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282 lines
9.9 KiB
C++
282 lines
9.9 KiB
C++
#ifndef BOOST_SERIALIZATION_SHARED_PTR_HPP
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#define BOOST_SERIALIZATION_SHARED_PTR_HPP
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// MS compatible compilers support #pragma once
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#if defined(_MSC_VER)
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# pragma once
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#endif
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/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
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// shared_ptr.hpp: serialization for boost shared pointer
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// (C) Copyright 2004 Robert Ramey and Martin Ecker
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// Use, modification and distribution is subject to the Boost Software
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// License, Version 1.0. (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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// See http://www.boost.org for updates, documentation, and revision history.
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#include <cstddef> // NULL
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#include <memory>
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#include <boost/config.hpp>
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#include <boost/mpl/integral_c.hpp>
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#include <boost/mpl/integral_c_tag.hpp>
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#include <boost/detail/workaround.hpp>
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#include <boost/shared_ptr.hpp>
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#include <boost/serialization/shared_ptr_helper.hpp>
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#include <boost/serialization/split_free.hpp>
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#include <boost/serialization/nvp.hpp>
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#include <boost/serialization/version.hpp>
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#include <boost/serialization/tracking.hpp>
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/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
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// boost:: shared_ptr serialization traits
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// version 1 to distinguish from boost 1.32 version. Note: we can only do this
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// for a template when the compiler supports partial template specialization
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#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
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namespace boost {
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namespace serialization{
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template<class T>
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struct version< ::boost::shared_ptr< T > > {
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typedef mpl::integral_c_tag tag;
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#if BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3206))
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typedef typename mpl::int_<1> type;
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#else
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typedef mpl::int_<1> type;
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#endif
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BOOST_STATIC_CONSTANT(int, value = type::value);
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};
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// don't track shared pointers
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template<class T>
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struct tracking_level< ::boost::shared_ptr< T > > {
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typedef mpl::integral_c_tag tag;
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#if BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3206))
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typedef typename mpl::int_< ::boost::serialization::track_never> type;
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#else
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typedef mpl::int_< ::boost::serialization::track_never> type;
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#endif
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BOOST_STATIC_CONSTANT(int, value = type::value);
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};
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}}
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#define BOOST_SERIALIZATION_SHARED_PTR(T)
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#else
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// define macro to let users of these compilers do this
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#define BOOST_SERIALIZATION_SHARED_PTR(T) \
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BOOST_CLASS_VERSION( \
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::boost::shared_ptr< T >, \
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1 \
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) \
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BOOST_CLASS_TRACKING( \
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::boost::shared_ptr< T >, \
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::boost::serialization::track_never \
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) \
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/**/
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#endif
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namespace boost {
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namespace serialization{
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struct null_deleter {
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void operator()(void const *) const {}
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};
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/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
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// serialization for boost::shared_ptr
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// Using a constant means that all shared pointers are held in the same set.
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// Thus we detect handle multiple pointers to the same value instances
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// in the archive.
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void * const shared_ptr_helper_id = 0;
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template<class Archive, class T>
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inline void save(
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Archive & ar,
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const boost::shared_ptr< T > &t,
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const unsigned int /* file_version */
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){
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// The most common cause of trapping here would be serializing
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// something like shared_ptr<int>. This occurs because int
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// is never tracked by default. Wrap int in a trackable type
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BOOST_STATIC_ASSERT((tracking_level< T >::value != track_never));
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const T * t_ptr = t.get();
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ar << boost::serialization::make_nvp("px", t_ptr);
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}
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#ifdef BOOST_SERIALIZATION_SHARED_PTR_132_HPP
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template<class Archive, class T>
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inline void load(
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Archive & ar,
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boost::shared_ptr< T > &t,
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const unsigned int file_version
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){
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// something like shared_ptr<int>. This occurs because int
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// is never tracked by default. Wrap int in a trackable type
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BOOST_STATIC_ASSERT((tracking_level< T >::value != track_never));
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T* r;
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if(file_version < 1){
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ar.register_type(static_cast<
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boost_132::detail::sp_counted_base_impl<T *, null_deleter > *
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>(NULL));
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boost_132::shared_ptr< T > sp;
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ar >> boost::serialization::make_nvp("px", sp.px);
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ar >> boost::serialization::make_nvp("pn", sp.pn);
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// got to keep the sps around so the sp.pns don't disappear
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boost::serialization::shared_ptr_helper<boost::shared_ptr> & h =
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ar.template get_helper< shared_ptr_helper<boost::shared_ptr> >(
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shared_ptr_helper_id
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);
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h.append(sp);
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r = sp.get();
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}
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else{
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ar >> boost::serialization::make_nvp("px", r);
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}
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shared_ptr_helper<boost::shared_ptr> & h =
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ar.template get_helper<shared_ptr_helper<boost::shared_ptr> >(
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shared_ptr_helper_id
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);
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h.reset(t,r);
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}
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#else
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template<class Archive, class T>
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inline void load(
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Archive & ar,
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boost::shared_ptr< T > &t,
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const unsigned int /*file_version*/
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){
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// The most common cause of trapping here would be serializing
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// something like shared_ptr<int>. This occurs because int
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// is never tracked by default. Wrap int in a trackable type
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BOOST_STATIC_ASSERT((tracking_level< T >::value != track_never));
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T* r;
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ar >> boost::serialization::make_nvp("px", r);
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boost::serialization::shared_ptr_helper<boost::shared_ptr> & h =
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ar.template get_helper<shared_ptr_helper<boost::shared_ptr> >(
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shared_ptr_helper_id
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);
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h.reset(t,r);
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}
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#endif
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template<class Archive, class T>
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inline void serialize(
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Archive & ar,
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boost::shared_ptr< T > &t,
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const unsigned int file_version
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){
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// correct shared_ptr serialization depends upon object tracking
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// being used.
