I'm sorry if this appears twice; I received an e-mail saying it couldn't be sent because I hadn't subscribed to the mailing list. When I run the following code, I get this error: terminate called after throwing an instance of 'boost::archive::xml_archive_exception' what(): uninitialized exception Abort However, if I substitute BOOST_SERIALIZATION_NVP for the make_nvp function, it works fine. Am I doing something wrong, or is this a bug? #include <iostream> #include <fstream> #include <string> #include <boost/config.hpp> #if defined(BOOST_NO_STDC_NAMESPACE) namespace std{ using ::remove; } #endif #include <boost/archive/tmpdir.hpp> #include <boost/archive/xml_iarchive.hpp> #include <boost/archive/xml_oarchive.hpp> #include <boost/serialization/nvp.hpp> class A { public: A() {} virtual ~A() {} int a; private: friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int version) { //ar & BOOST_SERIALIZATION_NVP(a); ar & boost::serialization::make_nvp("example field",a); }; }; void restore( const char * filename) { A s; // open the archive std::ifstream ifs(filename); assert(ifs.good()); boost::archive::xml_iarchive ia(ifs); // restore the schedule from the archive ia >> BOOST_SERIALIZATION_NVP(s); } int main(int argc, char *argv[]) { std::string filename("/tmp/wtf.xml"); { A s; // make an archive std::ofstream ofs(filename.c_str()); assert(ofs.good()); boost::archive::xml_oarchive oa(ofs); oa << BOOST_SERIALIZATION_NVP(s); } printf("---\n"); restore( filename.c_str()); return 0; } -- View this message in context: http://www.nabble.com/Bug-in-serialization%3A%3Amake_nvp--tp25304627p2530462... Sent from the Boost - Users mailing list archive at Nabble.com.