division-by-zero? ( object -- ? )

Vocabulary

math.ratios

Inputs and outputs

object	an object
?	a boolean

Word description

Tests if the object is an instance of the division-by-zero class.

Definition

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

IN: math.ratios

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