Re: [Boost-users] enable_shared_from_this & inheritance

From: Johan Nilsson (r.johan.nilsson_at_[hidden])
Date: 2006-10-17 03:34:20

Alex Ott wrote:
> Hello all
> 
> I have one problem with enable_shared_from_this - i have one Base
> class, that inherit from enable_shared_from_this<Base>. But i also
> need to do shared_from_this from classes inherited from Base class.
> Without explicit inheritance from enable_shared_from_this for Derived
> code fail, but when i do enable_shared_from_this<Derived>, my code
> fail with "error: reference to 'shared_from_this' is ambiguous"
> How i can resolve this issue?

Do you mean something like this?

---------

#include <boost/enable_shared_from_this.hpp>

struct A
    : boost::enable_shared_from_this<A>
{};

struct B
    : A
    , boost::enable_shared_from_this<B>
{
    boost::shared_ptr<B> FooB()
    {
        return boost::enable_shared_from_this<B>::shared_from_this();
    }

    boost::shared_ptr<A> FooA()
    {
        return boost::enable_shared_from_this<A>::shared_from_this();
    }
};

------------

HTH // Johan