Operator_Overloading

//example for solo.learn c++ course
#include <iostream>
using namespace std;

class Queue {
    int size;
    int* queue;

    public:
    Queue() {
        size = 0;
        queue = new int[100];
    }
    void add(int data) {
        queue[size] = data;
        size++;
    }
    void remove() {
        if (size == 0) {
            cout << "Queue is empty"<<endl;
            return;
        }
        else {
            for (int i = 0; i < size - 1; i++) {
                queue[i] = queue[i + 1];
            }
            size--;
        }
    }
    void print() {
        if (size == 0) {
            cout << "Queue is empty"<<endl;
            return;
        }
        for (int i = 0; i < size; i++) {
            cout<<queue[i]<<" <- ";
        }
        cout << endl;
    }

 Queue operator+(Queue &cola)
    {
    Queue aux;
    aux.size = this->size;
    aux.queue = this->queue;
    for (int i=0;i<cola.size;i++)
    {
        aux.add(cola.queue[i]);
    }
    return aux;

}
};

int main() {
    Queue q1;
    q1.add(42); q1.add(2); q1.add(8);  q1.add(1);
    Queue q2;
    q2.add(3); q2.add(66); q2.add(128);  q2.add(5);
    Queue q3 = q1+q2;
    q3.print();

    return 0;
}