diff options
Diffstat (limited to 'lisp')
| -rw-r--r-- | lisp/emacs-lisp/ring.el | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/lisp/emacs-lisp/ring.el b/lisp/emacs-lisp/ring.el index fce07953ba9..6e0f9cd70b4 100644 --- a/lisp/emacs-lisp/ring.el +++ b/lisp/emacs-lisp/ring.el | |||
| @@ -155,8 +155,13 @@ will be performed." | |||
| 155 | (aref vec (ring-index index hd ln (length vec)))))) | 155 | (aref vec (ring-index index hd ln (length vec)))))) |
| 156 | 156 | ||
| 157 | (defun ring-elements (ring) | 157 | (defun ring-elements (ring) |
| 158 | "Return a list of the elements of RING." | 158 | "Return a list of the elements of RING, in order, newest first." |
| 159 | (mapcar #'identity (cddr ring))) | 159 | (let ((start (car ring)) |
| 160 | (size (ring-size ring)) | ||
| 161 | (vect (cddr ring)) | ||
| 162 | lst) | ||
| 163 | (dotimes (var (cadr ring) lst) | ||
| 164 | (push (aref vect (mod (+ start var) size)) lst)))) | ||
| 160 | 165 | ||
| 161 | ;;; provide ourself: | 166 | ;;; provide ourself: |
| 162 | 167 | ||