Package convex.core.util

Class UMath

java.lang.Object

convex.core.util.UMath

public class UMath
extends Object

Functions for unsigned maths. It would be nice if Java included these by default.

Constructor Summary

Constructors

Constructor	Description
UMath()

Method Summary

Modifier and Type	Method	Description
static long	multiplyHigh(long a, long b)	Gets the high 64 bits of an unsigned multiply
static long	unsignedAddCarry(long a, long b)	Gets the carry of an unsigned addition of two longs

Methods inherited from class java.lang.Object

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

Constructor Details

UMath

public UMath()

Method Details

multiplyHigh

public static long multiplyHigh(long a,
 long b)

Gets the high 64 bits of an unsigned multiply

Parameters:

a - 64-bit long interpreted as unsigned value

b - 64-bit long interpreted as unsigned value

Returns:

High 64 bits of unsigned multiply

unsignedAddCarry

public static long unsignedAddCarry(long a,
 long b)

Gets the carry of an unsigned addition of two longs

Parameters:

a - 64-bit long interpreted as unsigned value

b - 64-bit long interpreted as unsigned value

Returns:

1 if the addition carries, 0 otherwise