sparsehash | C++ associative containers | Hashing library

sparsehash is a C++ library typically used in Security, Hashing applications. sparsehash has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

This directory contains several hash-map implementations, similar in API to SGI's hash_map class, but with different performance characteristics. sparse_hash_map uses very little space overhead, 1-2 bits per entry. dense_hash_map is very fast, particulary on lookup. (sparse_hash_set and dense_hash_set are the set versions of these routines.) On the other hand, these classes have requirements that may not make them appropriate for all applications. All these implementation use a hashtable with internal quadratic probing. This method is space-efficient -- there is no pointer overhead -- and time-efficient for good hash functions.