over [ count ] [ length ] bi* / ; inline
: find-last-index ( ... seq quot: ( ... elt i -- ... ? ) -- ... i elt )
- [ [ 1 - ] dip find-last-integer-from ] (find-index) ; inline
+ [ [ 1 - ] dip find-last-integer ] (find-index) ; inline
: map-find-last-index ( ... seq quot: ( ... elt index -- ... result/f ) -- ... result i elt )
[ find-last-index ] (map-find-index) ; inline