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 ^                       Bitwise Exclusive OR Operator (XOR)

 exp1 ^ exp2            Bitwise exclusive OR
 exp1, exp2              any integral expression

    The ^ operator performs a bit-by-bit exclusive OR (aka XOR)
    operation on exp1 and exp2.  (In an exclusive OR, a bit of the result
    is true if either one of the corresponding bits of exp1 or exp2 is
    true; the result is false if both corresponding bits are true or both
    bits are false.)  Example:

           i = 0x0FF0;
           j = 0xFF00;
           k = i ^ j;          /* k == 0xF0F0 */