scala

class BigInt

[source: scala/BigInt.scala]

@serializable

class BigInt(val bigInteger : BigInteger)
extends Number with AnyRef
Author
Martin Odersky
Version
1.0, 15/07/2003
Method Summary
def % (that : BigInt) : BigInt
Remainder of BigInts
def & (that : BigInt) : BigInt
Bitwise and of BigInts
def &~ (that : BigInt) : BigInt
Bitwise and-not of BigInts. Returns a BigInt whose value is (this & ~that).
def * (that : BigInt) : BigInt
Multiplication of BigInts
def + (that : BigInt) : BigInt
Addition of BigInts
def - (that : BigInt) : BigInt
Subtraction of BigInts
def / (that : BigInt) : BigInt
Division of BigInts
def /% (that : BigInt) : (BigInt, BigInt)
Returns a pair of two BigInts containing (this / that) and (this % that).
def < (that : BigInt) : Boolean
Less-than of BigInts
def << (n : Int) : BigInt
Leftshift of BigInt
def <= (that : BigInt) : Boolean
Less-than-or-equals comparison of BigInts
def > (that : BigInt) : Boolean
Greater-than comparison of BigInts
def >= (that : BigInt) : Boolean
Greater-than-or-equals comparison of BigInts
def >> (n : Int) : BigInt
(Signed) rightshift of BigInt
def ^ (that : BigInt) : BigInt
Bitwise exclusive-or of BigInts
def abs : BigInt
Returns the absolute value of this BigInt
def bitCount : Int
Returns the number of bits in the two's complement representation of this BigInt that differ from its sign bit.
def bitLength : Int
Returns the number of bits in the minimal two's-complement representation of this BigInt, excluding a sign bit.
override def byteValue : Byte
Converts this BigInt to a byte. If the BigInt is too big to fit in a byte, only the low-order 8 bits are returned. Note that this conversion can lose information about the overall magnitude of the BigInt value as well as return a result with the opposite sign.
def charValue : Char
Converts this BigInt to a char. If the BigInt is too big to fit in a char, only the low-order 16 bits are returned. Note that this conversion can lose information about the overall magnitude of the BigInt value and that it always returns a positive result.
def clearBit (n : Int) : BigInt
Returns a BigInt whose value is equivalent to this BigInt with the designated bit cleared.
def compare (that : BigInt) : Int
Compares this BigInt with the specified BigInt
def doubleValue : Double
Converts this BigInt to a double. if this BigInt has too great a magnitude to represent as a float, it will be converted to Float.NEGATIVE_INFINITY or Float.POSITIVE_INFINITY as appropriate.
def equals (that : BigInt) : Boolean
Compares this BigInt with the specified BigInt for equality.
override def equals (that : Any) : Boolean
Compares this BigInt with the specified value for equality.
def flipBit (n : Int) : BigInt
Returns a BigInt whose value is equivalent to this BigInt with the designated bit flipped.
def floatValue : Float
Converts this BigInt to a float. if this BigInt has too great a magnitude to represent as a float, it will be converted to Float.NEGATIVE_INFINITY or Float.POSITIVE_INFINITY as appropriate.
def gcd (that : BigInt) : BigInt
Returns the greatest common divisor of abs(this) and abs(that)
override def hashCode : Int
Returns the hash code for this BigInt.
def intValue : Int
Converts this BigInt to an int. If the BigInt is too big to fit in a char, only the low-order 32 bits are returned. Note that this conversion can lose information about the overall magnitude of the BigInt value as well as return a result with the opposite sign.
def isProbablePrime (certainty : Int) : Boolean
Returns true if this BigInt is probably prime, false if it's definitely composite.
def longValue : Long
Converts this BigInt to a long. If the BigInt is too big to fit in a char, only the low-order 64 bits are returned. Note that this conversion can lose information about the overall magnitude of the BigInt value as well as return a result with the opposite sign.
def lowestSetBit : Int
Returns the index of the rightmost (lowest-order) one bit in this BigInt (the number of zero bits to the right of the rightmost one bit).
def max (that : BigInt) : BigInt
Returns the maximum of this and that
def min (that : BigInt) : BigInt
Returns the minimum of this and that
def mod (that : BigInt) : BigInt
Returns a BigInt whose value is (this mod m). This method differs from `%' in that it always returns a non-negative BigInt.
def modInverse (m : BigInt) : BigInt
Returns a BigInt whose value is (the inverse of this modulo m).
def modPow (exp : BigInt, m : BigInt) : BigInt
Returns a BigInt whose value is (this raised to the power of exp modulo m).
def pow (exp : Int) : BigInt
Returns a BigInt whose value is (this raised to the power of exp).
def setBit (n : Int) : BigInt
Returns a BigInt whose value is equivalent to this BigInt with the designated bit set.
override def shortValue : Short
Converts this BigInt to a short. If the BigInt is too big to fit in a byte, only the low-order 16 bits are returned. Note that this conversion can lose information about the overall magnitude of the BigInt value as well as return a result with the opposite sign.
def signum : Int
Returns the sign of this BigInt, i.e. -1 if it is less than 0, +1 if it is greater than 0 0 if it is equal to 0
def testBit (n : Int) : Boolean
Returns true if and only if the designated bit is set.
def toByteArray : Array[Byte]
Returns a byte array containing the two's-complement representation of this BigInt. The byte array will be in big-endian byte-order: the most significant byte is in the zeroth element. The array will contain the minimum number of bytes required to represent this BigInt, including at least one sign bit.
def toString (radix : Int) : String
Returns the String representation in the specified radix of this BigInt.
override def toString : String
Returns the decimal String representation of this BigInt.
def unary_- : BigInt
Returns a BigInt whose value is the negation of this BigInt
def | (that : BigInt) : BigInt
Bitwise or of BigInts
def ~ : BigInt
Returns the bitwise complement of this BigNum
Methods inherited from AnyRef
getClass, clone, notify, notifyAll, wait, wait, wait, finalize, ==, !=, eq, ne, synchronized
Methods inherited from Any
==, !=, isInstanceOf, asInstanceOf
Method Details
override def hashCode : Int
Returns the hash code for this BigInt.

override def equals(that : Any) : Boolean
Compares this BigInt with the specified value for equality.

def equals(that : BigInt) : Boolean
Compares this BigInt with the specified BigInt for equality.

def compare(that : BigInt) : Int
Compares this BigInt with the specified BigInt

def <=(that : BigInt) : Boolean
Less-than-or-equals comparison of BigInts

def >=(that : BigInt) : Boolean
Greater-than-or-equals comparison of BigInts

def <(that : BigInt) : Boolean
Less-than of BigInts

def >(that : BigInt) : Boolean
Greater-than comparison of BigInts

def +(that : BigInt) : BigInt
Addition of BigInts

def -(that : BigInt) : BigInt
Subtraction of BigInts

def *(that : BigInt) : BigInt
Multiplication of BigInts

def /(that : BigInt) : BigInt
Division of BigInts

def %(that : BigInt) : BigInt
Remainder of BigInts

def /%(that : BigInt) : (BigInt, BigInt)
Returns a pair of two BigInts containing (this / that) and (this % that).

def <<(n : Int) : BigInt
Leftshift of BigInt

def >>(n : Int) : BigInt
(Signed) rightshift of BigInt

def &(that : BigInt) : BigInt
Bitwise and of BigInts

def |(that : BigInt) : BigInt
Bitwise or of BigInts

def ^(that : BigInt) : BigInt
Bitwise exclusive-or of BigInts

def &~(that : BigInt) : BigInt
Bitwise and-not of BigInts. Returns a BigInt whose value is (this & ~that).

def gcd(that : BigInt) : BigInt
Returns the greatest common divisor of abs(this) and abs(that)

def mod(that : BigInt) : BigInt
Returns a BigInt whose value is (this mod m). This method differs from `%' in that it always returns a non-negative BigInt.

def min(that : BigInt) : BigInt
Returns the minimum of this and that

def max(that : BigInt) : BigInt
Returns the maximum of this and that

def pow(exp : Int) : BigInt
Returns a BigInt whose value is (this raised to the power of exp).

