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authorKevin Smith <git@kismith.co.uk>2014-05-29 15:56:31 (GMT)
committerKevin Smith <git@kismith.co.uk>2014-05-29 15:56:31 (GMT)
commitab612d0f18ff545b4ebcb2bf2bb400996e751181 (patch)
tree8c363717b5ff294c12d6ea23924d75ac13dba24f /3rdParty/Boost/src/boost/serialization/optional.hpp
parent058719296f496b14b906fdee3d74d72a78d9f6a2 (diff)
downloadswift-ab612d0f18ff545b4ebcb2bf2bb400996e751181.zip
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Add boost::optional serialization
Needed by one of Richard's pending patches Change-Id: I64f6ab56065a51019a2d0c826e1bde6856970994
Diffstat (limited to '3rdParty/Boost/src/boost/serialization/optional.hpp')
-rw-r--r--3rdParty/Boost/src/boost/serialization/optional.hpp127
1 files changed, 127 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/serialization/optional.hpp b/3rdParty/Boost/src/boost/serialization/optional.hpp
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+/////////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/archive/detail/basic_iarchive.hpp>
+
+#include <boost/optional.hpp>
+#include <boost/serialization/item_version_type.hpp>
+#include <boost/serialization/split_free.hpp>
+#include <boost/serialization/level.hpp>
+#include <boost/serialization/nvp.hpp>
+#include <boost/serialization/version.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){
+ const boost::serialization::item_version_type item_version(version< T >::value);
+ #if 0
+ const boost::archive::library_version_type library_version(
+ ar.get_library_version()
+ };
+ if(boost::archive::library_version_type(3) < library_version){
+ ar << BOOST_SERIALIZATION_NVP(item_version);
+ }
+ #else
+ ar << BOOST_SERIALIZATION_NVP(item_version);
+ #endif
+ 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){
+ boost::serialization::item_version_type item_version(0);
+ boost::archive::library_version_type library_version(
+ ar.get_library_version()
+ );
+ if(boost::archive::library_version_type(3) < library_version){
+ // item_version is handled as an attribute so it doesnt need an NVP
+ ar >> BOOST_SERIALIZATION_NVP(item_version);
+ }
+ detail::stack_construct<Archive, T> aux(ar, item_version);
+ 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_