[Haskell-cafe] Pure hashtable library

[Bulat Ziganshin]

Hello Jason,

Wednesday, August 27, 2008, 11:55:31 AM, you wrote:

>> given these constraints, it should be just a 10-20 lines of
>> code, and provide much better efficiency than any tree/trie
>> implementations

>   Much better efficiency in what way?

instead of going through many levels of tree/trie, lookup function will just select array element by hash value and look through a few elements in assoc list:

data HT a b = HT (a->Int)               -- hash function
                 (Array Int [(a,b)])

HT.lookup (HT hash arr) a   =   List.lookup (arr!hash a) a



-- 
Best regards,
 Bulat                            mailto:Bulat.Ziganshin at gmail.com
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