vector-pop vector → element

vector — a vector with a fill pointer.

element — an object.

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