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Date: Sun, 20 Jan 2013 00:09:01 +0100
From: Frank Dittrich <>
Subject: binary_hash_[0-6] and get_hash_[0-6]

The formats currently implemented implement different numbers of hash

The following grep commands are not perfect, but I think they provide an
overview which is good enough:

(unstable-jumbo)src $ grep "binary_hash_[0-6]$" *_fmt*.c|sed
's#^.*\(.\)$#\1#'|sort|uniq -c
     16 4
    103 6
(unstable-jumbo)src $ grep "get_hash_[0-6]$" *_fmt*.c|sed
's#^.*\(.\)$#\1#'|sort|uniq -c
      3 0
      3 1
      3 2
      3 3
     19 4
      3 5
    106 6

While certain formats most likely will never be run with a number of
hashes warranting a get_hash_6 implementation, those which currently
implement 5 or 6 hash functions might implement the 7th as well.
Or am I missing something?

Another observation:
Many formats seem to use static copies of the same hash functions.
Would it make sense to provide useful default functions instead of
"implementing" N copies?


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