From mboxrd@z Thu Jan 1 00:00:00 1970 Path: main.gmane.org!not-for-mail From: Kevin Rodgers Newsgroups: gmane.emacs.help Subject: Re: bigger integers Date: Tue, 07 Sep 2004 11:46:46 -0600 Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Message-ID: <413DF406.8010608@yahoo.com> References: NNTP-Posting-Host: deer.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Trace: sea.gmane.org 1094579414 26481 80.91.224.253 (7 Sep 2004 17:50:14 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Tue, 7 Sep 2004 17:50:14 +0000 (UTC) Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Tue Sep 07 19:49:53 2004 Return-path: Original-Received: from lists.gnu.org ([199.232.76.165]) by deer.gmane.org with esmtp (Exim 3.35 #1 (Debian)) id 1C4k6L-0004bo-00 for ; Tue, 07 Sep 2004 19:49:53 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.33) id 1C4kBZ-00060J-Ai for geh-help-gnu-emacs@m.gmane.org; Tue, 07 Sep 2004 13:55:17 -0400 Original-Path: shelby.stanford.edu!newsfeed.stanford.edu!syros.belnet.be!news.belnet.be!newsmi-eu.news.garr.it!NewsITBone-GARR!fu-berlin.de!uni-berlin.de!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 46 Original-X-Trace: news.uni-berlin.de dpjQI3T8Cze+dZYU3pJZgASM6Y2V0jYAHNXuG2sOSHNCBBXeo= User-Agent: Mozilla/5.0 (X11; U; SunOS i86pc; en-US; rv:0.9.4.1) Gecko/20020406 Netscape6/6.2.2 X-Accept-Language: en-us Original-Xref: shelby.stanford.edu gnu.emacs.help:125134 Original-To: help-gnu-emacs@gnu.org X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.5 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 Xref: main.gmane.org gmane.emacs.help:20487 X-Report-Spam: http://spam.gmane.org/gmane.emacs.help:20487 Joe Corneli wrote: > After all, emacs lisp is designed to count characters in a file, > not to compute factorials. > > "Emacs is the extensible, customizable, self-documenting real-time > display editor." > > If I can't extend or customize it to compute 12! then there seems to > be something missing. Kevin's factorial works though so I guess > that's good enough for me... oh wait a second now it stopped working. > > Debugger entered--Lisp error: (error "Lisp nesting exceeds max-lisp-eval-depth") The obvious pseudo-fix is something like: (setq max-lisp-eval-depth (* 42 max-lisp-eval-depth)) > (factorial (1- num)) > (* num (factorial (1- num))) > (if (<= num 0) 1.0 (* num (factorial ...))) > factorial(7) > (* num (factorial (1- num))) > (if (<= num 0) 1.0 (* num (factorial ...))) > factorial(8) > (* num (factorial (1- num))) > (if (<= num 0) 1.0 (* num (factorial ...))) > factorial(9) > (* num (factorial (1- num))) > (if (<= num 0) 1.0 (* num (factorial ...))) > factorial(10) > (* num (factorial (1- num))) > (if (<= num 0) 1.0 (* num (factorial ...))) > factorial(11) > (* num (factorial (1- num))) > (if (<= num 0) 1.0 (* num (factorial ...))) > factorial(12) > eval((factorial 12)) > > (This same computation was fine just a minute ago, then I tried to > compute 100! and now it doesn't want to do 12! any more.) That's weird, it sounds like the stack has been corrupted. -- Kevin Rodgers