hashing

#include <hpx/hashing/jenkins_hash.hpp>

namespace hpx
namespace util
class jenkins_hash
#include <jenkins_hash.hpp>

The jenkins_hash class encapsulates a hash calculation function published by Bob Jenkins here: http://burtleburtle.net/bob/hash

Public Types

enum seedenum

The seedenum is used as a dummy parameter to distinguish the different constructors

Values:

seed = 1
typedef std::uint32_t size_type

this is the type representing the result of this hash

Public Functions

jenkins_hash()

constructors and destructor

jenkins_hash(size_type size)
jenkins_hash(size_type seedval, seedenum)
~jenkins_hash()
size_type operator()(std::string const &key) const

calculate the hash value for the given key

size_type operator()(char const *key) const
bool reset(size_type size)

re-seed the hash generator

void set_seed(size_type seedval)

initialize the hash generator to a specific seed

void swap(jenkins_hash &rhs)

support for std::swap

Protected Functions

size_type hash(const char *k, std::size_t length) const

Private Members

size_type seed_

#include <hpx/hashing/fibhash.hpp>

namespace hpx
namespace util

Functions

template<std::uint64_t N>
constexpr std::uint64_t fibhash(std::uint64_t i)

#include <compatibility/hpx/util/jenkins_hash.hpp>

#include <compatibility/hpx/util/fibhash.hpp>