Overloading the unary minus operator by using member function

Overloading the unary minus operator by using member function

overloading the unary minus operator is as shown below :

<header files>

class A

{

int x;

public:

A(int=0);

A operator –();

};

A A :: operator –()

{

return A(-x);

}

/*end of A .cpp*/

void main()

{

int y;

A a1, a2;

cout<<”Enter the value of y”;

cin>>y;

a2.x=y;

a1= -a2;

cout<<a1.x

}

operator overloading

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friend function