mikera.randomz

Class Hash

java.lang.Object

mikera.randomz.Hash

public class Hash
extends java.lang.Object

Static pseudo-random hash functions

Constructor Summary

Constructors

Constructor and Description
Hash()

Method Summary

Modifier and Type	Method and Description
static double	dhash(double x)
static double	dhash(double x, double y)
static double	dhash(double x, double y, double z)
static double	dhash(double x, double y, double z, double t)
static long	hash(double x)
static long	hash(double x, double y)
static long	hash(double x, double y, double z)
static long	hash(double x, double y, double z, double t)
static int	hashCode(double d) Hashcode for a double primitive.
static int	hashCode(int value) Hashcode for an int, defined as the value of the int itself for consistency with java.lang.Integer
static <T> int	hashCode(java.util.List<T> list) Hashcode for list of items.
static int	hashCode(long l) Hashcode for a long primitive Matches Java hashCode.
static long	longHash(long a)
static int	zeroVectorHash(int length) Return the hashCode for a vector of zeros

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Hash

public Hash()

Method Detail

longHash

public static final long longHash(long a)

hash

public static final long hash(double x)

hash

public static final long hash(double x,
                              double y)

hash

public static final long hash(double x,
                              double y,
                              double z)

hash

public static final long hash(double x,
                              double y,
                              double z,
                              double t)

dhash

public static final double dhash(double x)

dhash

public static final double dhash(double x,
                                 double y)

dhash

public static final double dhash(double x,
                                 double y,
                                 double z)

dhash

public static final double dhash(double x,
                                 double y,
                                 double z,
                                 double t)

hashCode

public static final int hashCode(int value)

Hashcode for an int, defined as the value of the int itself for consistency with java.lang.Integer

Parameters:

value -

Returns:

hashCode

public static final int hashCode(double d)

Hashcode for a double primitive. Matches Java hashCode.

Parameters:

d -

Returns:

hashCode

public static final int hashCode(long l)

Hashcode for a long primitive Matches Java hashCode.

Parameters:

l -

Returns:

hashCode

public static <T> int hashCode(java.util.List<T> list)

Hashcode for list of items. Matches Java hashcode

Parameters:

list -

Returns:

zeroVectorHash

public static int zeroVectorHash(int length)

Return the hashCode for a vector of zeros

Parameters:

length -

Returns: