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Strange incf behavior in Emacs 22. Intentional?
From: |
address@hidden |
Subject: |
Strange incf behavior in Emacs 22. Intentional? |
Date: |
Thu, 28 Jun 2007 05:41:31 -0700 |
User-agent: |
G2/1.0 |
Here are two functions:
(defun testfun1 ()
(interactive)
(setq a '(0 0))
(print a))
(defun testfun2 ()
(interactive)
(incf (car a))
(print a))
I call the first one, a is (0 0).
I call the second one, a is (1 0).
I call the second one, a is (2 0).
I call the first one, a is (2 0).
"a" won't get the value (0 0) again until I redefine testfun1.
I suspect it is caused be some kind of internal optimization. Is it
intentional? It cost me a great deal of head scratching to find out
why my program doesn't work.
- Strange incf behavior in Emacs 22. Intentional?,
address@hidden <=