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BOOST_STATIC_ASSERT(
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boost::serialization::tracking_level< T >::value
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!= boost::serialization::track_never
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);
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boost::serialization::split_free(ar, t, file_version);
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}
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} // namespace serialization
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} // namespace boost
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/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
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// std::shared_ptr serialization traits
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// version 1 to distinguish from boost 1.32 version. Note: we can only do this
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// for a template when the compiler supports partial template specialization
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#ifndef BOOST_NO_CXX11_SMART_PTR
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#include <boost/static_assert.hpp>
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// note: we presume that any compiler/library which supports C++11
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// std::pointers also supports template partial specialization
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// trap here if such presumption were to turn out to wrong!!!
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#ifdef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
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BOOST_STATIC_ASSERT(false);
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#endif
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namespace boost {
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namespace serialization{
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template<class T>
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struct version< ::std::shared_ptr< T > > {
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typedef mpl::integral_c_tag tag;
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typedef mpl::int_<1> type;
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BOOST_STATIC_CONSTANT(int, value = type::value);
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};
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// don't track shared pointers
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template<class T>
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struct tracking_level< ::std::shared_ptr< T > > {
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typedef mpl::integral_c_tag tag;
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typedef mpl::int_< ::boost::serialization::track_never> type;
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BOOST_STATIC_CONSTANT(int, value = type::value);
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};
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}}
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// the following just keeps older programs from breaking
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#define BOOST_SERIALIZATION_SHARED_PTR(T)
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namespace boost {
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namespace serialization{
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/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
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// serialization for std::shared_ptr
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template<class Archive, class T>
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inline void save(
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Archive & ar,
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const std::shared_ptr< T > &t,
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const unsigned int /* file_version */
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){
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// The most common cause of trapping here would be serializing
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// something like shared_ptr<int>. This occurs because int
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// is never tracked by default. Wrap int in a trackable type
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BOOST_STATIC_ASSERT((tracking_level< T >::value != track_never));
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const T * t_ptr = t.get();
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ar << boost::serialization::make_nvp("px", t_ptr);
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}
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template<class Archive, class T>
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inline void load(
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Archive & ar,
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std::shared_ptr< T > &t,
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const unsigned int /*file_version*/
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){
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// The most common cause of trapping here would be serializing
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// something like shared_ptr<int>. This occurs because int
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// is never tracked by default. Wrap int in a trackable type
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BOOST_STATIC_ASSERT((tracking_level< T >::value != track_never));
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T* r;
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ar >> boost::serialization::make_nvp("px", r);
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//void (* const id)(Archive &, std::shared_ptr< T > &, const unsigned int) = & load;
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boost::serialization::shared_ptr_helper<std::shared_ptr> & h =
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ar.template get_helper<
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shared_ptr_helper<std::shared_ptr>
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>(
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shared_ptr_helper_id
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);
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h.reset(t,r);
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}
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template<class Archive, class T>
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inline void serialize(
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Archive & ar,
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std::shared_ptr< T > &t,
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const unsigned int file_version
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){
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// correct shared_ptr serialization depends upon object tracking
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// being used.
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BOOST_STATIC_ASSERT(
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boost::serialization::tracking_level< T >::value
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!= boost::serialization::track_never
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);
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boost::serialization::split_free(ar, t, file_version);
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}
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} // namespace serialization
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} // namespace boost
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#endif // BOOST_NO_CXX11_SMART_PTR
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#endif // BOOST_SERIALIZATION_SHARED_PTR_HPP
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