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1ambda/dynamic-pitfall2.lisp

Created April 12, 2014 16:44
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dynamic-pitfall2.lisp
;; in dynamic scoping
(defun my-compose (f g)
(lambda (x)
(funcall f (funcall g x))))
(funcall
(my-compose (lambda (n) (+ n 3)) (lambda (n) (+ n 20)))
100) ; results in error, Lisp error: (void-variable f)
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