Increment operator in C++ is used to increase the value of a variable by 1 or some other fixed interval. normally it is used in loops. Now increment operator overloading is used for our self-defined variables or classes in C++, the code is given below:
//Increment operator overloading in C++
#include<iostream>
using namespace std;
class point{
private:
int x,y;
public:
point()
{
x =0;
y = 0;
}
friend ostream&operator<< (ostream& cin, point& z){
cin<<z.x<<" "<<z.y<<endl;
return cin;
}
friend istream&operator>>(istream& a, point& z)
{
a>>z.x;
a>>z.y;
return a;
}
friend point&operator ++(point& a)
{
a.x++;
a.y++;
return a;
}
};
int main(){
point n;
cin>>n;
cout<<n++;
}
In the above code we defined our own point class, we overloaded stream insertion and extraction operators, In the increment operator overloading function we get a point variable as an argument and then selected each data member of the point object and incremented it and returned a whole point variable