def modPow(exp : BigInt, m : BigInt) : BigInt
Returns a BigInt whose value is (this raised to the power of exp modulo m).

def modInverse(m : BigInt) : BigInt
Returns a BigInt whose value is (the inverse of this modulo m).

def unary_- : BigInt
Returns a BigInt whose value is the negation of this BigInt

def abs : BigInt
Returns the absolute value of this BigInt

def signum : Int
Returns the sign of this BigInt, i.e. -1 if it is less than 0, +1 if it is greater than 0 0 if it is equal to 0

def ~ : BigInt
Returns the bitwise complement of this BigNum

def testBit(n : Int) : Boolean
Returns true if and only if the designated bit is set.

def setBit(n : Int) : BigInt
Returns a BigInt whose value is equivalent to this BigInt with the designated bit set.

def clearBit(n : Int) : BigInt
Returns a BigInt whose value is equivalent to this BigInt with the designated bit cleared.

def flipBit(n : Int) : BigInt
Returns a BigInt whose value is equivalent to this BigInt with the designated bit flipped.

def lowestSetBit : Int
Returns the index of the rightmost (lowest-order) one bit in this BigInt (the number of zero bits to the right of the rightmost one bit).

def bitLength : Int
Returns the number of bits in the minimal two's-complement representation of this BigInt, excluding a sign bit.

def bitCount : Int
Returns the number of bits in the two's complement representation of this BigInt that differ from its sign bit.

def isProbablePrime(certainty : Int) : Boolean
Returns true if this BigInt is probably prime, false if it's definitely composite.
Parameters
certainty - a measure of the uncertainty that the caller is willing to tolerate: if the call returns true the probability that this BigInt is prime exceeds (1 - 1/2 ^ certainty). The execution time of this method is proportional to the value of this parameter.

override def byteValue : Byte
Converts this BigInt to a byte. If the BigInt is too big to fit in a byte, only the low-order 8 bits are returned. Note that this conversion can lose information about the overall magnitude of the BigInt value as well as return a result with the opposite sign.
Overrides
Number.byteValue

override def shortValue : Short
Converts this BigInt to a short. If the BigInt is too big to fit in a byte, only the low-order 16 bits are returned. Note that this conversion can lose information about the overall magnitude of the BigInt value as well as return a result with the opposite sign.
Overrides
Number.shortValue

def charValue : Char
Converts this BigInt to a char. If the BigInt is too big to fit in a char, only the low-order 16 bits are returned. Note that this conversion can lose information about the overall magnitude of the BigInt value and that it always returns a positive result.

def intValue : Int
Converts this BigInt to an int. If the BigInt is too big to fit in a char, only the low-order 32 bits are returned. Note that this conversion can lose information about the overall magnitude of the BigInt value as well as return a result with the opposite sign.
Overrides
Number.intValue

def longValue : Long
Converts this BigInt to a long. If the BigInt is too big to fit in a char, only the low-order 64 bits are returned. Note that this conversion can lose information about the overall magnitude of the BigInt value as well as return a result with the opposite sign.
Overrides
Number.longValue

def floatValue : Float
Converts this BigInt to a float. if this BigInt has too great a magnitude to represent as a float, it will be converted to Float.NEGATIVE_INFINITY or Float.POSITIVE_INFINITY as appropriate.
Overrides
Number.floatValue

def doubleValue : Double
Converts this BigInt to a double. if this BigInt has too great a magnitude to represent as a float, it will be converted to Float.NEGATIVE_INFINITY or Float.POSITIVE_INFINITY as appropriate.
Overrides
Number.doubleValue

override def toString : String
Returns the decimal String representation of this BigInt.

def toString(radix : Int) : String
Returns the String representation in the specified radix of this BigInt.

def toByteArray : Array[Byte]
Returns a byte array containing the two's-complement representation of this BigInt. The byte array will be in big-endian byte-order: the most significant byte is in the zeroth element. The array will contain the minimum number of bytes required to represent this BigInt, including at least one sign bit.