basically this is just two things: a) a cast of the reference to the current class to the base class b) an invocation of void_cast to register the relationship between the base and derived classes. This latter is used in handling polymorphic pointers. So you'll have to make your own macro of just insert code which uses something other than the "this" pointer. For more information - look at the definition of the macro and the documentaion. Robert Ramey Deane Yang wrote:

How do I do:

BOOST_SERIALIZATION_BASE_OBJECT_NVP(my_base_class)

in a non-intrusive serialize function?