Mega Code Archive
Define -, + and = for the ThreeD class
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#include <iostream>
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; }
ThreeD operator+(ThreeD op2); // op1 is implied
ThreeD operator=(ThreeD op2); // op1 is implied
ThreeD operator-(ThreeD op2); // op1 is implied
void show() ;
};
// Overload subtraction.
ThreeD ThreeD::operator-(ThreeD op2)
{
ThreeD temp;
temp.x = x - op2.x;
temp.y = y - op2.y;
temp.z = z - op2.z;
return temp;
}
// Overload +.
ThreeD ThreeD::operator+(ThreeD op2)
{
ThreeD temp;
temp.x = x + op2.x;
temp.y = y + op2.x;
temp.z = z + op2.z;
return temp;
}
// Overload assignment.
ThreeD ThreeD::operator=(ThreeD op2)
{
x = op2.x;
y = op2.y;
z = op2.z;
return *this;
}
// Show X, Y, Z coordinates.
void ThreeD::show()
{
cout << x << ", ";
cout << y << ", ";
cout << z << "\n";
}
int main()
{
ThreeD a(1, 2, 3), b(10, 10, 10), c;
cout << "Original value of a: ";
a.show();
cout << "Original value of b: ";
b.show();
c = a - c;
cout << "a - c: ";
c.show();
cout << "\n";
return 0;
}
Original value of a: 1, 2, 3
Original value of b: 10, 10, 10
a - c: 1, 2, 3
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