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

From: Hugh Hoover (hugh_at_[hidden])
Date: 2006-05-20 20:28:06

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.