operatorOverloading.cpp

#include <iostream>
using namespace std;

class space
{
    int x, y, z;

public:
    void getdata(int a, int b, int c);
    void display();
    void operator-();
};

void space::getdata(int a, int b, int c)
{
    x = a;
    y = b;
    z = c;
}

void space::display()
{
    cout << "x = " << x;
    cout << "\ny = " << y;
    cout << "\nz = " << z << "\n";
}

void space::operator-()
{
    x = -x;
    y = -y;
    z = -z;
}

int main()
{
    space s;
    s.getdata(10, -20, 30);
    cout << "s : \n";
    s.display();
    -s;
    cout << "-s : \n";
    s.display();
    return 0;
}