From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "Robert Thorpe" Newsgroups: gmane.emacs.help Subject: Re: (read (current-buffer)) returns an integer in a buffer full of text? Date: 29 Nov 2006 10:46:55 -0800 Organization: http://groups.google.com Message-ID: <1164826015.398581.93250@16g2000cwy.googlegroups.com> References: <1164303070.530993.199230@k70g2000cwa.googlegroups.com> <1164724454.191296.147930@14g2000cws.googlegroups.com> <1164809864.480422.120420@80g2000cwy.googlegroups.com> NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" X-Trace: sea.gmane.org 1164829418 26516 80.91.229.2 (29 Nov 2006 19:43:38 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Wed, 29 Nov 2006 19:43:38 +0000 (UTC) Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Wed Nov 29 20:43:37 2006 Return-path: Envelope-to: geh-help-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 1GpVKw-0004tK-Ft for geh-help-gnu-emacs@m.gmane.org; Wed, 29 Nov 2006 20:43:21 +0100 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1GpVKw-00078x-2Q for geh-help-gnu-emacs@m.gmane.org; Wed, 29 Nov 2006 14:43:18 -0500 Original-Path: shelby.stanford.edu!newsfeed.stanford.edu!postnews.google.com!16g2000cwy.googlegroups.com!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 36 Original-NNTP-Posting-Host: 163.244.62.65 Original-X-Trace: posting.google.com 1164826021 2773 127.0.0.1 (29 Nov 2006 18:47:01 GMT) Original-X-Complaints-To: groups-abuse@google.com Original-NNTP-Posting-Date: Wed, 29 Nov 2006 18:47:01 +0000 (UTC) In-Reply-To: User-Agent: G2/1.0 X-HTTP-UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.10) Gecko/20050716 Firefox/1.0.6,gzip(gfe),gzip(gfe) X-HTTP-Via: 1.0 EMF1ASPROXY03 Complaints-To: groups-abuse@google.com Injection-Info: 16g2000cwy.googlegroups.com; posting-host=163.244.62.65; posting-account=hWoAPxMAAAAnBKSBz1ZivwUPPjEuve7bvVCHZQ8rhrluPfwcBJd92w Original-Xref: shelby.stanford.edu gnu.emacs.help:143504 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: , Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:39106 Archived-At: Kevin Rodgers wrote: > Robert Thorpe wrote: > > Sebastian Tennant wrote: > >> However, why does this happen: > >> > >> (with-temp-buffer > >> (insert "586114704") > >> (backward-word) > >> (read (current-buffer))) > >> > >> => 49243792 > >> > >> Is there an integer limit relating to symbols somehow? > > > > The function "read" will read whatever type it finds. It will treat > > 586114704 as an integer. > > > > Try the following:- > > Type 586114704 into scratch and do C-x C-e straight afterwards. > > The echo area will display 49243792. This is because there is a limit > > on integers in Emacs, they are 26-bits long. This allows you to > > represent -67108865 to 67108864 I think. > > ,----[ C-h v most-positive-fixnum RET ] > | most-positive-fixnum is a variable defined in `C source code'. > | Its value is 268435455 > | > | Documentation: > | The largest value that is representable in a Lisp integer. > | > | [back] > `---- You must be using a CVS version of Emacs. My version does not have that variable and it certainly isn't that high.