BigInteger Class Reference

List of all members.

Public Member Functions
	BigInteger (System.String value, int radix)
	BigInteger (System.Int64 value)
	BigInteger (System.String value)
	BigInteger (byte[] value, int sign)
	BigInteger ()
override bool	Equals (System.Object value)
virtual bool	Equals (long value)
byte[]	GetData ()
override int	GetHashCode ()
void	Init (System.String val, int radix)
bool	IsNegative ()
void	SecureDelete ()
void	SetData (byte[] ivalue)
override System.String	ToString ()
System.String	ToString (int radix)
Static Public Member Functions
static implicit	operator BigInteger (long value)

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Detailed Description

This class represents an ASN.1 INTEGER built-in type. In this case, the values can be greater than 64 bits in size. This class is used in generated source code if the <bigInteger> qualifier is specified in a compiler configuration file.

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Constructor & Destructor Documentation

BigInteger

(

)

The default constructor sets the big integer value object reference to null.

BigInteger	(	byte[]	value,
		int	sign
	)

This constructor creates a new big integer object and sets it to the byte[] value passed in.

Parameters:

	value	String value
	sign	Can be -1 for negative, 0 for zero, or 1 for positive.

BigInteger

(

System.String

value

)

This constructor creates a new big integer object and sets it to the string value passed in. String value may contain the prefix that describes the radix: 0x - hexadecimal, 0o - octal, 0b - binary. The string value without prefix assumes decimal value. The optional sign '-' may be specified at the beginning of the string to specify the negative value.

Parameters:

value

String value

BigInteger

(

System.Int64

value

)

This constructor creates a new big integer object and sets it to the int value passed in.

Parameters:

value

Integer value

BigInteger	(	System.String	value,
		int	radix
	)

This constructor creates a new big integer object and sets it to the string value passed in. String value may contain the prefix that describes the radix: 0x - hexadecimal, 0o - octal, 0b - binary. The string value without prefix assumes decimal value. The optional sign '-' may be specified at the beginning of the string to specify the negative value.

Parameters:

	value	String value
	radix	Can be 16 for hexadecimal, 8 for octal, 2 for binary or 10 for decimal

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Member Function Documentation

override bool Equals

(

System.Object

value

)

This method compares this integer value to the given value for equality.

Parameters:

value

The Object to compare with the current Object. Object should be instance of BigInteger.

Returns:

true if the specified Object is equal to the current Object; otherwise, false.

virtual bool Equals

(

long

value

)

[virtual]

This method compares this integer value to the given value for equality.

Parameters:

value

The long value to compare with the current Object.

Returns:

true if the specified long value is equal to the current Object; otherwise, false.

byte [] GetData

(

)

This method provides the byte array representation of the integer value

Returns:

byte array for integer value

override int GetHashCode

(

)

Serves as a hash function for a particular type, suitable for use in hashing algorithms and data structures like a hash table.

Returns:

A hash code for the current Object.

void Init	(	System.String	val,
		int	radix
	)

Translates the String representation of a Integer in the specified radix into a BigInteger. The String representation consists of an optional minus sign followed by a sequence of one or more digits in the specified radix. The String may not contain any extraneous Characters (whitespace, for example).

Parameters:

	val	String representation of Integer.
	radix	radix to be used in interpreting string value.

Exceptions:

System.FormatException

val is not a valid representation of a BigInteger in the specified radix, or invalid value of radix.

bool IsNegative

(

)

This method checks the Integer value is negative.

Returns:

true if negative; otherwise false

static implicit operator BigInteger

(

long

value

)

[static]

Overloaded implicit conversion operator for long to BigInteger value

void SecureDelete

(

)

This function clears the current value (by overwritting with zeros). Than sets the value to zero, and passes the old value to garbage collector.

void SetData

(

byte[]

ivalue

)

This method sets the Integer value from byte array.

Parameters:

ivalue

byte array of the integer value

Returns:

Decoded integer value

See also:

<seealso cref=GetData To retrieve Byte Array

override System.String ToString

(

)

This method will return a string representation of the integer value. The format is the ASN.1 value format for this type..

Returns:

Stringified representation of the value

System.String ToString

(

int

radix

)

Returns the String representation of this BigInteger in the given radix. If the radix is invalid, it will default to 10 (as is the case for Int32.ToString). The a minus sign is prepended if appropriate. This method is compatible with BigInteger(String, int) constructor.

Parameters:

radix

radix of the String representation.

Returns:

String representation of this BigInteger in the given radix.

See also:

<seealso cref=System.Int32.ToString Integer ToString methods