Two pointers pointing to the same address

Question

What happens when two pointers are pointing to the same address? Is this going to cause a security problem?

Accepted Answer

The fact itself is ok, but you'll run into undefined behavior if you call `delete` on one of the pointers and attempt to use the other afterwards:

```
int* x = new int(5);
int* y = x;
delete x;
//y is a dangling pointer
```

If you run into a situation where you have to use multiple pointers to the same memory address, you should look into smart pointers.

Solution