/* Copyright 2003-2005 Joaquín M López Muñoz.

 * Distributed under 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/libs/multi_index for library home page.

 */

#ifndef BOOST_MULTI_INDEX_DETAIL_ARCHIVE_CONSTRUCTED_HPP

#define BOOST_MULTI_INDEX_DETAIL_ARCHIVE_CONSTRUCTED_HPP

#if defined(_MSC_VER)&&(_MSC_VER>=1200)

#pragma once

#endif

#include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */

#include <boost/detail/no_exceptions_support.hpp>

#include <boost/noncopyable.hpp>

#include <boost/serialization/serialization.hpp>

#include <boost/type_traits/aligned_storage.hpp>

#include <boost/type_traits/alignment_of.hpp> 

namespace boost{

namespace multi_index{

namespace detail{

/* constructs a stack-based object from a serialization archive */

template<typename T>

struct archive_constructed:private noncopyable

{

  template<class Archive>

  archive_constructed(Archive& ar,const unsigned int version)

  {

    serialization::load_construct_data_adl(ar,&get(),version);

    BOOST_TRY{

      ar>>get();

    }

    BOOST_CATCH(...){

      (&get())->~T();

      BOOST_RETHROW;

    }

    BOOST_CATCH_END

  }

  template<class Archive>

  archive_constructed(const char* name,Archive& ar,const unsigned int version)

  {

    serialization::load_construct_data_adl(ar,&get(),version);

    BOOST_TRY{

      ar>>serialization::make_nvp(name,get());

    }

    BOOST_CATCH(...){

      (&get())->~T();

      BOOST_RETHROW;

    }

    BOOST_CATCH_END

  }

  ~archive_constructed()

  {

    (&get())->~T();

  }

  T& get(){return *static_cast<T*>(static_cast<void*>(&space));}

private:

  typename aligned_storage<sizeof(T),alignment_of<T>::value>::type space;

};

} /* namespace multi_index::detail */

} /* namespace multi_index */

} /* namespace boost */

#endif