bit-vector? ( object -- ? )
Bit vectors

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Vocabulary
bit-vectors

Inputs and outputs

object	an object
?	a boolean

Word description
Tests if the object is an instance of the bit-vector class.

Definition

USING: classes.tuple.private kernel slots.private ;

IN: bit-vectors

: bit-vector? ( object -- ? )
    dup tuple?
    [ layout-of 7 slot \ bit-vector eq? ] [ drop f ] if ;