com.mware.ge.helpers

Class Numbers

java.lang.Object

com.mware.ge.helpers.Numbers

public class Numbers
extends Object

Constructor Summary

Constructors

Constructor and Description
Numbers()

Method Summary

Modifier and Type	Method and Description
static boolean	isPowerOfTwo(long value) Checks if value is a power of 2.
static int	log2floor(long value) Returns base 2 logarithm of the closest power of 2 that is less or equal to the value.
static short	safeCastIntToShort(int value)
static byte	safeCastIntToUnsignedByte(int value)
static short	safeCastIntToUnsignedShort(int value)
static byte	safeCastLongToByte(long value)
static int	safeCastLongToInt(long value)
static short	safeCastLongToShort(long value)
static int	unsignedByteToInt(byte value)
static int	unsignedShortToInt(short value)

Methods inherited from class java.lang.Object

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

Constructor Detail

Numbers

public Numbers()

Method Detail

isPowerOfTwo

public static boolean isPowerOfTwo(long value)

Checks if value is a power of 2.

Parameters:

value - the value to check

Returns:

true if value is a power of 2.

log2floor

public static int log2floor(long value)

Returns base 2 logarithm of the closest power of 2 that is less or equal to the value.

Parameters:

value - a positive long value

safeCastIntToUnsignedShort

public static short safeCastIntToUnsignedShort(int value)

safeCastIntToUnsignedByte

public static byte safeCastIntToUnsignedByte(int value)

safeCastLongToInt

public static int safeCastLongToInt(long value)

safeCastLongToShort

public static short safeCastLongToShort(long value)

safeCastIntToShort

public static short safeCastIntToShort(int value)

safeCastLongToByte

public static byte safeCastLongToByte(long value)

unsignedShortToInt

public static int unsignedShortToInt(short value)

unsignedByteToInt

public static int unsignedByteToInt(byte value)