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| ANSI Common Lisp 15 Arrays 15.2 Dictionary of Arrays
15.2.21 fill-pointer | Accessor
  Syntax: fill-pointer vector fill-pointer (setf (fill-pointer vector) new-fill-pointer) Arguments and Values: vector - a vector with a fill pointer. fill-pointer, new-fill-pointer - a valid fill pointer for the vector. Description: Accesses the fill pointer of vector. Examples:
       (setq a (make-array 8 :fill-pointer 4))  #(NIL NIL NIL NIL)
       (fill-pointer a)  4
       (dotimes (i (length a)) (setf (aref a i) (* i i)))   NIL
       a  #(0 1 4 9)
       (setf (fill-pointer a) 3)  3
       (fill-pointer a)  3
       a  #(0 1 4)
       (setf (fill-pointer a) 8)  8
       a  #(0 1 4 9 NIL NIL NIL NIL)
Exceptional Situations: Should signal an error of type type-error if vector is not a vector with a fill pointer. See Also: make-array, length Notes: There is no operator that will remove a vector's fill pointer. Allegro CL Implementation Details: None.

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