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User-Defined Overloaded Operators

• Nearly all programming languages have overloaded operators

• Users can further overload operators in C++ and Ada (not carried over into Java)

• Ada Example (where Vector_Type is an array of Integers):

    function "*"(a, b : in Vector_Type) return Integer is
        sum : Integer := 0;
    begin
        for index in a'range loop
            sum := sum + a(index) * b(index);
        end loop;
        return sum;
    end "*";

• Are user-defined overloaded operators good or bad?