Re: [Boost-users] [boost::enable_shared_from_this] in inheritancetreethrows bad_weak_ptr exception

From: Andrew Holden (aholden_at_[hidden])
Date: 2007-10-02 14:11:13

Peter Dimov wrote:
> In this case, you can use
> 
> struct B : A
> {
>     shared_ptr<B> getB()
>     {
>         return dynamic_pointer_cast<B>( shared_from_this() );     }
> };
> 
> after making A polymorphic.

Is there any reason you couldn't use static_pointer_cast?  You know for
a fact that the cast to B will work, as getB is a member function of B.
I think this will also remove the need to make A polymorphic.