Re: [boost] Re: downcasting smart pointers

From: Beman Dawes (bdawes_at_[hidden])
Date: 2001-07-12 12:37:11

At 04:46 AM 7/12/2001, martinschuerch_at_[hidden] wrote:
 >--- In boost_at_y..., "Greg Colvin" <gcolvin_at_u...> wrote:
 >> From: Kevlin Henney <kevlin_at_c...>
 >> > In message <073401c0b04d$7c592040$37781990_at_u...>, Greg Colvin
 >> > <gcolvin_at_u...> writes
 >> > >From: Kevlin Henney <kevlin_at_c...>
 >> > >> I may be mistaken, but I thought it had been discussed and
 >possible code
 >> > >> samples had been posted some time back -- something like
 >> > >> dynamic_shared_cast.
 >> > >
 >> > >Yes, but that's as far as it got.  I think the name was
 >> > >do_dynamic_cast, and it was supposed to work with both raw
 >> > >and smart pointers.   Now that we have boost/cast.hpp we
 >> > >have a home for such a beast, and could do worse than just
 >> > >implementing a polymorphic_cast for shared_ptr.
 >> >
 >> > Yes, I vaguely recall now.
 >> >
 >> > I presume you are suggesting a polymorphic_cast definition just
 >after
 >> > the definition of shared_ptr, rather than coupling the two headers
 >> > together?
 >>
 >> Sounds like a plan.
 >
 >I would very appreciate some downcast of shared_ptr in boost. At the
 >moment I'm using a hack similar as posted in related mails. But for a
 >proper solution there has to be some support of shared_ptr.
 >
 >Is there any work in progress for this subject?

Why don't you post suggested code?

Thanks,

--Beman