Vocabulary
hashtables.private

Inputs and outputs

key	a key
array	the underlying array of a hashtable
i	the index to begin hashtable search

Word description
Computes the index to begin searching from the hashcode of the key. Always outputs an even value since keys are stored at even indices of the underlying array.

Definition

USING: kernel math math.private ;

IN: hashtables.private

: hash@ ( key array -- i )
[ hashcode >fixnum dup fixnum+fast ] dip wrap ; inline