text: #ifndef BOOST_ARCHIVE_XML_OARCHIVE_HPP
  #define BOOST_ARCHIVE_XML_OARCHIVE_HPP
  
  // MS compatible compilers support #pragma once
  #if defined(_MSC_VER)
  # pragma once
  #endif
  
  /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
  // xml_oarchive.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 <ostream>
  
  #include <cstddef> // size_t
  #include <boost/config.hpp>
  #if defined(BOOST_NO_STDC_NAMESPACE)
  namespace std{ 
      using ::size_t; 
  } // namespace std
  #endif
  
  #include <boost/archive/detail/auto_link_archive.hpp>
  #include <boost/archive/basic_text_oprimitive.hpp>
  #include <boost/archive/basic_xml_oarchive.hpp>
  #include <boost/archive/detail/register_archive.hpp>
  #include <boost/serialization/item_version_type.hpp>
  
  #include <boost/archive/detail/abi_prefix.hpp> // must be the last header
  
  #ifdef BOOST_MSVC
  #  pragma warning(push)
  #  pragma warning(disable : 4511 4512)
  #endif
  
  namespace boost {
  namespace archive {
  
  namespace detail {
      template<class Archive> class interface_oarchive;
  } // namespace detail
  
  template<class Archive>
  class BOOST_SYMBOL_VISIBLE xml_oarchive_impl : 
      public basic_text_oprimitive<std::ostream>,
      public basic_xml_oarchive<Archive>
  {
  #ifdef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
  public:
  #else
  protected:
      friend class detail::interface_oarchive<Archive>;
      friend class basic_xml_oarchive<Archive>;
      friend class save_access;
  #endif
      template<class T>
      void save(const T & t){
          basic_text_oprimitive<std::ostream>::save(t);
      }
      void 
      save(const version_type & t){
          save(static_cast<const unsigned int>(t));
      }
      void 
      save(const boost::serialization::item_version_type & t){
          save(static_cast<const unsigned int>(t));
      }
      BOOST_ARCHIVE_DECL void 
      save(const char * t);
      #ifndef BOOST_NO_INTRINSIC_WCHAR_T
      BOOST_ARCHIVE_DECL void
      save(const wchar_t * t);
      #endif
      BOOST_ARCHIVE_DECL void
      save(const std::string &s);
      #ifndef BOOST_NO_STD_WSTRING
      BOOST_ARCHIVE_DECL void
      save(const std::wstring &ws);
      #endif
      BOOST_ARCHIVE_DECL 
      xml_oarchive_impl(std::ostream & os, unsigned int flags);
      BOOST_ARCHIVE_DECL 
      ~xml_oarchive_impl();
  public:
      BOOST_ARCHIVE_DECL
      void save_binary(const void *address, std::size_t count);
  };
  
  } // namespace archive
  } // namespace boost
  
  #ifdef BOOST_MSVC
  #pragma warning(pop)
  #endif
  
  #include <boost/archive/detail/abi_suffix.hpp> // pops abi_suffix.hpp pragmas
  #ifdef BOOST_MSVC
  #  pragma warning(push)
  #  pragma warning(disable : 4511 4512)
  #endif
  
  namespace boost { 
  namespace archive {
  
  // we use the following because we can't use
  // typedef xml_oarchive_impl<xml_oarchive_impl<...> > xml_oarchive;
  
  // do not derive from this class.  If you want to extend this functionality
  // via inhertance, derived from xml_oarchive_impl instead.  This will
  // preserve correct static polymorphism.
  class BOOST_SYMBOL_VISIBLE xml_oarchive : 
      public xml_oarchive_impl<xml_oarchive>
  {
  public:
      xml_oarchive(std::ostream & os, unsigned int flags = 0) :
          xml_oarchive_impl<xml_oarchive>(os, flags)
      {}
      ~xml_oarchive(){}
  };
  
  } // namespace archive
  } // namespace boost
  
  // required by export
  BOOST_SERIALIZATION_REGISTER_ARCHIVE(boost::archive::xml_oarchive)
  
  #ifdef BOOST_MSVC
  #pragma warning(pop)
  #endif
  
  #endif // BOOST_ARCHIVE_XML_OARCHIVE_HPP
  