ghc-hashtables

This package provides a couple of different implementations of mutable hash tables in the ST monad, as well as a typeclass abstracting their common operations, and a set of wrappers to use the hash tables in the IO monad. This package currently contains three hash table implementations: 1. Data.HashTable.ST.Basic contains a basic open-addressing hash table using linear probing as the collision strategy. 2. Data.HashTable.ST.Cuckoo contains an implementation of "cuckoo hashing" which has worst-case O(1) lookups and can reach a high "load factor". 3. Data.HashTable.ST.Linear contains a linear hash table, which trades some insert and lookup performance for higher space efficiency and much shorter delays when expanding the table.

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