Re: [Boost-users] [shared pointer] - question about different types pointing to the same object

6 Jun 2009


      On Saturday 06 June 2009, Robert Ramey wrote:
...
class base1 {
    virtual ~base1;
    ...
};
class derived1 : public base1
{
....
};
shared_ptr<derived1> pd1(new derived1)
shared_ptr<base1> pb1(pd);
? do pd1 and pb1 refer to the same object?
Yes, shared_ptr behaves pretty much the same as raw pointers.
...
class base2 {
    virtual ~base2;
    ...
};
class derived3 : public base1, public base2 {
    ...
};
shared_ptr<base2> pb2(pd1);
? do pb1 and pb2 refer to the same object?
No, that wouldn't compile as base2 is not a base class of derived1.

Re: [Boost-users] [shared pointer] - question about different types pointing to the same object

Frank Mori Hess