Added thirdparty: boost library

thirdparty/include/boost/unordered/detail/serialization_version.hpp

@@ -0,0 +1,74 @@
+/* Copyright 2023 Joaquin M Lopez Munoz.
+ * Distributed under 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)
+ *
+ * See https://www.boost.org/libs/unordered for library home page.
+ */
+
+#ifndef BOOST_UNORDERED_DETAIL_SERIALIZATION_VERSION_HPP
+#define BOOST_UNORDERED_DETAIL_SERIALIZATION_VERSION_HPP
+
+#include <boost/config.hpp>
+#include <boost/core/serialization.hpp>
+
+namespace boost{
+namespace unordered{
+namespace detail{
+
+/* boost::serialization::load_construct_adl(ar,t,version) requires user code
+ * to pass the serialization version for t, when this information is really
+ * stored in the archive. serialization_version<T> circumvents this design
+ * error by acting as a regular serializable type with the same serialization
+ * version as T; loading/saving serialization_version<T> does nothing with
+ * the archive data itself but captures the stored serialization version
+ * at load() time.
+ */
+
+template<typename T>
+struct serialization_version
+{
+  serialization_version():
+    value(boost::serialization::version<serialization_version>::value){}
+
+  serialization_version& operator=(unsigned int x){value=x;return *this;};
+
+  operator unsigned int()const{return value;}
+
+private:
+  friend class boost::serialization::access;
+
+  template<class Archive>
+  void serialize(Archive& ar,unsigned int version)
+  {
+    core::split_member(ar,*this,version);
+  }
+
+  template<class Archive>
+  void save(Archive&,unsigned int)const{}
+
+  template<class Archive>
+  void load(Archive&,unsigned int version)
+  {
+    this->value=version;
+  }
+
+  unsigned int value;
+};
+
+} /* namespace detail */
+} /* namespace unordered */
+
+namespace serialization{
+
+template<typename T>
+struct version<boost::unordered::detail::serialization_version<T> >
+{
+  BOOST_STATIC_CONSTANT(int,value=version<T>::value);
+};
+
+} /* namespace serialization */
+
+} /* namespace boost */
+
+#endif