Re: [Boost-users] Problem using serialization::xml_archive withpolymrphic classes

Subject: Re: [Boost-users] Problem using serialization::xml_archive withpolymrphic classes
From: Robert Ramey (ramey_at_[hidden])
Date: 2010-09-02 18:18:28

przemyslaw.sliwa_at_[hidden] wrote:
> Thanks for reply,
> 
> All classes a, b, c and d are actually defined within one dll (one
> module). I forgot to mention it. 
> I can do this following thing:
> 
> d* pD = mew d();
> 
> and then
> ar & boost::serialization::make_nvp("item", pD);
> 
> but
> c* pD = new D();
> ar & boost::serialization::make_nvp("item", pD);
> 
> does not work at all! It throws this strange type of exceptions which
> I cannot handle at all. 

This should work if d is exported BOOST_SERIALIZATION_EXPORT(d)

> Another problem is that if I do the first version the member m_key
> variable of true_type in the call 
> 
> const boost::serialization::extended_type_info * true_type =
>                 i.get_derived_extended_type_info(t);

again This should work if d is exported BOOST_SERIALIZATION_EXPORT(d)

Robert Ramey