persistent.hashtables.nodes ;
IN: persistent.hashtables.nodes.bitmap
-: index ( bit bitmap -- n ) [ 1- ] dip bitand bit-count ; inline
+: index ( bit bitmap -- n ) [ 1 - ] dip bitand bit-count ; inline
M:: bitmap-node (entry-at) ( key hashcode bitmap-node -- entry )
[let* | shift [ bitmap-node shift>> ]