14 library(hash_stream): Maintain a hash on a stream
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Availability::- use_module(library(hash_stream)).(can be autoloaded)
Source[det]open_hash_stream(+OrgStream, -HashStream, +Options)
Open a filter stream on OrgStream that maintains a hash. The hash can be retrieved at any time using stream_hash/2. Provided options:
algorithm(+Algorithm)
One of md5, sha1, sha224, sha256, sha384 or sha512. Default is sha1.
close_parent(+Bool)
If true (default), closing the filter stream also closes the original (parent) stream.