entropia,
In addition to what Zaxo tells you, you could also do a freshmeat search for "hash."
Just a quick vocabulary session - an indexed array is that
data structure which is directly accessed by its position within the array
(by an integer - array[0] array[1] etc).
an associatve array, or hash or key-value pair, is that data structure which is directly (or indirectly but definetly position independent) accessed by its "key" (by a string - hash{"monks"}).
If you go the freshmeat route, search for "hash" be sure to seperate the hash algorithm stuff (MD5, SHA-1, shash, etc) from the hash data structure stuff (glibc, libdict, ght, etc) - they're slightly related but different beasties.
-derby
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