text: #ifndef BOOST_ARCHIVE_DETAIL_COMMON_OARCHIVE_HPP
  #define BOOST_ARCHIVE_DETAIL_COMMON_OARCHIVE_HPP
  
  // MS compatible compilers support #pragma once
  #if defined(_MSC_VER)
  # pragma once
  #endif
  
  /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
  // common_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 <boost/config.hpp>
  
  #include <boost/archive/detail/basic_oarchive.hpp>
  #include <boost/archive/detail/interface_oarchive.hpp>
  
  #ifdef BOOST_MSVC
  #  pragma warning(push)
  #  pragma warning(disable : 4511 4512)
  #endif
  
  namespace boost {
  namespace archive {
  namespace detail {
  
  // note: referred to as Curiously Recurring Template Patter (CRTP)
  template<class Archive>
  
  class BOOST_SYMBOL_VISIBLE common_oarchive :
      public basic_oarchive,
      public interface_oarchive<Archive>
  {
      friend class interface_oarchive<Archive>;
  private:
      virtual void vsave(const version_type t){
          * this->This() << t;
      }
      virtual void vsave(const object_id_type t){
          * this->This() << t;
      }
      virtual void vsave(const object_reference_type t){
          * this->This() << t;
      }
      virtual void vsave(const class_id_type t){
          * this->This() << t;
      }
      virtual void vsave(const class_id_reference_type t){
          * this->This() << t;
      }
      virtual void vsave(const class_id_optional_type t){
          * this->This() << t;
      }
      virtual void vsave(const class_name_type & t){
          * this->This() << t;
      }
      virtual void vsave(const tracking_type t){
          * this->This() << t;
      }
  protected:
      // default processing - invoke serialization library
      template<class T>
      void save_override(T & t){
          archive::save(* this->This(), t);
      }
      void save_start(const char * /*name*/){}
      void save_end(const char * /*name*/){}
      common_oarchive(unsigned int flags = 0) : 
          basic_oarchive(flags),
          interface_oarchive<Archive>()
      {}
  };
  
  } // namespace detail
  } // namespace archive
  } // namespace boost
  
  #ifdef BOOST_MSVC
  #pragma warning(pop)
  #endif
  
  #endif // BOOST_ARCHIVE_DETAIL_COMMON_OARCHIVE_HPP
  