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authorMichael R. Mauger <michael@mauger.com>2017-07-03 15:32:41 -0400
committerMichael R. Mauger <michael@mauger.com>2017-07-03 15:32:41 -0400
commit776635c01abd4aa759e7aa9584b513146978568c (patch)
tree554f444bc96cb6b05435e8bf195de4df1b00df8f /lisp/emacs-lisp/seq.el
parent77083e2d34ba5559ae2899d3b03cf08c2e6c5ad4 (diff)
parent4cd0db3d6e6e4d5bd49283483bdafbbfc0f583f1 (diff)
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Merge branch 'master' of git.sv.gnu.org:/srv/git/emacs
Diffstat (limited to 'lisp/emacs-lisp/seq.el')
-rw-r--r--lisp/emacs-lisp/seq.el8
1 files changed, 7 insertions, 1 deletions
diff --git a/lisp/emacs-lisp/seq.el b/lisp/emacs-lisp/seq.el
index 10de2484798..23e444fe241 100644
--- a/lisp/emacs-lisp/seq.el
+++ b/lisp/emacs-lisp/seq.el
@@ -4,7 +4,7 @@
;; Author: Nicolas Petton <nicolas@petton.fr>
;; Keywords: sequences
-;; Version: 2.19
+;; Version: 2.20
;; Package: seq
;; Maintainer: emacs-devel@gnu.org
@@ -355,6 +355,12 @@ Equality is defined by TESTFN if non-nil or by `equal' if nil."
e))
sequence))
+(cl-defgeneric seq-set-equal-p (sequence1 sequence2 &optional testfn)
+ "Return non-nil if SEQUENCE1 and SEQUENCE2 contain the same elements, regardless of order.
+Equality is defined by TESTFN if non-nil or by `equal' if nil."
+ (and (seq-every-p (lambda (item1) (seq-contains sequence2 item1 testfn)) sequence1)
+ (seq-every-p (lambda (item2) (seq-contains sequence1 item2 testfn)) sequence2)))
+
(cl-defgeneric seq-position (sequence elt &optional testfn)
"Return the index of the first element in SEQUENCE that is equal to ELT.
Equality is defined by TESTFN if non-nil or by `equal' if nil."