Package convex.core.util

Class Huge

java.lang.Object

convex.core.util.Huge

public class Huge
extends Object

A 128-bit integer

Field Summary

Fields

Modifier and Type	Field	Description
long	hi
long	lo
static Huge	ONE
static Huge	ZERO

Method Summary

Modifier and Type	Method	Description
Huge	add(long b)	Creates a Huge by adding a long value to this Huge
static Huge	add(long a, long b)	Creates a Huge by adding two signed longs
Huge	add(Huge b)	Creates a Huge by adding another Huge
static Huge	create(long a)	Creates a new Huge by sign extending a long to 128 bits
boolean	equals(Huge a)	Tests if this Huge is equal to another Huge
boolean	equals(Object a)
static Long	fusedMultiplyDivide(long a, long b, long c)	Performs a fused multiply and divide (a * b) / c.
Huge	mul(Huge b)
static Huge	multiply(long a, long b)	Creates a new Huge by multiplying two signed longs
static Huge	multiply(Huge a, long b)	Creates a new Huge by multiplying a Huge with a signed long
Huge	negate()	Negates this Huge value
Huge	sub(Huge b)
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

ZERO

public static final Huge ZERO

ONE

public static final Huge ONE

hi

public final long hi

lo

public final long lo

Method Details

create

public static Huge create(long a)

Creates a new Huge by sign extending a long to 128 bits

Parameters:

a - Any signed 64-bit long value

Returns:

New Huge instance

multiply

public static Huge multiply(long a,
 long b)

Creates a new Huge by multiplying two signed longs

Parameters:

a - Any signed 64-bit long value

b - Any signed 64-bit long value

Returns:

Huge product of arguments

multiply

public static Huge multiply(Huge a,
 long b)

Creates a new Huge by multiplying a Huge with a signed long

Parameters:

a - Any signed 128-bit Huge value

b - Any signed 64-bit long value

Returns:

Huge product of arguments

add

public static Huge add(long a,
 long b)

Creates a Huge by adding two signed longs

Parameters:

a - Any signed 64-bit long value

b - Any signed 64-bit long value

Returns:

Huge sum of arguments

add

public Huge add(long b)

Creates a Huge by adding a long value to this Huge

Parameters:

b - Any signed 64-bit long value

Returns:

Huge sum of arguments

fusedMultiplyDivide

public static Long fusedMultiplyDivide(long a,
 long b,
 long c)

Performs a fused multiply and divide (a * b) / c. Handles cases where (a*b) would overflow a single 64-bit long.

Parameters:

a - First multiplicand

b - Second multiplicand

c - Divisor

Returns:

Result of operation, of null if result overflows a Long

add

public Huge add(Huge b)

Creates a Huge by adding another Huge

Parameters:

b - Any Huge value

Returns:

Huge sum of arguments

equals

public boolean equals(Object a)

Overrides:

equals in class Object

equals

public boolean equals(Huge a)

Tests if this Huge is equal to another Huge

Parameters:

a - Another Huge instance (must not be null)

Returns:

true is the Huge values are equal, false otherwise

toString

public String toString()

Overrides:

toString in class Object

sub

public Huge sub(Huge b)

negate

public Huge negate()

Negates this Huge value

Returns:

Huge negation of this value

mul

public Huge mul(Huge b)