Function: ring-plus1

ring-plus1 is a byte-compiled function defined in ring.el.gz.

Signature

(ring-plus1 INDEX VECLEN)

Documentation

Return INDEX+1, with wraparound.

Source Code

;; Defined in /usr/src/emacs/lisp/emacs-lisp/ring.el.gz
(defun ring-plus1 (index veclen)
  "Return INDEX+1, with wraparound."
  (let ((new-index (1+ index)))
    (if (= new-index veclen) 0 new-index)))