Fixed cluster read/write.

template <class Parameters>

io::Buffer& operator<<(io::Buffer& buff, const vertex_pair<Parameters>& v) {

  return buff << v.bands << v.e_spins << v.spin_orbitals << v.r_sites << v.HS_spin << v.tau;

  return buff << v.bands << v.e_spins << v.spin_orbitals << v.r_sites << v.delta_r << v.HS_spin

              << v.tau;

}

template <class Parameters>

io::Buffer& operator>>(io::Buffer& buff, vertex_pair<Parameters>& v) {

  v.creatable = false;

  v.annihilatable = true;

  v.successfully_flipped = false;

  v.Bennett = false;

  v.shuffled = true;

  return buff >> v.bands >> v.e_spins >> v.spin_orbitals >> v.r_sites >> v.HS_spin >> v.tau;

  return buff >> v.bands >> v.e_spins >> v.spin_orbitals >> v.r_sites >> v.delta_r >> v.HS_spin >>

         v.tau;

}

template <class Parameters>

  return buff;

}

}  // ctaux

}  // solver

}  // phys

}  // dca

}  // namespace ctaux

}  // namespace solver

}  // namespace phys

}  // namespace dca

#endif  // DCA_PHYS_DCA_STEP_CLUSTER_SOLVER_CTAUX_STRUCTS_READ_WRITE_CONFIG_HPP