From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Whitfield Diffie Newsgroups: gmane.emacs.bugs Subject: Forward-char at end of buffer Date: Mon, 26 Jun 2006 11:17:18 -0700 Message-ID: <200606261817.k5QIHIS4013711@ushabti.sfbay.sun.com> NNTP-Posting-Host: main.gmane.org X-Trace: sea.gmane.org 1151360596 13790 80.91.229.2 (26 Jun 2006 22:23:16 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Mon, 26 Jun 2006 22:23:16 +0000 (UTC) Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Jun 27 00:23:14 2006 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by ciao.gmane.org with esmtp (Exim 4.43) id 1FuzU5-00021n-Qs for geb-bug-gnu-emacs@m.gmane.org; Tue, 27 Jun 2006 00:23:10 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1FuzU4-0006Iq-Hb for geb-bug-gnu-emacs@m.gmane.org; Mon, 26 Jun 2006 18:23:08 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Fuvh7-0001bY-Nh for bug-gnu-emacs@gnu.org; Mon, 26 Jun 2006 14:20:21 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Fuvh4-0001ap-Qz for bug-gnu-emacs@gnu.org; Mon, 26 Jun 2006 14:20:21 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Fuvh4-0001am-NA for bug-gnu-emacs@gnu.org; Mon, 26 Jun 2006 14:20:18 -0400 Original-Received: from [192.18.42.26] (helo=nwkea-mail-4.sun.com) by monty-python.gnu.org with esmtp (Exim 4.52) id 1Fuvt0-0005Cb-62 for bug-gnu-emacs@gnu.org; Mon, 26 Jun 2006 14:32:38 -0400 Original-Received: from sfbaymail1sca.SFBay.Sun.COM ([129.145.154.35]) by nwkea-mail-4.sun.com (8.13.6+Sun/8.12.9) with ESMTP id k5QIKGmj000248 for ; Mon, 26 Jun 2006 11:20:17 -0700 (PDT) Original-Received: from ushabti.sfbay.sun.com (ushabti.SFBay.Sun.COM [129.146.74.69]) by sfbaymail1sca.SFBay.Sun.COM (8.13.6+Sun/8.13.6/ENSMAIL, v2.2) with ESMTP id k5QIKGua002284 for ; Mon, 26 Jun 2006 11:20:16 -0700 (PDT) Original-Received: from ushabti.sfbay.sun.com (localhost [127.0.0.1]) by ushabti.sfbay.sun.com (8.13.5+Sun/8.13.5) with ESMTP id k5QIHJWd013714; Mon, 26 Jun 2006 11:17:19 -0700 (PDT) Original-Received: (from diffie@localhost) by ushabti.sfbay.sun.com (8.13.5+Sun/8.13.5/Submit) id k5QIHIS4013711; Mon, 26 Jun 2006 11:17:18 -0700 (PDT) Original-To: bug-gnu-emacs@gnu.org Started-at: 2006.06.26-11:09:16 X-Mailman-Approved-At: Mon, 26 Jun 2006 18:23:05 -0400 X-BeenThere: bug-gnu-emacs@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:15170 Archived-At: Monday 26 June 2006 at 11:09 Am I missing something? Visit an empty buffer in a fresh --no-init emacs. Set debug-on-error to true and type a control -f. An `end of buffer error will appear in the echo area but no backtrace. Type control-x control-x and a `No mark set in this buffer' error message appears and causes a backtrace. Alternatively in the same circumstances, evaluate (progn (setq aa 1) (forward-char 1) (setq bb 2)) The variable aa now has the value 1 and bb is undefined. This seems to be true in emacs 21 on both Solaris and MacOs X. Forward-char wasn't meant to produce an untrapped error was it? Whit