#ifndef  BOOST_ARCHIVE_BASIC_SERIALIZER_HPP

 #define BOOST_ARCHIVE_BASIC_SERIALIZER_HPP

 // MS compatible compilers support #pragma once

 #if defined(_MSC_VER) && (_MSC_VER >= 1020)

 # pragma once

 #endif

 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8

 // basic_serializer.hpp: extenstion of type_info required for serialization.

 // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 

 // Use, modification and distribution is subject to the Boost Software

 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at

 // http://www.boost.org/LICENSE_1_0.txt)

 //  See http://www.boost.org for updates, documentation, and revision history.

 #include <cassert>

 #include <boost/noncopyable.hpp>

 #include <boost/config.hpp>

 #include <boost/serialization/extended_type_info.hpp>

 namespace boost {

 namespace archive {

 namespace detail {

 class basic_serializer : private boost::noncopyable

 {

     const boost::serialization::extended_type_info & m_eti;

 protected:

     explicit basic_serializer(

         const boost::serialization::extended_type_info & eti

     ) : 

         m_eti(eti)

     {}

 public:

     const boost::serialization::extended_type_info & get_eti() const {

         return m_eti;

     }

     bool operator<(const basic_serializer & rhs) const {

         return & m_eti < & rhs.get_eti();

     }

 };

 } // namespace detail

 } // namespace archive

 } // namespace boost

 #endif // BOOST_ARCHIVE_BASIC_SERIALIZER_HPP