adjustable-array-p array → generalized-boolean

array — an array.

generalized-boolean — a generalized boolean.

Returns true if and only if adjust-array could return a value which is identical to array when given that array as its first argument.

(adjustable-array-p 
  (make-array 5 
              :element-type 'character 
              :adjustable t 
              :fill-pointer 3)) → true 
(adjustable-array-p (make-array 4)) → implementation-dependent

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

adjust-array, make-array