Class CommonBits

Determines the maximum number of common most-significant bits in the mantissa of one or numbers. Can be used to compute the double-precision number which is represented by the common bits. If there are no common bits, the number computed is 0.0.

Inheritance

Object

CommonBits

Inherited Members

Object.Equals(Object)

Object.Equals(Object, Object)

Object.GetHashCode()

Object.GetType()

Object.MemberwiseClone()

Object.ReferenceEquals(Object, Object)

Object.ToString()

Namespace: NetTopologySuite.Precision

Assembly: NetTopologySuite.dll

Syntax

public class CommonBits

Properties

Common

Declaration

public double Common { get; }

Property Value

Type	Description
Double

Methods

Add(Double)

Declaration

public void Add(double num)

Parameters

Type	Name	Description
Double	num

GetBit(Int64, Int32)

Extracts the i'th bit of a bitstring.

Declaration

public static int GetBit(long bits, int i)

Parameters

Type	Name	Description
Int64	bits	The bitstring to extract from.
Int32	i	The bit to extract.

Returns

Type	Description
Int32	The value of the extracted bit.

NumCommonMostSigMantissaBits(Int64, Int64)

This computes the number of common most-significant bits in the mantissas of two double-precision numbers. It does not count the hidden bit, which is always 1. It does not determine whether the numbers have the same exponent - if they do not, the value computed by this function is meaningless.

Declaration

public static int NumCommonMostSigMantissaBits(long num1, long num2)

Parameters

Type	Name	Description
Int64	num1
Int64	num2

Returns

Type	Description
Int32	The number of common most-significant mantissa bits.

SignExpBits(Int64)

Computes the bit pattern for the sign and exponent of a double-precision number.

Declaration

public static long SignExpBits(long num)

Parameters

Type	Name	Description
Int64	num

Returns

Type	Description
Int64	The bit pattern for the sign and exponent.

ToString(Int64)

A representation of the Double bits formatted for easy readability

Declaration

public string ToString(long bits)

Parameters

Type	Name	Description
Int64	bits

Returns

Type	Description
String

ZeroLowerBits(Int64, Int32)

Zeroes the lower n bits of a bitstring.

Declaration

public static long ZeroLowerBits(long bits, int nBits)

Parameters

Type	Name	Description
Int64	bits	The bitstring to alter.
Int32	nBits	the number of bits to zero.

Returns

Type	Description
Int64	The zeroed bitstring.