array-has-fill-pointer-p (ANSI and GNU Common Lisp Document)

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#### 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.