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Xor swap algorithm/Visual basic code

The following Visual Basic subroutine swaps the values of its parameters using the xor operator.

 Sub Swap (Var1, Var2)
    Var1 = Var1 Xor Var2
    Var2 = Var2 Xor Var1
    Var1 = Var1 Xor Var2
 End Sub

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