unordered? ( x y -- ? )
Factor handbook » The language » Numbers » Floats » Floating point comparison operations
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Vocabulary
math

Inputs
xa real
ya real


Outputs
?a boolean


Word description
Tests if x is unordered with respect to y. This can only occur if one or both values is a floating-point Not-a-Number value.

Definition
IN: math

MATH: unordered? ( x y -- ? ) foldable flushable


Methods
USING: math math.floats.private ;

M: float unordered? float-unordered? ; inline


USING: kernel math ;

M: object unordered? 2drop f ;