valarray::operator^=

Obtains the element-wise exclusive logical or operator (XOR) of an array with either a specified valarray or a value of the element type.

valarray<Type>& operator|=(
   const valarray<Type>& _Right
);
valarray<Type>& operator|=(
   const Type& _Right
);

Parameters

• _Right
  The valarray or value of an element type identical to that of the operand valarray that is to be combined, element-wise, by the exclusive logical XOR with the operand valarray.

Return Value

A valarray whose elements are the element-wise, exclusive logical XOR of the operand valarray and _Right.

Remarks

The exclusive logical or, referred to as XOR, has the following semantics: Given elements e1 and e2, e1 XOR e2 is true if exactly one of the elements is true; false if both elements are false or if both elements are true.

Example

// valarray_op_exor.cpp
// compile with: /EHsc
#include <valarray>
#include <iostream>

int main( )
{
   using namespace std;
   int i;

   valarray<int> vaL ( 10 ), vaR ( 10 );
   for ( i = 0 ; i < 10 ; i += 2 )
      vaL [ i ] =  1;
   for ( i = 1 ; i < 10 ; i += 2 )
      vaL [ i ] =  0;
   for ( i = 0 ; i < 10 ; i += 3 )
      vaR [ i ] =  i;
   for ( i = 1 ; i < 10 ; i += 3 )
      vaR [ i ] =  i-1;
   for ( i = 2 ; i < 10 ; i += 3 )
      vaR [ i ] =  i-1;
   
   cout << "The initial operand valarray is:  ( ";
      for (i = 0 ; i < 10 ; i++ )
         cout << vaL [ i ] << " ";
   cout << ")." << endl;

   cout << "The _Right valarray is: ( ";
      for ( i = 0 ; i < 10 ; i++ )
         cout << vaR [ i ] << " ";
   cout << ")." << endl;

   vaL ^= vaR;
   cout << "The element-by-element result of "
        << "the bitwise XOR operator^= is the\n valarray: ( ";
      for (i = 0 ; i < 10 ; i++ )
         cout << vaL [ i ] << " ";
   cout << ")." << endl;
}

The initial operand valarray is:  ( 1 0 1 0 1 0 1 0 1 0 ).
The _Right valarray is: ( 0 0 1 3 3 4 6 6 7 9 ).
The element-by-element result of the bitwise XOR operator^= is the
 valarray: ( 1 0 0 3 2 4 7 6 6 9 ).

Requirements

Header: <valarray>

Namespace: std

See Also

Concepts

valarray Class

valarray Members