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^= Operator (C# Reference)

Visual Studio 2008

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The exclusive-OR assignment operator.

Remarks

An expression of the form

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x ^= y

is evaluated as

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x = x ^ y

except that x is only evaluated once. The ^ operator performs a bitwise exclusive-OR operation on integral operands and logical exclusive-OR on bool operands.

The ^= operator cannot be overloaded directly, but user-defined types can overload the ^ operator (see operator).

Example

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class XORAssignment
{
    static void Main()
    {
        int a = 0x0c;
        a ^= 0x06;
        Console.WriteLine("0x{0:x8}", a);
        bool b = true;
        b ^= false;
        Console.WriteLine(b);
    }
}
/*
Output:
0x0000000a
True
*/

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FAQ

points to not operator

when this page mentions that it cannot overload ^= it says that ! can be overloaded, shouldn't this be the ^ operator instead?

History

7/24/2009
Charles Lambert

^= Operator (C# Reference)

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