text: #ifndef  BOOST_ARCHIVE_BASIC_SERIALIZER_HPP
  #define BOOST_ARCHIVE_BASIC_SERIALIZER_HPP
  
  // MS compatible compilers support #pragma once
  #if defined(_MSC_VER)
  # 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 <boost/assert.hpp>
  #include <cstddef> // NULL
  
  #include <boost/noncopyable.hpp>
  #include <boost/config.hpp>
  #include <boost/serialization/extended_type_info.hpp>
  
  #ifdef BOOST_MSVC
  #  pragma warning(push)
  #  pragma warning(disable : 4511 4512)
  #endif
  
  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:
      inline bool 
      operator<(const basic_serializer & rhs) const {
          // can't compare address since there can be multiple eti records
          // for the same type in different execution modules (that is, DLLS)
          // leave this here as a reminder not to do this!
          // return & lhs.get_eti() < & rhs.get_eti();
          return get_eti() < rhs.get_eti();
      }
      const char * get_debug_info() const {
          return m_eti->get_debug_info();
      }
      const boost::serialization::extended_type_info & get_eti() const {
          return * m_eti;
      }
  };
  
  class basic_serializer_arg : public basic_serializer {
  public:
      basic_serializer_arg(const serialization::extended_type_info & eti) :
          basic_serializer(eti)
      {}
  };
  
  } // namespace detail
  } // namespace archive
  } // namespace boost
  
  #ifdef BOOST_MSVC
  #pragma warning(pop)
  #endif
  
  #endif // BOOST_ARCHIVE_BASIC_SERIALIZER_HPP
  