Thanks, Kon.
On 12/19/2014 11:45 PM, Kon Lovett wrote:
On Dec 19, 2014, at 10:38 PM, Alexej Magura <agm2...@gmail.com
<mailto:agm2...@gmail.com>> wrote:
In Common Lisp, clisp specifically, you can test whether a symbol has
been bound, that is interned, or not using boundp; is there a way to
do this in Chicken?
(boundp 'a) ; nil
(defvar a 1)
(boundp 'a) ; t
I wrote up a function once a while back that used exception handling
to check if a symbol had been defined, but if there's already an egg
that provides this support or if it's built-in, I wanted to know so
that I wouldn't have to bother trying to rewrite said function.
Look at the symbol-utils egg unbound-value unbound-value? unbound?
#;1> (use symbol-utils)
#;2> (unbound? 'foo)
#t
#;3> (unbound? '+)
#f
--
Alexej Magura
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Alexej Magura
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