BitVector32.Section Structure

.NET Framework (current version)

Represents a section of the vector that can contain an integer number.

Namespace: System.Collections.Specialized
Assembly: System (in System.dll)

Syntax

Public Structure Section

Properties

	Name	Description
	Mask	Gets a mask that isolates this section within the BitVector32.
	Offset	Gets the offset of this section from the start of the BitVector32.

Methods

	Name	Description
	Equals(Object)	Determines whether the specified object is the same as the current BitVector32.Section object.(Overrides ValueType.Equals(Object).)
	Equals(BitVector32.Section)	Determines whether the specified BitVector32.Section object is the same as the current BitVector32.Section object.
	GetHashCode()	Serves as a hash function for the current BitVector32.Section, suitable for hashing algorithms and data structures, such as a hash table.(Overrides ValueType.GetHashCode().)
	GetType()	Gets the Type of the current instance.(Inherited from Object.)
	ToString()	Returns a string that represents the current BitVector32.Section.(Overrides ValueType.ToString().)
	ToString(BitVector32.Section)	Returns a string that represents the specified BitVector32.Section.

Operators

	Name	Description
	Equality(BitVector32.Section, BitVector32.Section)	Determines whether two specified BitVector32.Section objects are equal.
	Inequality(BitVector32.Section, BitVector32.Section)	Determines whether two BitVector32.Section objects have different values.

Use CreateSection to define a new section. A BitVector32.Section is a window into the BitVector32 and is composed of the smallest number of consecutive bits that can contain the maximum value specified in CreateSection. For example, a section with a maximum value of 1 is composed of only one bit, whereas a section with a maximum value of 5 is composed of three bits. You can create a BitVector32.Section with a maximum value of 1 to serve as a Boolean, thereby allowing you to store integers and Booleans in the same BitVector32.

Examples

The following code example uses a BitVector32 as a collection of sections.

C++

Imports System
Imports System.Collections.Specialized

Public Class SamplesBitVector32

   Public Shared Sub Main()

      ' Creates and initializes a BitVector32.
      Dim myBV As New BitVector32(0)

      ' Creates four sections in the BitVector32 with maximum values 6, 3, 1, and 15.
      ' mySect3, which uses exactly one bit, can also be used as a bit flag.
      Dim mySect1 As BitVector32.Section = BitVector32.CreateSection(6)
      Dim mySect2 As BitVector32.Section = BitVector32.CreateSection(3, mySect1)
      Dim mySect3 As BitVector32.Section = BitVector32.CreateSection(1, mySect2)
      Dim mySect4 As BitVector32.Section = BitVector32.CreateSection(15, mySect3)

      ' Displays the values of the sections.
      Console.WriteLine("Initial values:")
      Console.WriteLine(ControlChars.Tab + "mySect1: {0}", myBV(mySect1))
      Console.WriteLine(ControlChars.Tab + "mySect2: {0}", myBV(mySect2))
      Console.WriteLine(ControlChars.Tab + "mySect3: {0}", myBV(mySect3))
      Console.WriteLine(ControlChars.Tab + "mySect4: {0}", myBV(mySect4))

      ' Sets each section to a new value and displays the value of the BitVector32 at each step.
      Console.WriteLine("Changing the values of each section:")
      Console.WriteLine(ControlChars.Tab + "Initial:    " + ControlChars.Tab + "{0}", myBV.ToString())
      myBV(mySect1) = 5
      Console.WriteLine(ControlChars.Tab + "mySect1 = 5:" + ControlChars.Tab + "{0}", myBV.ToString())
      myBV(mySect2) = 3
      Console.WriteLine(ControlChars.Tab + "mySect2 = 3:" + ControlChars.Tab + "{0}", myBV.ToString())
      myBV(mySect3) = 1
      Console.WriteLine(ControlChars.Tab + "mySect3 = 1:" + ControlChars.Tab + "{0}", myBV.ToString())
      myBV(mySect4) = 9
      Console.WriteLine(ControlChars.Tab + "mySect4 = 9:" + ControlChars.Tab + "{0}", myBV.ToString())

      ' Displays the values of the sections.
      Console.WriteLine("New values:")
      Console.WriteLine(ControlChars.Tab + "mySect1: {0}", myBV(mySect1))
      Console.WriteLine(ControlChars.Tab + "mySect2: {0}", myBV(mySect2))
      Console.WriteLine(ControlChars.Tab + "mySect3: {0}", myBV(mySect3))
      Console.WriteLine(ControlChars.Tab + "mySect4: {0}", myBV(mySect4))

   End Sub 'Main 

End Class 'SamplesBitVector32


' This code produces the following output.
'
' Initial values:
'        mySect1: 0
'        mySect2: 0
'        mySect3: 0
'        mySect4: 0
' Changing the values of each section:
'        Initial:        BitVector32{00000000000000000000000000000000}
'        mySect1 = 5:    BitVector32{00000000000000000000000000000101}
'        mySect2 = 3:    BitVector32{00000000000000000000000000011101}
'        mySect3 = 1:    BitVector32{00000000000000000000000000111101}
'        mySect4 = 9:    BitVector32{00000000000000000000001001111101}
' New values:
'        mySect1: 5
'        mySect2: 3
'        mySect3: 1
'        mySect4: 9

Version Information

Universal Windows Platform
Available since 10
.NET Framework
Available since 1.1

Thread Safety

Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.