#ifdef __CINT__ #pragma link C++ class HepMC::FourVector+; #pragma link C++ class HepMC::ThreeVector+; #pragma link C++ class HepMC::Polarization+; #pragma link C++ class HepMC::GenVertex+; #pragma link C++ class HepMC::GenEvent+; #pragma link C++ class HepMC::WeightContainer+; #pragma link C++ class HepMC::GenParticle+; #endif