian.uxu> <3c9412c3-3fff-446c-9e55-e8169b6a913d@default> <87zj15r7gs.fsf@debian.uxu> 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 1441154344 10188 80.91.229.3 (2 Sep 2015 00:39:04 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 2 Sep 2015 00:39:04 +0000 (UTC) To: Emanuel Berg , help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Wed Sep 02 02:38:52 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 1ZWw4i-0001ph-3L for geh-help-gnu-emacs@m.gmane.org; Wed, 02 Sep 2015 02:38:52 +0200 Original-Received: from localhost ([::1]:59840 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZWw4h-0000AD-I1 for geh-help-gnu-emacs@m.gmane.org; Tue, 01 Sep 2015 20:38:51 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:53476) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZWw4X-00009t-1x for help-gnu-emacs@gnu.org; Tue, 01 Sep 2015 20:38:41 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZWw4S-0004gz-2e for help-gnu-emacs@gnu.org; Tue, 01 Sep 2015 20:38:40 -0400 Original-Received: from aserp1040.oracle.com ([141.146.126.69]:28793) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZWw4R-0004gr-Rn for help-gnu-emacs@gnu.org; Tue, 01 Sep 2015 20:38:36 -0400 Original-Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id t820cZrm030700 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 2 Sep 2015 00:38:35 GMT Original-Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by aserv0022.oracle.com (8.13.8/8.13.8) with ESMTP id t820cYkS009216 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Wed, 2 Sep 2015 00:38:34 GMT Original-Received: from abhmp0012.oracle.com (abhmp0012.oracle.com [141.146.116.18]) by userv0121.oracle.com (8.13.8/8.13.8) with ESMTP id t820cYox023128; Wed, 2 Sep 2015 00:38:34 GMT In-Reply-To: <87zj15r7gs.fsf@debian.uxu> X-Priority: 3 X-Mailer: Oracle Beehive Extensions for Outlook 2.0.1.9 (901082) [OL 12.0.6691.5000 (x86)] X-Source-IP: aserv0022.oracle.com [141.146.126.234] X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] X-Received-From: 141.146.126.69 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:106975 Archived-At: > > If no such member can be found then it returns nil, > > which means that it can also function as a simple > > membership test. >=20 > OK then, what does it do when it doesn't function > like that? I don't understand the question. It always functions the same way. Whether code uses it only to test membership or to access the first tail that corresponds is up to that code. But `member' behaves ("functions") the same.