Class NumberUtils

Miscellaneuos utility methods for numbers manipulation.

Inheritance

object

NumberUtils

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: Tangosol.Util

Assembly: Coherence.dll

Syntax

public abstract class NumberUtils

Methods

ChangeEndian(short)

Changes the endian of Int16 value.

Declaration

public static short ChangeEndian(short value)

Parameters

Type	Name	Description
short	value	Value for which endian is being changed.

Returns

Type	Description
short	Value with changed endian.

ChangeEndian(int)

Changes the endian of Int32 value.

Declaration

public static int ChangeEndian(int value)

Parameters

Type	Name	Description
int	value	Value for which endian is being changed.

Returns

Type	Description
int	Value with changed endian.

ChangeEndian(long)

Changes the endian of Int64 value.

Declaration

public static long ChangeEndian(long value)

Parameters

Type	Name	Description
long	value	Value for which endian is being changed.

Returns

Type	Description
long	Value with changed endian.

ChangeEndian(ushort)

Changes the endian of UInt16 value.

Declaration

public static ushort ChangeEndian(ushort value)

Parameters

Type	Name	Description
ushort	value	Value for which endian is being changed.

Returns

Type	Description
ushort	Value with changed endian.

ChangeEndian(uint)

Changes the endian of UInt32 value.

Declaration

public static uint ChangeEndian(uint value)

Parameters

Type	Name	Description
uint	value	Value for which endian is being changed.

Returns

Type	Description
uint	Value with changed endian.

ChangeEndian(ulong)

Changes the endian of UInt64 value.

Declaration

public static ulong ChangeEndian(ulong value)

Parameters

Type	Name	Description
ulong	value	Value for which endian is being changed.

Returns

Type	Description
ulong	Value with changed endian.

DecimalToRawInt128(decimal)

Converts Decimal to unscaled RawInt128 representation - compatible with Java BigInteger type.

Declaration

public static RawInt128 DecimalToRawInt128(decimal value)

Parameters

Type	Name	Description
decimal	value	Decimal value to convert.

Returns

Type	Description
RawInt128	Signed-byte array representing unscaled RawInt128 value.

DoubleToInt64Bits(double)

Converts Double to its bits, which are stored in a Int64 instance.

Declaration

public static long DoubleToInt64Bits(double value)

Parameters

Type	Name	Description
double	value	Value to convert to bits.

Returns

Type	Description
long	Bits packed within an Int64 instance.

EncodeDecimalBits(RawInt128)

Encode RawInt128 value provided to array of int values representing Decimal unscaled value bits.

Declaration

public static int[] EncodeDecimalBits(RawInt128 int128)

Parameters

Type	Name	Description
RawInt128	int128	RawInt128 value.

Returns

Type	Description
int[]	Decimal unscaled value bits as array of int.

GetRandom()

Obtain a Random object that can be used to get random values.

Declaration

public static Random GetRandom()

Returns

Type	Description
Random	A random number generator.

GetScale(decimal)

Gets a scale of Decimal value.

Declaration

public static int GetScale(decimal value)

Parameters

Type	Name	Description
decimal	value	The Decimal value to get scale from.

Returns

Type	Description
int	Scale of a Decimal.

GetUnscaledValue(decimal)

Gets the unscaled value of Decimal value.

Declaration

public static decimal GetUnscaledValue(decimal value)

Parameters

Type	Name	Description
decimal	value	The Decimal value to get scale from.

Returns

Type	Description
decimal	Decimal which is unscaled value of a Decimal.

Int32BitsToSingle(int)

Converts bits which are stored in an Int32 instance into the Single object.

Declaration

public static float Int32BitsToSingle(int value)

Parameters

Type	Name	Description
int	value	Bits packed within an Int32 instance.

Returns

Type	Description
float	Single value represented by the bits in `value`.

Int64BitsToDouble(long)

Converts bits which are stored in an Int64 instance into the Double object.

Declaration

public static double Int64BitsToDouble(long value)

Parameters

Type	Name	Description
long	value	Bits packed within an Int64 instance.

Returns

Type	Description
double	Double value represented by the bits in `value`.

IntToByteArray(int)

Converts Int32 to its byte array.

Declaration

public static byte[] IntToByteArray(int number)

Parameters

Type	Name	Description
int	number	Value to convert to byte array.

