Class UnsignedLong

java.lang.Object

java.lang.Number

com.google.common.primitives.UnsignedLong

All Implemented Interfaces:

Serializable, Comparable<UnsignedLong>

@GwtCompatible(serializable=true)
public final class UnsignedLong
extends Number
implements Comparable<UnsignedLong>, Serializable

A wrapper class for unsigned long values, supporting arithmetic operations.

In some cases, when speed is more important than code readability, it may be faster simply to treat primitive long values as unsigned, using the methods from UnsignedLongs.

See the Guava User Guide article on unsigned primitive utilities.

Since:

11.0

Author:

Louis Wasserman, Colin Evans

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final UnsignedLong	MAX_VALUE
static final UnsignedLong	ONE
static final UnsignedLong	ZERO

Method Summary

Modifier and Type	Method	Description
BigInteger	bigIntegerValue()	Returns the value of this UnsignedLong as a BigInteger.
int	compareTo(UnsignedLong o)
UnsignedLong	dividedBy(UnsignedLong val)	Returns the result of dividing this by val.
double	doubleValue()	Returns the value of this UnsignedLong as a double, analogous to a widening primitive conversion from long to double, and correctly rounded.
boolean	equals(@Nullable Object obj)
float	floatValue()	Returns the value of this UnsignedLong as a float, analogous to a widening primitive conversion from long to float, and correctly rounded.
static UnsignedLong	fromLongBits(long bits)	Returns an UnsignedLong corresponding to a given bit representation.
int	hashCode()
int	intValue()	Returns the value of this UnsignedLong as an int.
long	longValue()	Returns the value of this UnsignedLong as a long.
UnsignedLong	minus(UnsignedLong val)	Returns the result of subtracting this and val.
UnsignedLong	mod(UnsignedLong val)	Returns this modulo val.
UnsignedLong	plus(UnsignedLong val)	Returns the result of adding this and val.
UnsignedLong	times(UnsignedLong val)	Returns the result of multiplying this and val.
String	toString()	Returns a string representation of the UnsignedLong value, in base 10.
String	toString(int radix)	Returns a string representation of the UnsignedLong value, in base radix.
static UnsignedLong	valueOf(long value)	Returns an UnsignedLong representing the same value as the specified long.
static UnsignedLong	valueOf(String string)	Returns an UnsignedLong holding the value of the specified String, parsed as an unsigned long value.
static UnsignedLong	valueOf(String string, int radix)	Returns an UnsignedLong holding the value of the specified String, parsed as an unsigned long value in the specified radix.
static UnsignedLong	valueOf(BigInteger value)	Returns a UnsignedLong representing the same value as the specified BigInteger.

Methods inherited from class java.lang.Number

byteValue, shortValue

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

ZERO

public static final UnsignedLong ZERO

ONE

public static final UnsignedLong ONE

MAX_VALUE

public static final UnsignedLong MAX_VALUE

Method Details

fromLongBits

public static UnsignedLong fromLongBits(long bits)

Returns an UnsignedLong corresponding to a given bit representation. The argument is interpreted as an unsigned 64-bit value. Specifically, the sign bit of bits is interpreted as a normal bit, and all other bits are treated as usual.

If the argument is nonnegative, the returned result will be equal to bits, otherwise, the result will be equal to 2^64 + bits.

To represent decimal constants less than 2^63, consider valueOf(long) instead.

Since:

14.0

valueOf

@CanIgnoreReturnValue
public static UnsignedLong valueOf(long value)

Returns an UnsignedLong representing the same value as the specified long.

Throws:

IllegalArgumentException - if value is negative

Since:

14.0

valueOf

@CanIgnoreReturnValue
public static UnsignedLong valueOf(BigInteger value)

Returns a UnsignedLong representing the same value as the specified BigInteger. This is the inverse operation of bigIntegerValue().

Throws:

IllegalArgumentException - if value is negative or value >= 2^64

valueOf

@CanIgnoreReturnValue
public static UnsignedLong valueOf(String string)

Returns an UnsignedLong holding the value of the specified String, parsed as an unsigned long value.

Throws:

NumberFormatException - if the string does not contain a parsable unsigned long value

valueOf

@CanIgnoreReturnValue
public static UnsignedLong valueOf(String string,
 int radix)

Returns an UnsignedLong holding the value of the specified String, parsed as an unsigned long value in the specified radix.

Throws:

NumberFormatException - if the string does not contain a parsable unsigned long value, or radix is not between Character.MIN_RADIX and Character.MAX_RADIX

plus

public UnsignedLong plus(UnsignedLong val)

Returns the result of adding this and val. If the result would have more than 64 bits, returns the low 64 bits of the result.

Since:

14.0

minus

public UnsignedLong minus(UnsignedLong val)

Returns the result of subtracting this and val. If the result would have more than 64 bits, returns the low 64 bits of the result.

Since:

14.0

times

public UnsignedLong times(UnsignedLong val)

Returns the result of multiplying this and val. If the result would have more than 64 bits, returns the low 64 bits of the result.

Since:

14.0

dividedBy

public UnsignedLong dividedBy(UnsignedLong val)

Returns the result of dividing this by val.

Since:

14.0

mod

public UnsignedLong mod(UnsignedLong val)

Returns this modulo val.

Since:

14.0

intValue

public int intValue()

Returns the value of this UnsignedLong as an int.

Specified by:

intValue in class Number

longValue

public long longValue()

Returns the value of this UnsignedLong as a long. This is an inverse operation to fromLongBits(long).

Note that if this UnsignedLong holds a value >= 2^63, the returned value will be equal to this - 2^64.

Specified by:

longValue in class Number

floatValue

public float floatValue()

Returns the value of this UnsignedLong as a float, analogous to a widening primitive conversion from long to float, and correctly rounded.

Specified by:

floatValue in class Number

doubleValue

public double doubleValue()

Returns the value of this UnsignedLong as a double, analogous to a widening primitive conversion from long to double, and correctly rounded.

Specified by:

doubleValue in class Number

bigIntegerValue

public BigInteger bigIntegerValue()

Returns the value of this UnsignedLong as a BigInteger.

compareTo

public int compareTo(UnsignedLong o)

Specified by:

compareTo in interface Comparable<UnsignedLong>

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(@Nullable Object obj)

Overrides:

equals in class Object

toString

public String toString()

Returns a string representation of the UnsignedLong value, in base 10.

Overrides:

toString in class Object

toString

public String toString(int radix)

Returns a string representation of the UnsignedLong value, in base radix. If radix < Character.MIN_RADIX or radix > Character.MAX_RADIX, the radix 10 is used.