Added thirdparty: boost library

thirdparty/include/boost/serialization/optional.hpp

@@ -0,0 +1,166 @@
+/////////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)
+# pragma once
+#endif
+
+#include <boost/config.hpp>
+#include <boost/optional.hpp>
+#ifndef BOOST_NO_CXX17_HDR_OPTIONAL
+#include <optional>
+#endif
+
+#include <boost/serialization/item_version_type.hpp>
+#include <boost/serialization/library_version_type.hpp>
+#include <boost/serialization/version.hpp>
+#include <boost/serialization/split_free.hpp>
+#include <boost/serialization/nvp.hpp>
+#include <boost/type_traits/is_pointer.hpp>
+#include <boost/serialization/detail/is_default_constructible.hpp>
+
+// function specializations must be defined in the appropriate
+// namespace - boost::serialization
+namespace boost {
+namespace serialization {
+namespace detail {
+
+// OT is of the form optional<T>
+template<class Archive, class OT>
+void save_impl(
+    Archive & ar,
+    const OT & ot
+){
+    // It is an inherent limitation to the serialization of optional.hpp
+    // that the underlying type must be either a pointer or must have a
+    // default constructor.  It's possible that this could change sometime
+    // in the future, but for now, one will have to work around it.  This can
+    // be done by serialization the optional<T> as optional<T *>
+    #ifndef BOOST_NO_CXX11_HDR_TYPE_TRAITS
+        BOOST_STATIC_ASSERT(
+            boost::serialization::detail::is_default_constructible<typename OT::value_type>::value
+            || boost::is_pointer<typename OT::value_type>::value
+        );
+    #endif
+    const bool tflag(ot);
+    ar << boost::serialization::make_nvp("initialized", tflag);
+    if (tflag){
+        ar << boost::serialization::make_nvp("value", *ot);
+    }
+}
+
+// OT is of the form optional<T>
+template<class Archive, class OT>
+void load_impl(
+    Archive & ar,
+    OT & ot,
+    const unsigned int version
+){
+    bool tflag;
+    ar >> boost::serialization::make_nvp("initialized", tflag);
+    if(! tflag){
+        ot.reset();
+        return;
+    }
+
+    if(0 == version){
+        boost::serialization::item_version_type item_version(0);
+        boost::serialization::library_version_type library_version(
+            ar.get_library_version()
+        );
+        if(boost::serialization::library_version_type(3) < library_version){
+            ar >> BOOST_SERIALIZATION_NVP(item_version);
+        }
+    }
+    typename OT::value_type t;
+    ar >> boost::serialization::make_nvp("value",t);
+    ot = t;
+}
+
+} // detail
+
+template<class Archive, class T>
+void save(
+    Archive & ar,
+    const boost::optional< T > & ot,
+    const unsigned int /*version*/
+){
+    detail::save_impl(ar, ot);
+}
+
+#ifndef BOOST_NO_CXX17_HDR_OPTIONAL
+template<class Archive, class T>
+void save(
+    Archive & ar,
+    const std::optional< T > & ot,
+    const unsigned int /*version*/
+){
+    detail::save_impl(ar, ot);
+}
+#endif
+
+template<class Archive, class T>
+void load(
+    Archive & ar,
+    boost::optional< T > & ot,
+    const unsigned int version
+){
+    detail::load_impl(ar, ot, version);
+}
+
+#ifndef BOOST_NO_CXX17_HDR_OPTIONAL
+template<class Archive, class T>
+void load(
+    Archive & ar,
+    std::optional< T >  & ot,
+    const unsigned int version
+){
+    detail::load_impl(ar, ot, version);
+}
+#endif
+
+template<class Archive, class T>
+void serialize(
+    Archive & ar,
+    boost::optional< T > & ot,
+    const unsigned int version
+){
+    boost::serialization::split_free(ar, ot, version);
+}
+
+#ifndef BOOST_NO_CXX17_HDR_OPTIONAL
+template<class Archive, class T>
+void serialize(
+    Archive & ar,
+    std::optional< T > & ot,
+    const unsigned int version
+){
+    boost::serialization::split_free(ar, ot, version);
+}
+#endif
+
+template<class T>
+struct version<boost::optional<T> >{
+    BOOST_STATIC_CONSTANT(int, value = 1);
+};
+
+#ifndef BOOST_NO_CXX17_HDR_OPTIONAL
+template<class T>
+struct version<std::optional<T> >{
+    BOOST_STATIC_CONSTANT(int, value = 1);
+};
+#endif
+
+} // serialization
+} // boost
+
+#endif // BOOST_SERIALIZATION_OPTIONAL_HPP