array-total-size array → size

array — an array.

size — a non-negative integer.

Returns the array total size of the array.

(array-total-size (make-array 4)) → 4 
(array-total-size (make-array 4 :fill-pointer 2)) → 4 
(array-total-size (make-array 0)) → 0 
(array-total-size (make-array '(4 2))) → 8 
(array-total-size (make-array '(4 0))) → 0 
(array-total-size (make-array '())) → 1

Should signal an error of type type-error if its argument is not an array.

make-array, array-dimensions

If the array is a vector with a fill pointer, the fill pointer is ignored when calculating the array total size.

Since the product of no arguments is one, the array total size of a zero-dimensional array is one.

(array-total-size x) 
   ≡ (apply #'* (array-dimensions x)) 
   ≡ (reduce #'* (array-dimensions x))