text: #ifndef BOOST_ARCHIVE_POLYMORPHIC_TEXT_IARCHIVE_HPP
  #define BOOST_ARCHIVE_POLYMORPHIC_TEXT_IARCHIVE_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
  // polymorphic_text_iarchive.hpp
  
  // (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/config.hpp>
  #include <boost/archive/text_iarchive.hpp>
  #include <boost/archive/detail/polymorphic_iarchive_route.hpp>
  
  #ifdef BOOST_MSVC
  #  pragma warning(push)
  #  pragma warning(disable : 4511 4512)
  #endif
  
  namespace boost { 
  namespace archive {
  
  class polymorphic_text_iarchive : 
      public detail::polymorphic_iarchive_route<naked_text_iarchive>
  {
  public:
      polymorphic_text_iarchive(std::istream & is, unsigned int flags = 0) :
          detail::polymorphic_iarchive_route<naked_text_iarchive>(is, flags)
      {}
      ~polymorphic_text_iarchive(){}
  };
  
  } // namespace archive
  } // namespace boost
  
  #ifdef BOOST_MSVC
  #pragma warning(pop)
  #endif
  
  // required by export
  BOOST_SERIALIZATION_REGISTER_ARCHIVE(
      boost::archive::polymorphic_text_iarchive
  )
  
  #endif // BOOST_ARCHIVE_POLYMORPHIC_TEXT_IARCHIVE_HPP
  
  