What happens in C++ when I pass an object by reference and it goes out of scope?

Question

I think this question is best asked with a small code snippet I just wrote:

#include 

using namespace std;

class BasicClass
{
public:
    B         


        

Answer 1

When you store a reference to an object that has ended its lifetime, accessing it is undefined behavior. So anything can happen, it can work, it can fail, it can crash, and as it appears I like to say it can order a pizza.