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+/* Copyright 2006-2014 Joaquin M Lopez Munoz.
+ * 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/flyweight for library home page.
+ */
+
+#ifndef BOOST_FLYWEIGHT_DETAIL_ARCHIVE_CONSTRUCTED_HPP
+#define BOOST_FLYWEIGHT_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 flyweights{
+
+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 flyweights::detail */
+
+} /* namespace flyweights */
+
+} /* namespace boost */
+
+#endif