Unary plus operator overloading using friend function

Unary plus  operator overloading using friend function:

<header files>

class A

{

int x;

A(int=0);

public:

friend A operator +(const A&);

};

A  operator +(const A& Aobj)

{

return A(+A obj .x);

}

operator overloading

Over loading increement and decreement operators:

Over loading relational operators

friend function