Returns

Type	Description
byte[]	Number packed within a Byte array.

IsNumber(object)

Returns true if specified object is one of .NET supported numeric types:

byte
short
int
long
double
float
decimal

Declaration

public static bool IsNumber(object num)

Parameters

Type	Name	Description
object	num	An object being tested.

Returns

Type	Description
bool	true if `num` is numeric, false otherwise.

ParseHex(char)

Return the integer value of a hexidecimal digit.

Declaration

public static int ParseHex(char ch)

Parameters

Type	Name	Description
char	ch	The hex character to evaluate.

Returns

Type	Description
int	The integer value of the passed hex character.

ParseHex(string)

Parse the passed string of hexidecimal characters into a binary value.

Declaration

public static byte[] ParseHex(string s)

Parameters

Type	Name	Description
string	s	The hex string to evaluate.

Returns

Type	Description
byte[]	The byte array value of the passed hex string.

Remarks

This implementation allows the passed string to be prefixed with "0x".

SingleToInt32Bits(float)

Converts Single to its bits, which are stored in a Int32 instance.

Declaration

public static int SingleToInt32Bits(float value)

Parameters

Type	Name	Description
float	value	Value to convert to bits.

Returns

Type	Description
int	Bits packed within an Int32 instance.

ToCrc(byte[])

Calculate a CRC32 value from a byte array.

Declaration

public static uint ToCrc(byte[] ab)

Parameters

Type	Name	Description
byte[]	ab	An array of bytes.

Returns

Type	Description
uint	The 32-bit CRC value.

ToCrc(byte[], int, int)

Calculate a CRC32 value from a portion of a byte array.

Declaration

public static uint ToCrc(byte[] ab, int of, int cb)

Parameters

Type	Name	Description
byte[]	ab	An array of bytes.
int	of	The offset into the array.
int	cb	The number of bytes to evaluate.

Returns

Type	Description
uint	The 32-bit CRC value.

ToCrc(byte[], int, int, uint)

Continue to calculate a CRC32 value from a portion of a byte array.

Declaration

public static uint ToCrc(byte[] ab, int of, int cb, uint crc)

Parameters

Type	Name	Description
byte[]	ab	An array of bytes.
int	of	The offset into the array.
int	cb	The number of bytes to evaluate.
uint	crc	The previous CRC value.

Returns

Type	Description
uint	The 32-bit CRC value.

ToHex(int)

Convert a byte to the hex sequence of 2 hex digits.

Declaration

public static string ToHex(int b)

Parameters

Type	Name	Description
int	b	The byte.

Returns

Type	Description
string	The hex sequence.

ToHexEscape(byte)

Convert a byte to a hex sequence of '0' + 'x' + 2 hex digits.

Declaration

public static string ToHexEscape(byte b)

Parameters

Type	Name	Description
byte	b	The byte.

Returns

Type	Description
string	The hex sequence.

ToHexEscape(byte[])

Convert a byte array to a hex sequence of '0' + 'x' + 2 hex digits per byte.

Declaration

public static string ToHexEscape(byte[] bytes)

Parameters

Type	Name	Description
byte[]	bytes	The byte array.

Returns

Type	Description
string	The hex sequence.

ToHexEscape(byte[], int, int)

Convert a byte array to a hex sequence of '0' + 'x' + 2 hex digits per byte.

Declaration

public static string ToHexEscape(byte[] bytes, int offset, int bytesCount)

Parameters

Type	Name	Description
byte[]	bytes	The byte array.
int	offset	The offset into array.
int	bytesCount	The number of bytes to convert.

Returns

Type	Description
string	The hex sequence.

URShift(int, int)

Performs an unsigned bitwise right shift with the specified number.

Declaration

public static int URShift(int number, int bits)

Parameters

Type	Name	Description
int	number	Number to operate on.
int	bits	Ammount of bits to shift.

Returns

Type	Description
int	The resulting number from the shift operation.

URShift(long, int)

Performs an unsigned bitwise right shift with the specified number.

Declaration

public static long URShift(long number, int bits)

Parameters

Type	Name	Description
long	number	Number to operate on.
int	bits	Ammount of bits to shift.

Returns

Type	Description
long	The resulting number from the shift operation.