Function: sc-valid-index-p

sc-valid-index-p is a byte-compiled function defined in supercite.el.gz.

Signature

(sc-valid-index-p INDEX)

Documentation

Return INDEX if it is a valid index into sc-rewrite-header-list.

Otherwise returns nil.

Source Code

;; Defined in /usr/src/emacs/lisp/mail/supercite.el.gz
(defun sc-valid-index-p (index)
  "Return INDEX if it is a valid index into `sc-rewrite-header-list'.
Otherwise returns nil."
    ;; a number, and greater than or equal to zero
    ;; less than or equal to the last index
    (and (natnump index)
	 (< index (length sc-rewrite-header-list))
	 index))