80 lines
1.9 KiB
Plaintext
80 lines
1.9 KiB
Plaintext
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/* Copyright 2003-2015 Joaquin M Lopez Munoz.
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* Distributed under the Boost Software License, Version 1.0.
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* (See accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*
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* See http://www.boost.org/libs/multi_index for library home page.
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*/
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#ifndef BOOST_MULTI_INDEX_DETAIL_ARCHIVE_CONSTRUCTED_HPP
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#define BOOST_MULTI_INDEX_DETAIL_ARCHIVE_CONSTRUCTED_HPP
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#if defined(_MSC_VER)
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#pragma once
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#endif
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#include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
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#include <boost/detail/no_exceptions_support.hpp>
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#include <boost/noncopyable.hpp>
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#include <boost/serialization/serialization.hpp>
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#include <boost/type_traits/aligned_storage.hpp>
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#include <boost/type_traits/alignment_of.hpp>
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namespace boost{
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namespace multi_index{
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namespace detail{
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/* constructs a stack-based object from a serialization archive */
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template<typename T>
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struct archive_constructed:private noncopyable
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{
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template<class Archive>
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archive_constructed(Archive& ar,const unsigned int version)
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{
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serialization::load_construct_data_adl(ar,&get(),version);
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BOOST_TRY{
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ar>>get();
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}
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BOOST_CATCH(...){
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(&get())->~T();
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BOOST_RETHROW;
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}
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BOOST_CATCH_END
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}
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template<class Archive>
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archive_constructed(const char* name,Archive& ar,const unsigned int version)
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{
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serialization::load_construct_data_adl(ar,&get(),version);
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BOOST_TRY{
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ar>>serialization::make_nvp(name,get());
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}
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BOOST_CATCH(...){
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(&get())->~T();
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BOOST_RETHROW;
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}
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BOOST_CATCH_END
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}
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~archive_constructed()
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{
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(&get())->~T();
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}
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T& get(){return *reinterpret_cast<T*>(&space);}
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private:
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typename aligned_storage<sizeof(T),alignment_of<T>::value>::type space;
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};
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} /* namespace multi_index::detail */
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} /* namespace multi_index */
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} /* namespace boost */
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#endif
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