Re: [Boost-users] enable_shared_from_this & inheritance

From: Alex Ott (alexott_at_[hidden])
Date: 2006-10-17 07:35:40

yes, thanks

On 10/17/06, Johan Nilsson <r.johan.nilsson_at_[hidden]> wrote:
> 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
>
>
>
>
>
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-- 
With best wishes,                    Alex Ott, MBA
http://alexott.blogspot.com/
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