Hmmm. I was almost thinking the same thing, but I was hoping there was something I was missing.

What about boost::variant? Can I stuff that into a queue in shared memory?

---
Aaron Wright




From:        Ion Gaztañaga <igaztanaga@gmail.com>
To:        Boost User List <boost-users@lists.boost.org>
Date:        04/03/2012 02:30 PM
Subject:        Re: [Boost-users] [Interprocess] Collection of base shared_ptr
Sent by:        boost-users-bounces@lists.boost.org

---

El 03/04/2012 21:18, Aaron_Wright@selinc.com escribió:
> I'm using Boost 1.49, and Visual Studio 10.
>
> I'm having a hard time figuring out how to store a shared_ptr to a
> derived class in a collection of shared_ptr to the base class. This
> is something I do all the time with normal shared pointers. This is
> my code:

You can't do that. In shared memory there is no place for virtuality (so
no room for virtual destructors essential to be able to use derived
classes). boost::interproces::shared_ptr is only for reference counted
semantics.

Best,

Ion
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