#include <iostream>
using namespace std;

class A
{
public:
    A(const char *fun_name, int b, int c, int d, int e = 200) :
        fun_name(fun_name),
        b(b),
        c(c),
        d(d),
        e(e)
    {}

    ~A()
    {
        cout << "Destructed (called from " << fun_name << ")\n";
    }

    const char *fun_name;
    int b;
    int c;
    int d;
    int e;
};

int fun1(const A *a)
{
    return a->b + a->c + a->d + a->e;
}

int fun2(const A &a)
{
    return a.b + a.c + a.d + a.e;
}

int main()
{
    // Usando função com ponteiro
    // cout << fun1(&A(3, 6, 9)) << "\n"; // error: taking address of temporary

    A a("fun1", 3, 6, 9);
    cout << fun1(&a) << "\n";
    cout << "fun1 ended\n";

    // Usando função com referência constante
    cout << fun2(A("fun2", 3, 6, 9)) << "\n";
    cout << "fun2 ended\n";

    return 0;
}