#ifndef BOOST_SERIALIZATION_CHEIND_A_HPP
#define BOOST_SERIALIZATION_CHEIND_A_HPP

// MS compatible compilers support #pragma once
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
# pragma once
#endif

#include <boost/serialization/nvp.hpp>

struct A {
public:
  A() {}
  virtual ~A() {}

  template<class T>
  void serialize(T &ar, const unsigned int version)
  {
    ar & BOOST_SERIALIZATION_NVP(i);
  }

  int i;
};

#endif