From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: waterloo Newsgroups: gmane.emacs.help Subject: about defconst. Date: Mon, 27 Jul 2009 12:48:55 +0800 Message-ID: <907065090907262148v7490cb02gc796424c46b65b3@mail.gmail.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary=005045029ff8db43f2046fa8abd3 X-Trace: ger.gmane.org 1248670176 31004 80.91.229.12 (27 Jul 2009 04:49:36 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 27 Jul 2009 04:49:36 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Mon Jul 27 06:49:29 2009 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1MVI9Q-0007fD-F8 for geh-help-gnu-emacs@m.gmane.org; Mon, 27 Jul 2009 06:49:29 +0200 Original-Received: from localhost ([127.0.0.1]:58647 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1MVI9P-0003DI-Ip for geh-help-gnu-emacs@m.gmane.org; Mon, 27 Jul 2009 00:49:27 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1MVI90-0003D2-3W for help-gnu-emacs@gnu.org; Mon, 27 Jul 2009 00:49:02 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1MVI8v-0003Cd-Fe for help-gnu-emacs@gnu.org; Mon, 27 Jul 2009 00:49:01 -0400 Original-Received: from [199.232.76.173] (port=48641 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1MVI8v-0003Ca-8r for help-gnu-emacs@gnu.org; Mon, 27 Jul 2009 00:48:57 -0400 Original-Received: from wf-out-1314.google.com ([209.85.200.171]:19023) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1MVI8u-0008UL-Iv for help-gnu-emacs@gnu.org; Mon, 27 Jul 2009 00:48:56 -0400 Original-Received: by wf-out-1314.google.com with SMTP id 23so834405wfg.24 for ; Sun, 26 Jul 2009 21:48:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:date:message-id:subject :from:to:content-type; bh=VNGKfbXclWp3KdPF3MPndvFW3w9CIp+gp2nF/tF6MXI=; b=YTroOUne+OdRF9+2mFMTCBXlYNXRf8E+R47coEYy8LKvJ2bz8TxfpQcbyB1h0NPLOM KAWUAUjKn+jTSK2L44TA778Cq7CjIJkCBcgK+RZwyMAeztsyitzhQ9thsJ++7lAUdclc FZOaqEVUt7A1+QSEF3uZmFaCB+VWqby9GYWOg= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=RNIAuhf9kAiIoia0qKIN0ZFYx2bY0h5YQJE3rwEarlLbg5k5adpCaGbceFZ5Z3MQZQ vqxn+Vk+7MMiqXqJgjRZDVOkyoNj3PQKw8kpYdiHH9kQvJT8HKz2laI+la6AaI0wnRHO xGcfYGT/LKXKs0HYr4TcihI1O69QNLNolgmUo= Original-Received: by 10.143.13.16 with SMTP id q16mr696511wfi.256.1248670135304; Sun, 26 Jul 2009 21:48:55 -0700 (PDT) X-detected-operating-system: by monty-python.gnu.org: GNU/Linux 2.6 (newer, 2) 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:66415 Archived-At: --005045029ff8db43f2046fa8abd3 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Incidentally, to be more complete concerning defines: `defsubst' defines an inline function. The syntax is just like that of `defun'. `defconst' defines a symbol as a constant. The intent is that neither programs nor users should ever change a value set by `defconst'. (You can change it; the value set is a variable; but please do not.) -------------------------------- I can understant the last sentence in parentheses . What does it mean ? Thanks --005045029ff8db43f2046fa8abd3 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Incidentally, to be more complete concerning defines:=A0 `defsubst'
= defines an inline function.=A0 The syntax is just like that of `defun'.=
`defconst' defines a symbol as a constant.=A0 The intent is that ne= ither
programs nor users should ever change a value set by `defconst'.=A0 (Yo= u
can change it; the value set is a variable; but please do not.)
---= -----------------------------
I can understant the last sentence in pare= ntheses .
What does it mean ?
Thanks
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