[Boost-users] Reduced example

#include <string> #include <sstream> #include #include #include #include #include struct X : boost::enable_shared_from_this<X> { X(){} virtual ~X() {} explicit X(int i) : i(i) {} template<class Archive> void serialize(Archive & ar, const unsigned int) { ar & boost::serialization::make_nvp("i", i); } int i; }; typedef boost::shared_ptr<X> PX; int main() { std::stringstream ss; boost::archive::xml_oarchive oa(ss); PX px (new X(4)); oa << boost::serialization::make_nvp("v", px); px.reset(); ss.seekp(0); boost::archive::xml_iarchive ia(ss); ia >> boost::serialization::make_nvp("v", px); PX px1 = px.get()->shared_from_this(); }