Robert Ramey wrote:
I compiled this code with the change below. Uncomment one of the serialization functions.
Hmm. I still couldn't compile it with those changes. Here's the cpp file I tried to compile: error.cpp: #include <boost/serialization/base_object.hpp> #include <boost/archive/text_oarchive.hpp> #include <boost/archive/text_iarchive.hpp> //BASE class base { public: virtual void virt_func() = 0; }; BOOST_IS_ABSTRACT(base); //DERIVED class derived : public base { public: void virt_func() {} template<class Archive> void serialize(Archive& ar, const unsigned int version); }; #include <boost/serialization/export.hpp> BOOST_CLASS_EXPORT_GUID(derived,"derived") //MAIN int main() { return 0; } And when I try to compile it: $ g++ error.cpp -lboost_serialization /usr/include/boost/serialization/export.hpp: In static member function 'static void boost::archive::detail::guid_initializer<T>::export_register(const char*) [with T = derived]': /usr/include/boost/serialization/export.hpp:155: instantiated from 'boost::archive::detail::guid_initializer<T>::guid_initializer(const char*) [with T = derived]' error.cpp:23: instantiated from here /usr/include/boost/serialization/export.hpp:146: error: incomplete type 'boost::serialization::extended_type_info_null<derived>' used in nested name specifier /usr/include/boost/archive/detail/oserializer.hpp: In constructor 'boost::archive::detail::pointer_oserializer<T, Archive>::pointer_oserializer() [with T = derived, Archive = boost::archive::text_oarchive]': /usr/include/boost/archive/detail/oserializer.hpp:198: instantiated from 'const boost::archive::detail::pointer_oserializer<derived, boost::archive::text_oarchive> boost::archive::detail::pointer_oserializer<derived, boost::archive::text_oarchive>::instance' /usr/include/boost/archive/detail/oserializer.hpp:190: instantiated from 'static const boost::archive::detail::pointer_oserializer<T, Archive>& boost::archive::detail::pointer_oserializer<T, Archive>::instantiate() [with T = derived, Archive = boost::archive::text_oarchive]' /usr/include/boost/archive/detail/oserializer.hpp:515: instantiated from 'const boost::archive::detail::basic_pointer_oserializer& boost::archive::detail::instantiate_pointer_oserializer(Archive*, T*) [with Archive = boost::archive::text_oarchive, T = derived]' /usr/include/boost/serialization/export.hpp:83: instantiated from 'static void boost::archive::detail::export_impl::archive<Archive, T>::o::invoke() [with Archive = boost::archive::text_oarchive, T = derived]' /usr/include/boost/serialization/export.hpp:105: instantiated from 'static void boost::archive::detail::export_impl::archive<Archive, T>::instantiate() [with Archive = boost::archive::text_oarchive, T = derived]' ... ... ... [Lots more errors] -- View this message in context: http://www.nabble.com/Boost-Serialization-with-a-dynamically-loaded-shared-l... Sent from the Boost - Users mailing list archive at Nabble.com.