Re: [boost] enable_shared_from_this2

Subject: Re: [boost] enable_shared_from_this2
From: Frank Mori Hess (fmhess_at_[hidden])
Date: 2009-11-02 19:09:10

On Wednesday 28 October 2009, Peter Dimov wrote:
> Frank Mori Hess wrote:
> > I've commited boost/smart_ptr/enabled_shared_from_raw.hpp to trunk (I
> > svn moved enable_shared_from_this2.hpp).
>
> So long as we're innovating, consider adding weak_from_raw as well. It
> can give you an expired weak_ptr to 'this' from within a destructor,
> which is useful for deregistration.
>

I think that would require an aliasing constructor for weak_ptr, or friend 
access to weak_ptr.  Perhaps a modification of 
weak_ptr::_internal_assign(), which no longer seems to be used?