Digest::xxH64Perl interface implementation to xxHash 64 bit algorithm
xxHash is an extremely fast non-cryptographic hash algorithm, working at speeds close to RAM limits. It is proposed in two flavors, 32 and 64 bits, producing 32 bit or 64 bit long digest output, respectively. (See http://www.xxhash.com for details) This module is an object oriented interface of xxHash 64-bit hash functions. The interface implementation can handle data of arbitrary length and capable to run both on 32 bit and 64 bit Perl environment.