Re: [boost] Re: [policy_ptr] multi-inheritance failure

From: Peter Dimov (pdimov_at_[hidden])
Date: 2003-12-12 08:57:20

David B. Held wrote:

> Let's look at this carefully...p is basicallly a super2*, while
> q is basically a child_mi*.  We create a new child_mi,
> transfer it to q, then copy q to p.  We then let q go out of
> scope, so p gets to delete it.  So p attempts to delete a
> super2* which is pointing to a child_mi object.  If p were
> omniscient (or even just psychic),

... or a shared_ptr, IIUC,

> it could know that p is really pointing to a derived object.