[boost] Re: [serialization] register_type and dll/so module

From: Vladimir Prus (ghost_at_[hidden])
Date: 2004-04-16 01:04:17

Li Lirong wrote:

> Hi,
> 
> In the serialization library, when classes are never serialized directly
> but rather through a pointer to the base class, the user need to call
> register_type so that the archive contains information about the derived
> classes.
> 
> However, sometimes those derived classes are implemented in another
> dynamic loaded (dll/so) module.  The type of the derived classes will
> not be known at compile time.  How can cope with this?  Does the library
> provide any facilities to help the user in this situation?

There's BOOST_CLASS_EXPORT. Take a look at  
http://www.rrsd.com/boost/libs/serialization/doc/traits.html#export

In a previous version there were some problems with it, but at least for
text_archives it worked. Robert might have fixed those problems though.

- Volodya