--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ossrv_pub/boost_apis/boost/serialization/optional.hpp Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,112 @@
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+
+// (C) Copyright 2002-4 Pavel Vozenilek .
+// Use, modification and distribution is subject to 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)
+
+// Provides non-intrusive serialization for boost::optional.
+
+#ifndef BOOST_SERIALIZATION_OPTIONAL_HPP_
+#define BOOST_SERIALIZATION_OPTIONAL_HPP_
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+#include <boost/config.hpp>
+
+#include <boost/optional.hpp>
+#include <boost/serialization/split_free.hpp>
+#include <boost/serialization/level.hpp>
+#include <boost/serialization/nvp.hpp>
+#include <boost/serialization/detail/stack_constructor.hpp>
+
+// function specializations must be defined in the appropriate
+// namespace - boost::serialization
+namespace boost {
+namespace serialization {
+
+template<class Archive, class T>
+void save(
+ Archive & ar,
+ const boost::optional<T> & t,
+ const unsigned int /*version*/
+){
+ const bool tflag = t.is_initialized();
+ ar << boost::serialization::make_nvp("initialized", tflag);
+ if (tflag){
+ if(3 < ar.get_library_version()){
+ const int v = version<T>::value;
+ ar << make_nvp("item_version", v);
+ }
+ ar << boost::serialization::make_nvp("value", *t);
+ }
+}
+
+template<class Archive, class T>
+void load(
+ Archive & ar,
+ boost::optional<T> & t,
+ const unsigned int /*version*/
+){
+ bool tflag;
+ ar >> boost::serialization::make_nvp("initialized", tflag);
+ if (tflag){
+ unsigned int v;
+ if(3 < ar.get_library_version()){
+ ar >> make_nvp("item_version", v);
+ }
+ detail::stack_construct<Archive, T> aux(ar, v);
+ ar >> boost::serialization::make_nvp("value", aux.reference());
+ t.reset(aux.reference());
+ }
+ else {
+ t.reset();
+ }
+}
+
+template<class Archive, class T>
+void serialize(
+ Archive & ar,
+ boost::optional<T> & t,
+ const unsigned int version
+){
+ boost::serialization::split_free(ar, t, version);
+}
+
+// the following would be slightly more efficient. But it
+// would mean that archives created with programs that support
+// TPS wouldn't be readable by programs that don't support TPS.
+// Hence we decline to support this otherwise convenient optimization.
+//#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+#if 0
+
+template <class T>
+struct implementation_level<optional<T> >
+{
+ typedef mpl::integral_c_tag tag;
+ typedef mpl::int_<boost::serialization::object_serializable> type;
+ BOOST_STATIC_CONSTANT(
+ int ,
+ value = boost::serialization::implementation_level::type::value
+ );
+};
+
+template<class T>
+struct tracking_level<optional<T> >
+{
+ typedef mpl::integral_c_tag tag;
+ typedef mpl::int_<boost::serialization::track_never> type;
+ BOOST_STATIC_CONSTANT(
+ int ,
+ value = boost::serialization::tracking_level::type::value
+ );
+};
+
+#endif
+
+} // serialization
+} // namespace boost
+
+#endif // BOOST_SERIALIZATION_OPTIONAL_HPP_