(defparameter *stack* '(a b c))
(defparameter *list-in-list* '((1 2 3 4)))
(pop (car *list-in-list*))
((2 3 4))
The contents of place are modified.
To be done.
The effect of
(pop place) is roughly equivalent to
except that the latter would evaluate any subforms of place three times, while pop evaluates them only once.