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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 nullptr.

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 namespace System;
using namespace System::Collections;
void PrintValues( IEnumerable^ myList, int myWidth );
int main()
{

   // Creates and initializes two BitArrays of the same size.
   BitArray^ myBA1 = gcnew BitArray( 4 );
   BitArray^ myBA2 = gcnew BitArray( 4 );
   myBA1[ 0 ] = false;
   myBA1[ 1 ] = false;
   myBA1[ 2 ] = true;
   myBA1[ 3 ] = true;
   myBA2[ 0 ] = false;
   myBA2[ 1 ] = true;
   myBA2[ 2 ] = false;
   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 = gcnew BitArray( 8 );
      myBA3[ 0 ] = false;
      myBA3[ 1 ] = false;
      myBA3[ 2 ] = false;
      myBA3[ 3 ] = false;
      myBA3[ 4 ] = true;
      myBA3[ 5 ] = true;
      myBA3[ 6 ] = true;
      myBA3[ 7 ] = true;
      myBA1->Or( myBA3 );
   }
   catch ( Exception^ myException ) 
   {
      Console::WriteLine( "Exception: {0}", myException );
   }

}

void PrintValues( IEnumerable^ myList, int myWidth )
{
   int i = myWidth;
   IEnumerator^ myEnum = myList->GetEnumerator();
   while ( myEnum->MoveNext() )
   {
      Object^ obj = safe_cast<Object^>(myEnum->Current);
      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: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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