[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Get rid of free variable warning from other packages?
|
From: |
Andreas Röhler |
|
Subject: |
Re: Get rid of free variable warning from other packages? |
|
Date: |
Wed, 10 Apr 2013 07:31:29 +0200 |
|
User-agent: |
Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130307 Thunderbird/17.0.4 |
Am 10.04.2013 00:13, schrieb Drew Adams:
[ ... ]
(defvar ido-decorations)
IOW, a vacuous defvar: no value initialization.
In Emacs Lisp, the symbol nil has two meanings. First, it means the empty list.
Second, it means false and is the value returned when a true-or-false-test
tests false.
http://www.gnu.org/software/emacs/emacs-lisp-intro/html_node/nil-explained.html
Or to say: nil means false, but false is more than nothing :)
Cheers,
Andreas