Answer:
Operator overloading is a type of polymorphism in which an operator is overloaded to give user defined meaning to it. It is used to perform operation on user-defined data type.
Following program is overloading unary operators: increment (++) and decrement (--).
#include<iostream>
using namespace std;
class IncreDecre
{
int a, b;
public:
void accept()
{
cout<<"\n Enter Two Numbers : \n";
cout<<" ";
cin>>a;
cout<<" ";
cin>>b;
}
void operator--() //Overload Unary Decrement
{
a--;
b--;
}
void operator++() //Overload Unary Increment
{
a++;
b++;
}
void display()
{
cout<<"\n A : "<<a;
cout<<"\n B : "<<b;
}
};
int main()
{
IncreDecre id;
id.accept();
--id;
cout<<"\n After Decrementing : ";
id.display();
++id;
++id;
cout<<"\n\n After Incrementing : ";
id.display();
return 0;
}
Output:
