checksum-stream ( stream checksum -- value )
Factor handbook » Input and output » Checksums

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Vocabulary
checksums

Inputs

stream	an input stream
checksum	a checksum specifier

Outputs

value

a byte-array

Generic word contract
Computes the checksum of all data read from the stream.

Side effects
Modifies stream

Definition

IN: checksums

GENERIC: checksum-stream ( stream checksum -- value )

Methods

USING: checksums checksums.common kernel ;

M: block-checksum checksum-stream
    [ swap add-checksum-stream get-checksum ]
    with-checksum-state ;


USING: checksums io kernel ;

M: checksum checksum-stream
    [ stream-contents ] dip checksum-bytes ;