15.2.14 array-has-fill-pointer-p [Function]

array-has-fill-pointer-p array ⇒ generalized-boolean

Arguments and Values::

array—an array.

generalized-boolean—a generalized boolean.

Description::

Returns true if array has a fill pointer; otherwise returns false.

Examples::

 (array-has-fill-pointer-p (make-array 4)) ⇒  implementation-dependent
 (array-has-fill-pointer-p (make-array '(2 3))) ⇒  false
 (array-has-fill-pointer-p
   (make-array 8 
               :fill-pointer 2 
               :initial-element 'filler)) ⇒  true

Exceptional Situations::

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

See Also::

make-array , fill-pointer

Notes::

Since arrays of rank other than one cannot have a fill pointer, array-has-fill-pointer-p always returns nil when its argument is such an array.