[Boost-users] Re: Re: serialization

From: Robert Ramey (ramey_at_[hidden])
Date: 2005-04-03 15:55:32

Hmm, are we serializing through a base class or a derived class?  If through
a base class has the derived class been "registered" via register(..) or via
BOOST_CLASS_EXPORT?

Robert Ramey

Damien * wrote:
>> Damien * wrote:
>>> has anyone seen this compile error before, and know how to fix it?
>>>
>>> /usr/local/include/boost-1_32/boost/archive/detail/iserializer.hpp:428:
>>> no type named `type' in `struct
>> boost::mpl::eval_if<boost::is_abstract<MyClass>,
>>>
>>
boost::mpl::identity<boost::archive::detail::load_pointer_type<boost::archiv
e::text_iarchive,
>>> MyClass*>::abstract<MyClass> >,
>>>
>>
boost::mpl::identity<boost::archive::detail::load_pointer_type<boost::archiv
e::text_iarchive,
>>> MyClass*>::non_abstract<MyClass> > >'
>>>
>>> im trying to serialize a polymorphic class that has a pointer to
>>> another class of the same type in it. if i comment out that line in
>>> the serialization function, the error goes away.
>
>> is MyClass abstract? That is, does it have a pure abstract function
>> in it ( func() = 0;)?  Check BOOST_IS_ABSTRACT in the documentation.
>>
>> Robert Ramey
>
> MyClass is not abstract. it has virtual functions, but no pure virtual
> functions. if i use that macro however, the error goes away, but i
> then get this runtime assertion failure when it tries to serialize
> out.
>
> /usr/local/include/boost-1_32/boost/archive/detail/oserializer.hpp:432:
> static void boost::archive::detail::save_pointer_type<Archive,
> TPtr>::polymorphic<T>::save(Archive&, const T&, const
> boost::archive::detail::basic_pointer_oserializer*) [with T = MyClass,
> Archive = boost::archive::binary_oarchive, TPtr = MyClass*]: Assertion
> `__null != bpos_ptr' failed.