I added this into the ClassSpecification_serialization.cc : typedef std::vector< MemberVariableSpecification * , std::allocator > my_vector; BOOST_CLASS_IMPLEMENTATION(my_vector, boost::serialization::object_serializable) But I still get the same error... help! Jean-Noël Ps: the typedef was necessary, else gcc parsing would recognize 3 arguments to the macro BOOST_CLASS_IMPLEMENTATION -----Message d'origine----- De : boost-users-bounces@lists.boost.org [mailto:boost-users-bounces@lists.boost.org] De la part de Robert Ramey Envoyé : lundi 27 février 2006 18:25 À : boost-users@lists.boost.org Objet : Re: [Boost-users] serialization: again a problem,failing to serialize a std::vector of pointers "RIVASSEAU Jean Noel" wrote in message news:87F60F7FA02FF749AFB02BD9FCAA6B04DA7ABF@naserv31.nanterre.oberthurcs.com... Hello This is my last problem with the BSL but the most important one (because there is no workaround). I am trying to serialize a class (whose name is "ClassSpecification") which has a std::vector of pointers. The code for serializing the class the pointer refer to (MemberVariableSpecification) is written and instantiated correctly. However I cannot correctly serialize the std::vector. It fails with a message complaining about: C:/Boost/include/boost-1_33_1/boost/archive/detail/iserializer.hpp:115: error: incomplete type `boost::serialization::extended_type_info_null > >' used in nested name specifier I do not understand why I need an extended_type_info for this vector. I sure need it for the class the pointers refer to (and I did specify it), but the std::vector itself is serialized as such, not as a pointer. *** hmmm - can sympathise with you here. I suspect that this is a mistake. It might be an accidental side effect of the fact that the default serialization trait for any class is tracked with class information. You might try the following: BOOST_CLASS_IMPLEMENTATION( std::vector, boost::serialization::object_serializable ) Why do I get this error ??? I would have to look into it. Can you please check the attached code and help me? Thanks Jean-Noël Ps: using gcc 3.4.2 _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users