From mboxrd@z Thu Jan 1 00:00:00 1970 Path: main.gmane.org!not-for-mail From: Luc Teirlinck Newsgroups: gmane.emacs.devel Subject: Re: (elisp)Object Internals Date: Fri, 19 Dec 2003 06:06:16 -0600 (CST) Sender: emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org Message-ID: <200312191206.hBJC6GK05581@raven.dms.auburn.edu> References: <200312190057.hBJ0vLS04703@raven.dms.auburn.edu> <200312190129.hBJ1TPC04722@raven.dms.auburn.edu> NNTP-Posting-Host: deer.gmane.org X-Trace: sea.gmane.org 1071836340 8768 80.91.224.253 (19 Dec 2003 12:19:00 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Fri, 19 Dec 2003 12:19:00 +0000 (UTC) Cc: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org Fri Dec 19 13:18:57 2003 Return-path: Original-Received: from quimby.gnus.org ([80.91.224.244]) by deer.gmane.org with esmtp (Exim 3.35 #1 (Debian)) id 1AXJar-0007bl-00 for ; Fri, 19 Dec 2003 13:18:57 +0100 Original-Received: from monty-python.gnu.org ([199.232.76.173]) by quimby.gnus.org with esmtp (Exim 3.35 #1 (Debian)) id 1AXJar-0003dY-00 for ; Fri, 19 Dec 2003 13:18:57 +0100 Original-Received: from localhost ([127.0.0.1] helo=monty-python.gnu.org) by monty-python.gnu.org with esmtp (Exim 4.24) id 1AXKY1-0003Xi-7C for emacs-devel@quimby.gnus.org; Fri, 19 Dec 2003 08:20:05 -0500 Original-Received: from list by monty-python.gnu.org with tmda-scanned (Exim 4.24) id 1AXKXF-0003Oz-5t for emacs-devel@gnu.org; Fri, 19 Dec 2003 08:19:17 -0500 Original-Received: from mail by monty-python.gnu.org with spam-scanned (Exim 4.24) id 1AXKSx-00023m-Cx for emacs-devel@gnu.org; Fri, 19 Dec 2003 08:15:22 -0500 Original-Received: from [131.204.53.104] (helo=manatee.dms.auburn.edu) by monty-python.gnu.org with esmtp (Exim 4.24) id 1AXKSw-00023S-Pw for emacs-devel@gnu.org; Fri, 19 Dec 2003 08:14:50 -0500 Original-Received: from raven.dms.auburn.edu (raven.dms.auburn.edu [131.204.53.29]) by manatee.dms.auburn.edu (8.12.10/8.12.10) with ESMTP id hBJCDXKk008342; Fri, 19 Dec 2003 06:13:33 -0600 (CST) Original-Received: (from teirllm@localhost) by raven.dms.auburn.edu (8.11.6+Sun/8.11.6) id hBJC6GK05581; Fri, 19 Dec 2003 06:06:16 -0600 (CST) X-Authentication-Warning: raven.dms.auburn.edu: teirllm set sender to teirllm@dms.auburn.edu using -f Original-To: storm@cua.dk In-reply-to: (storm@cua.dk) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.2 Precedence: list List-Id: Emacs development discussions. List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org Xref: main.gmane.org gmane.emacs.devel:18762 X-Report-Spam: http://spam.gmane.org/gmane.emacs.devel:18762 Kim Storm wrote: When I see "Depending on..." in a text, I would expect to see various alternatives following that. In this case there is nothing in the text that suggests it actually depends on anything... I should have quoted the entire paragraph: GNU Emacs Lisp manipulates many different types of data. The actual data are stored in a heap and the only access that programs have to it is through pointers. Pointers are thirty-two bits wide in most implementations. Depending on the operating system and type of machine for which you compile Emacs, twenty-eight bits are used to address the object, and the remaining four bits are used for a GC mark bit and the tag that identifies the object's type. To me, that suggests that one thing it depends on is pointer size. Sincerely, Luc.