org.bouncycastle.util

Class Integers

java.lang.Object

org.bouncycastle.util.Integers

public class Integers
extends java.lang.Object

Utility methods and constants for ints.

Field Summary

Fields

Modifier and Type	Field and Description
static int	BYTES
static int	SIZE

Constructor Summary

Constructors

Constructor and Description
Integers()

Method Summary

Modifier and Type	Method and Description
static int	bitCount(int i)
static int	bitLength(int i)
static int	compare(int x, int y)
static int	compareUnsigned(int x, int y)
static int	highestOneBit(int i)
static int	lowestOneBit(int i)
static int	numberOfLeadingZeros(int i)
static int	numberOfTrailingZeros(int i)
static int	reverse(int i)
static int	reverseBytes(int i)
static int	rotateLeft(int i, int distance)
static int	rotateRight(int i, int distance)
static byte[]	toUnsignedByteArray(int i) Return the big-endian encoding of i taken as an unsigned 32-bit value, in the fewest octets that hold its significant bits: 0 is the empty array, 255 is FF, 256 is 01 00, and a negative argument takes all four.
static java.lang.Integer	valueOf(int value)

Methods inherited from class java.lang.Object

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

Field Detail

BYTES

public static final int BYTES

See Also:

Constant Field Values

SIZE

public static final int SIZE

See Also:

Constant Field Values

Constructor Detail

Integers

public Integers()

Method Detail

bitCount

public static int bitCount(int i)

bitLength

public static int bitLength(int i)

compare

public static int compare(int x,
                          int y)

compareUnsigned

public static int compareUnsigned(int x,
                                  int y)

highestOneBit

public static int highestOneBit(int i)

lowestOneBit

public static int lowestOneBit(int i)

numberOfLeadingZeros

public static int numberOfLeadingZeros(int i)

numberOfTrailingZeros

public static int numberOfTrailingZeros(int i)

reverse

public static int reverse(int i)

reverseBytes

public static int reverseBytes(int i)

rotateLeft

public static int rotateLeft(int i,
                             int distance)

rotateRight

public static int rotateRight(int i,
                              int distance)

toUnsignedByteArray

public static byte[] toUnsignedByteArray(int i)

Return the big-endian encoding of i taken as an unsigned 32-bit value, in the fewest octets that hold its significant bits: 0 is the empty array, 255 is FF, 256 is 01 00, and a negative argument takes all four.

valueOf

public static java.lang.Integer valueOf(int value)