-USING: arrays assocs kernel kernel.private locals math
-math.order sequences sequences.extras sequences.private sorting ;
+USING: arrays assocs kernel kernel.private math math.order
+sequences sequences.extras sequences.private sorting ;
IN: sorting.extras
: argsort ( seq quot: ( obj1 obj2 -- <=> ) -- sortedseq )
sort [ second-unsafe ] map! ; inline
: map-sort ( ... seq quot: ( ... elt -- ... key ) -- ... sortedseq )
- [ map ] curry keep zip
+ [ keep ] curry { } map>assoc
[ { array } declare first-unsafe ] sort-with
[ { array } declare second-unsafe ] map ; inline