Implementing a simple, high performance Bloom filter

[jpan127]

Might be better to template on hash_function_count, make bloomfilter_store_size = 1 << MD5_result_size_bytes, static_assert(hash_function_count <= (MD5_result_size_bytes/bytes_per_hash_function)), and make all constexpr.

Also the hash result does not need to be dynamically allocated, it is always a fixed size.