1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/ossrv/ossrv_pub/boost_apis/boost/serialization/optional.hpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,112 @@
     1.4 +/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
     1.5 +
     1.6 +// (C) Copyright 2002-4 Pavel Vozenilek . 
     1.7 +// Use, modification and distribution is subject to the Boost Software
     1.8 +// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
     1.9 +// http://www.boost.org/LICENSE_1_0.txt)
    1.10 +
    1.11 +// Provides non-intrusive serialization for boost::optional.
    1.12 +
    1.13 +#ifndef BOOST_SERIALIZATION_OPTIONAL_HPP_
    1.14 +#define BOOST_SERIALIZATION_OPTIONAL_HPP_
    1.15 +
    1.16 +#if defined(_MSC_VER) && (_MSC_VER >= 1020)
    1.17 +# pragma once
    1.18 +#endif
    1.19 +
    1.20 +#include <boost/config.hpp>
    1.21 +
    1.22 +#include <boost/optional.hpp>
    1.23 +#include <boost/serialization/split_free.hpp>
    1.24 +#include <boost/serialization/level.hpp>
    1.25 +#include <boost/serialization/nvp.hpp>
    1.26 +#include <boost/serialization/detail/stack_constructor.hpp>
    1.27 +
    1.28 +// function specializations must be defined in the appropriate
    1.29 +// namespace - boost::serialization
    1.30 +namespace boost { 
    1.31 +namespace serialization {
    1.32 +
    1.33 +template<class Archive, class T>
    1.34 +void save(
    1.35 +    Archive & ar, 
    1.36 +    const boost::optional<T> & t, 
    1.37 +    const unsigned int /*version*/
    1.38 +){
    1.39 +    const bool tflag = t.is_initialized();
    1.40 +    ar << boost::serialization::make_nvp("initialized", tflag);
    1.41 +    if (tflag){
    1.42 +        if(3 < ar.get_library_version()){
    1.43 +            const int v = version<T>::value;
    1.44 +            ar << make_nvp("item_version", v);
    1.45 +        }
    1.46 +        ar << boost::serialization::make_nvp("value", *t);
    1.47 +    }
    1.48 +}
    1.49 +
    1.50 +template<class Archive, class T>
    1.51 +void load(
    1.52 +    Archive & ar, 
    1.53 +    boost::optional<T> & t, 
    1.54 +    const unsigned int /*version*/
    1.55 +){
    1.56 +    bool tflag;
    1.57 +    ar >> boost::serialization::make_nvp("initialized", tflag);
    1.58 +    if (tflag){
    1.59 +        unsigned int v;
    1.60 +        if(3 < ar.get_library_version()){
    1.61 +            ar >> make_nvp("item_version", v);
    1.62 +        }
    1.63 +        detail::stack_construct<Archive, T> aux(ar, v);
    1.64 +        ar >> boost::serialization::make_nvp("value", aux.reference());
    1.65 +        t.reset(aux.reference());
    1.66 +    }
    1.67 +    else {
    1.68 +        t.reset();
    1.69 +    }
    1.70 +}
    1.71 +
    1.72 +template<class Archive, class T>
    1.73 +void serialize(
    1.74 +    Archive & ar, 
    1.75 +    boost::optional<T> & t, 
    1.76 +    const unsigned int version
    1.77 +){
    1.78 +    boost::serialization::split_free(ar, t, version);
    1.79 +}
    1.80 +
    1.81 +// the following would be slightly more efficient.  But it
    1.82 +// would mean that archives created with programs that support
    1.83 +// TPS wouldn't be readable by programs that don't support TPS.
    1.84 +// Hence we decline to support this otherwise convenient optimization.
    1.85 +//#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
    1.86 +#if 0
    1.87 +
    1.88 +template <class T>
    1.89 +struct implementation_level<optional<T> >
    1.90 +{
    1.91 +    typedef mpl::integral_c_tag tag;
    1.92 +    typedef mpl::int_<boost::serialization::object_serializable> type;
    1.93 +    BOOST_STATIC_CONSTANT(
    1.94 +        int , 
    1.95 +        value = boost::serialization::implementation_level::type::value
    1.96 +    );
    1.97 +};
    1.98 +
    1.99 +template<class T>
   1.100 +struct tracking_level<optional<T> >
   1.101 +{
   1.102 +    typedef mpl::integral_c_tag tag;
   1.103 +    typedef mpl::int_<boost::serialization::track_never> type;
   1.104 +    BOOST_STATIC_CONSTANT(
   1.105 +        int , 
   1.106 +        value = boost::serialization::tracking_level::type::value
   1.107 +    );
   1.108 +};
   1.109 +
   1.110 +#endif
   1.111 +
   1.112 +} // serialization
   1.113 +} // namespace boost
   1.114 +
   1.115 +#endif // BOOST_SERIALIZATION_OPTIONAL_HPP_