// client code that manipulates rational objects

#include <iostream>
#include <string>
#include "rational.h"

using namespace std;

int main() {
    rational r1(3, 4), r2(5), r3;
    cout << "r1 = " << r1 << ", r2 = " << r2 << ", r3 = " << r3 << endl;
    cout << endl;

    rational r4(6, -16);
    cout << "r4 = " << r4 << endl;
    cout << endl;

    cout << "r1 = " << r1 << ", r2 = " << r2 << ", r3 = " << r3 << endl;
    r1 -= r4;
    r2 -= r4;
    r3 -= r4;
    cout << "r1 = " << r1 << ", r2 = " << r2 << ", r3 = " << r3 << endl;
    cout << endl;

    r3 = r1 -= r2;
    // operator=(r3, operator-=(r1, r2)
    cout << "r1 = " << r1 << ", r2 = " << r2 << ", r3 = " << r3 << endl;
    cout << endl;

    int x = 3, y = 7;
    y = x -= 1;
    cout << "x = " << x << ", y = " << y << endl;
    int z = x - y;
    cout << endl;

    r4 = r1 - r3;
    cout << "now r4 = " << r4 << endl;
    cout << endl;

    // the following line of code threw an exception
    // rational r5(3, 0);
    // cout << r5 << endl;

    rational r5(r3);
    if (r5 == r3) {
        cout << "r5 and r3 equal" << endl;
    } else {
        cout << "r5 and r3 not equal" << endl;
    }
    if (r1 == r2) {
        cout << "r1 and r2 equal" << endl;
    } else {
        cout << "r1 and r2 not equal" << endl;
    }
    cout << endl;

    cout << "r1 = " << r1 << ", r2 = " << r2 << ", r3 = " << r3 << endl;
    cout << "r1 <= r2  = " << (r1 <= r2) << endl;
    cout << "r1 <= r3  = " << (r1 <= r3) << endl;
    cout << "r2 <= r3  = " << (r2 <= r3) << endl;
    cout << endl;

    return 0;
}