Re: [Boost-users] [serialization] bpos_ptrNULL inbasic_oarchive_impl::save_pointer

On May 20, 2006, at 13:07, Robert Ramey wrote:

Hugh Hoover wrote:

...

should ALWAYS get back a valid bpos_ptr at this point?

I don't think so. It looks to me that a NULL bpos_ptr signfies an abstract class. and its not a mistake to serialize an abstract class - (the system calls the actual derived classes).

Ah - ok... then perhaps down further, like in oserializer::save_pointer where it's trying to dereference the bpos_ptr, assuming it has a valid one?

I'm not sure which compiler your using - but some implement is_abstract

gcc4 and vc8

correctly - obviating the need for BOOST_IS_ABSTRACT. Maybe that's helpful.

I can try checking if they're correct already and just drop my usage of BOOST_IS_ABSTRACT.