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Operator Overloading and Type Conversions 187, , * seus consider the unary minus operator. A minus operator when used as @ unary, takes just one, ‘We know that this operator changes the sign of an operand when applied to a basic data, , seg, fon oh es hare fend © cverions is Spacey et 8 can be applied io an olect hn nerdithe, ss ‘as is applied to an Int or float variable. The unary minus when applied to an abject should

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seen how to overload an unary operator. The same mechanism can be used to overpea ere ee ree noe cag» Hons, , ! we have just, goad a binary, sunation. A, , = sumta, BYF // functional notation., , ‘was used. The functional notation can be replaced by @ natural looking expression, , c=A+ 8; // arithmetic notation, , _ py overloading the + operator using an operator+() function. The Program 7.2 illustrates how this is