sparsehash - An extremely memory-efficient hash_map implementation - Google Project Hosting

sparsehash - An extremely memory-efficient hash_map implementation - Google Project Hosting

An extremely memory-efficient hash_map implementation. 2 bits/entry overhead! The SparseHash library contains several hash-map implementations, including implementations that optimize for space or speed.

These hashtable implementations are similar in API to SGI's hash_map class and the tr1 unordered_map class, but with different performance characteristics. It's easy to replace hash_map or unordered_map by sparse_hash_map or dense_hash_map in C++ code.

They also contain code to serialize and unserialize from disk.

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