#include
using namespace std;
class ThreeD {
int x, y, z;
public:
ThreeD() { x = y = z = 0; }
ThreeD(int i, int j, int k) { x = i; y = j; z = k; }
friend ThreeD operator+(ThreeD op1, int op2);
friend ThreeD operator+(int op1, ThreeD obp);
void show() ;
} ;
// This allows ThreedD + int
ThreeD operator+(ThreeD op1, int op2)
{
ThreeD temp;
temp.x = op1.x + op2;
temp.y = op1.y + op2;
temp.z = op1.z + op2;
return temp;
}
// This allows int + ThreedD
ThreeD operator+(int op1, ThreeD op2)
{
ThreeD temp;
temp.x = op2.x + op1;
temp.y = op2.y + op1;
temp.z = op2.z + op1;
return temp;
}
// Show X, Y, Z coordinates.
void ThreeD::show()
{
cout << x << ", ";
cout << y << ", ";
cout << z << "\n";
}
int main()
{
ThreeD a(1, 2, 3), b;
cout << "Original value of a: ";
a.show();
cout << "\n";
b = a + 10; // object + integer
cout << "Value of b after b = a + 10: ";
b.show();
cout << "\n";
b = 10 + a; // integer + object
cout << "Value of b after b = 10 + a: ";
b.show();
return 0;
}
Original value of a: 1, 2, 3
Value of b after b = a + 10: 11, 12, 13
Value of b after b = 10 + a: 11, 12, 13