boost/serialization/unique_ptr.hpp

0001 #ifndef  BOOST_SERIALIZATION_UNIQUE_PTR_HPP
0002 #define BOOST_SERIALIZATION_UNIQUE_PTR_HPP
0003
0004 // MS compatible compilers support #pragma once
0005 #if defined(_MSC_VER)
0006 # pragma once
0007 #endif
0008
0009 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
0010 // unique_ptr.hpp:
0011
0012 // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
0013 // Use, modification and distribution is subject to the Boost Software
0014 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
0015 // http://www.boost.org/LICENSE_1_0.txt)
0016
0017 //  See http://www.boost.org for updates, documentation, and revision history.
0018 #include <memory>
0019 #include <boost/serialization/split_free.hpp>
0020 #include <boost/serialization/nvp.hpp>
0021
0022 namespace boost {
0023 namespace serialization {
0024
0025 /////////////////////////////////////////////////////////////
0026 // implement serialization for unique_ptr< T >
0027 // note: this must be added to the boost namespace in order to
0028 // be called by the library
0029 template<class Archive, class T>
0030 inline void save(
0031     Archive & ar,
0032     const std::unique_ptr< T > &t,
0033     const unsigned int /*file_version*/
0034 ){
0035     // only the raw pointer has to be saved
0036     // the ref count is rebuilt automatically on load
0037     const T * const tx = t.get();
0038     ar << BOOST_SERIALIZATION_NVP(tx);
0039 }
0040
0041 template<class Archive, class T>
0042 inline void load(
0043     Archive & ar,
0044     std::unique_ptr< T > &t,
0045     const unsigned int /*file_version*/
0046 ){
0047     T *tx;
0048     ar >> BOOST_SERIALIZATION_NVP(tx);
0049     // note that the reset automagically maintains the reference count
0050     t.reset(tx);
0051 }
0052
0053 // split non-intrusive serialization function member into separate
0054 // non intrusive save/load member functions
0055 template<class Archive, class T>
0056 inline void serialize(
0057     Archive & ar,
0058     std::unique_ptr< T > &t,
0059     const unsigned int file_version
0060 ){
0061     boost::serialization::split_free(ar, t, file_version);
0062 }
0063
0064 } // namespace serialization
0065 } // namespace boost
0066
0067
0068 #endif // BOOST_SERIALIZATION_UNIQUE_PTR_HPP