Hash utilities: maintain a hash state object, not a bundle of arguments.
authorMark Wooding <mdw@distorted.org.uk>
Mon, 7 Jan 2013 23:27:08 +0000 (23:27 +0000)
committerMark Wooding <mdw@distorted.org.uk>
Mon, 7 Jan 2013 23:43:32 +0000 (23:43 +0000)
This makes a number of things a bit cleaner, except that we (currently
pointlessly) remember to free up this state object when we're finished
with it.


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