Function: integer-or-null-p

integer-or-null-p is a byte-compiled function defined in subr.el.gz.

Signature

(integer-or-null-p OBJECT)

Documentation

Return non-nil if OBJECT is either an integer or nil.

Otherwise, return nil.

Source Code

;; Defined in /usr/src/emacs/lisp/subr.el.gz
(defun integer-or-null-p (object)
  "Return non-nil if OBJECT is either an integer or nil.
Otherwise, return nil."
  (declare (pure t) (side-effect-free error-free))
  (or (integerp object) (null object)))