vector-pop vector => element
Arguments and Values:
vector---a vector with a fill pointer.
Decreases the fill pointer of vector by one, and retrieves the element of vector that is designated by the new fill pointer.
(vector-push (setq fable (list 'fable)) (setq fa (make-array 8 :fill-pointer 2 :initial-element 'sisyphus))) => 2 (fill-pointer fa) => 3 (eq (vector-pop fa) fable) => true (vector-pop fa) => SISYPHUS (fill-pointer fa) => 1
The fill pointer is decreased by one.
The value of the fill pointer.
An error of type type-error is signaled if vector does not have a fill pointer.
If the fill pointer is zero, vector-pop signals an error of type error.
vector-push, vector-push-extend, fill-pointer