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Make optional argument equal to 0
From: |
weber |
Subject: |
Make optional argument equal to 0 |
Date: |
9 Feb 2007 03:16:54 -0800 |
User-agent: |
G2/1.0 |
Hello.
I'd like to set 'arg' to zero when nothing is passed as argument.
Here is a test function:
(defun try-arg (&optional arg)
"Show which arg is passed."
(interactive "p")
(or arg (setq arg 0))
(message "arg = %d" arg))
If I just call it with M-x try-arg, shouldn't I be geting a 0 ?
I'm getting a 1! :)
Thanks in advance,
weber
- Make optional argument equal to 0,
weber <=