Sub Swap (Var1, Var2) Var1 = Var1 Xor Var2 Var2 = Var2 Xor Var1 Var1 = Var1 Xor Var2 End Sub
See: Xor swap algorithm
... period of time without a legitimate basis of authority. The first to have the title of "Tyrant" was Pisistratus in 560 BC. In modern times Tyrant has come to mean a ...