X-Git-Url: https://gitweb.factorcode.org/gitweb.cgi?p=factor.git;a=blobdiff_plain;f=extra%2Fassocs%2Fextras%2Fextras.factor;h=7073a074382ca3ed6fa105dcb0466d9b8327c444;hp=8aee7d6d9db110e65d14d15979093f9d2586ae93;hb=baa7f3b31f3686dd30a70a3a32566c3097068e5d;hpb=07d2b0364b3301eab16a1ccfb050f5b3edddbd91

diff --git a/extra/assocs/extras/extras.factor b/extra/assocs/extras/extras.factor
index 8aee7d6d9d..7073a07438 100644
--- a/extra/assocs/extras/extras.factor
+++ b/extra/assocs/extras/extras.factor
@@ -217,8 +217,11 @@ PRIVATE>
 : flatten-values ( assoc -- assoc' )
     dup any-multi-value? [ expand-values-set-at flatten-values ] when ;
 
+: intersect-keys-as ( assoc seq exemplar -- elts )
+  [ [ of ] with ] dip zip-with-as sift-values ; inline
+
 : intersect-keys ( assoc seq -- elts )
-    [ of ] with zip-with sift-values ; inline
+    over intersect-keys-as ; inline
 
 : values-of ( assoc seq -- seq' )
     [ of ] with map ; inline