fp-bitwise= ( x y -- ? )
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fp-nan-payload ( x -- bits )

Vocabulary
math

Inputs

x	a float
y	a float

Outputs

?

a boolean

Word description
Compares two floating point numbers for bit equality.

Notes
Unlike = or number=, this word will consider NaNs with equal payloads to be equal, and positive zero and negative zero to be not equal.

Examples
Not-a-number equality:

USING: kernel math prettyprint ; 0.0 0.0 / dup number= .
f

USING: kernel math prettyprint ; 0.0 0.0 / dup fp-bitwise= .
t

Signed zero equality:

USING: math prettyprint ; -0.0 0.0 fp-bitwise= .
f

USING: math prettyprint ; -0.0 0.0 number= .
t

Definition

USING: kernel ;

IN: math

: fp-bitwise= ( x y -- ? ) [ double>bits ] same? ; inline