Merge remote-tracking branch 'origin/master' into athena/unstable

1 files changed, 4 insertions, 13 deletions

diff --git a/lisp/gnus/gnus-range.el b/lisp/gnus/gnus-range.el
index 6cc60cb49b3..7d12ae9fdcc 100644
--- a/lisp/gnus/gnus-range.el
+++ b/lisp/gnus/gnus-range.el
@@ -42,13 +42,8 @@ If RANGE is a single range, return (RANGE).  Otherwise, return RANGE."
 
 (defun gnus-set-difference (list1 list2)
   "Return a list of elements of LIST1 that do not appear in LIST2."
-  (let ((hash2 (make-hash-table :test 'eq))
-        (result nil))
-    (dolist (elt list2) (puthash elt t hash2))
-    (dolist (elt list1)
-      (unless (gethash elt hash2)
-        (setq result (cons elt result))))
-    (nreverse result)))
+  (declare (obsolete seq-difference "28.1"))
+  (seq-difference list1 list2 #'eq))
 
 (defun gnus-range-nconcat (&rest ranges)
   "Return a range comprising all the RANGES, which are pre-sorted.
@@ -179,12 +174,8 @@ Both lists have to be sorted over <."
 
 ;;;###autoload
 (defun gnus-intersection (list1 list2)
-  (let ((result nil))
-    (while list2
-      (when (memq (car list2) list1)
-	(setq result (cons (car list2) result)))
-      (setq list2 (cdr list2)))
-    result))
+  (declare (obsolete seq-intersection "28.1"))
+  (nreverse (seq-intersection list1 list2 #'eq)))
 
 ;;;###autoload
 (defun gnus-sorted-intersection (list1 list2)