
xor(+Number1, +Number2, -Result)

   Evaluates the bitwise exclusive disjunction Number1 xor Number2 and unifies
the resulting value with Result.



Arguments
   Number1             Integer.
   Number2             Integer.
   Result              Output: integer.

Type
   Arithmetic

Description
   This predicate is used by the ECLiPSe compiler to expand evaluable
   arithmetic expressions.  So the call to xor(Number1, Number2, Result) is
   equivalent to

    Result is xor(Number1, Number2)

    which should be preferred for portability.

   In coroutining mode, if Number1 or Number2 are uninstantiated, the call
   to xor/3 is delayed until these variables are instantiated.




Modes and Determinism
   xor(+, +, -) is det

Exceptions
     4 --- Number1 or Number2 is not instantiated (non-coroutining mode    only).
     5 --- Number1 or Number2 is a number but not an integer.
    24 --- Number1 or Number2 is not of a numeric type.

Examples
   
Success:
    Result is xor(11, 7).		% gives Result = 12
    Result is xor(11, -7).     		% gives Result = -14

Error:
    Result is xor(6, 2.0).		% type error


See Also
   is / 2
