From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Kevin Rodgers Newsgroups: gmane.emacs.bugs Subject: Re: Forward-char at end of buffer Date: Tue, 27 Jun 2006 09:14:51 -0600 Organization: IHS Message-ID: References: <200606261817.k5QIHIS4013711@ushabti.sfbay.sun.com> NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Trace: sea.gmane.org 1151421377 5772 80.91.229.2 (27 Jun 2006 15:16:17 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Tue, 27 Jun 2006 15:16:17 +0000 (UTC) Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Jun 27 17:16:15 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 1FvFIR-0002gF-TG for geb-bug-gnu-emacs@m.gmane.org; Tue, 27 Jun 2006 17:16:12 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1FvFIR-0006b0-8f for geb-bug-gnu-emacs@m.gmane.org; Tue, 27 Jun 2006 11:16:11 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1FvFIM-0006Z1-HB for bug-gnu-emacs@gnu.org; Tue, 27 Jun 2006 11:16:06 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1FvFIK-0006Xk-DZ for bug-gnu-emacs@gnu.org; Tue, 27 Jun 2006 11:16:05 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1FvFIJ-0006XZ-Lk for bug-gnu-emacs@gnu.org; Tue, 27 Jun 2006 11:16:03 -0400 Original-Received: from [80.91.229.2] (helo=ciao.gmane.org) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA:32) (Exim 4.52) id 1FvFUR-0005JU-9v for bug-gnu-emacs@gnu.org; Tue, 27 Jun 2006 11:28:35 -0400 Original-Received: from list by ciao.gmane.org with local (Exim 4.43) id 1FvFI7-0002dj-OJ for bug-gnu-emacs@gnu.org; Tue, 27 Jun 2006 17:15:51 +0200 Original-Received: from 207.167.42.206 ([207.167.42.206]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 27 Jun 2006 17:15:51 +0200 Original-Received: from ihs_4664 by 207.167.42.206 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 27 Jun 2006 17:15:51 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-To: bug-gnu-emacs@gnu.org Original-Lines: 25 Original-X-Complaints-To: usenet@sea.gmane.org X-Gmane-NNTP-Posting-Host: 207.167.42.206 User-Agent: Thunderbird 1.5.0.4 (Windows/20060516) In-Reply-To: <200606261817.k5QIHIS4013711@ushabti.sfbay.sun.com> 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:15174 Archived-At: Whitfield Diffie wrote: > 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? C-h v debug-ignored-errors debug-ignored-errors is documented in the Emacs Lisp manual immediately following debug-on-error. -- Kevin