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BitArray.Or Method

Performs the bitwise OR operation on the elements in the current BitArray against the corresponding elements in the specified BitArray.

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

public BitArray Or(
	BitArray value
)

Parameters

value
Type: System.Collections.BitArray

The BitArray with which to perform the bitwise OR operation.

Return Value

Type: System.Collections.BitArray
The current instance containing the result of the bitwise OR operation on the elements in the current BitArray against the corresponding elements in the specified BitArray.

ExceptionCondition
ArgumentNullException

value is null.

ArgumentException

value and the current BitArray do not have the same number of elements.

The bitwise OR operation returns true if one or both operands are true, and returns false if both operands are false.

This method is an O(n) operation, where n is Count.

The following code example shows how to apply OR to two BitArray instances.

 using System;
 using System.Collections;
 public class SamplesBitArray  {

    public static void Main()  {

       // Creates and initializes two BitArrays of the same size.
       BitArray myBA1 = new BitArray( 4 );
       BitArray myBA2 = new BitArray( 4 );
       myBA1[0] = myBA1[1] = false;
       myBA1[2] = myBA1[3] = true;
       myBA2[0] = myBA2[2] = false;
       myBA2[1] = myBA2[3] = true;

       // Performs a bitwise OR operation between BitArray instances of the same size.
       Console.WriteLine( "Initial values" );
       Console.Write( "myBA1:" );
       PrintValues( myBA1, 8 );
       Console.Write( "myBA2:" );
       PrintValues( myBA2, 8 );
       Console.WriteLine();

       Console.WriteLine( "Result" );
       Console.Write( "OR:" );
       PrintValues( myBA1.Or( myBA2 ), 8 );
       Console.WriteLine();

       Console.WriteLine( "After OR" );
       Console.Write( "myBA1:" );
       PrintValues( myBA1, 8 );
       Console.Write( "myBA2:" );
       PrintValues( myBA2, 8 );
       Console.WriteLine();

       // Performing OR between BitArray instances of different sizes returns an exception. 
       try  {
          BitArray myBA3 = new BitArray( 8 );
          myBA3[0] = myBA3[1] = myBA3[2] = myBA3[3] = false;
          myBA3[4] = myBA3[5] = myBA3[6] = myBA3[7] = true;
          myBA1.Or( myBA3 );
       } catch ( Exception myException )  {
          Console.WriteLine("Exception: " + myException.ToString());
       }
    }


    public static void PrintValues( IEnumerable myList, int myWidth )  {
       int i = myWidth;
       foreach ( Object obj in myList ) {
          if ( i <= 0 )  {
             i = myWidth;
             Console.WriteLine();
          }
          i--;
          Console.Write( "{0,8}", obj );
       }
       Console.WriteLine();
    }

 }


 /* 
 This code produces the following output.

 Initial values
 myBA1:   False   False    True    True
 myBA2:   False    True   False    True

 Result
 OR:   False    True    True    True

 After OR
 myBA1:   False    True    True    True
 myBA2:   False    True   False    True

 Exception: System.ArgumentException: Array lengths must be the same.
    at System.Collections.BitArray.Or(BitArray value)
    at SamplesBitArray.Main()
 */

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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