Imported existing code

libraries/include/boost/serialization/version.hpp

@@ -0,0 +1,87 @@
+#ifndef BOOST_SERIALIZATION_VERSION_HPP
+#define BOOST_SERIALIZATION_VERSION_HPP
+
+// MS compatible compilers support #pragma once
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// version.hpp:
+
+// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 
+// 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)
+
+//  See http://www.boost.org for updates, documentation, and revision history.
+
+#include <boost/config.hpp>
+#include <boost/mpl/int.hpp>
+#include <boost/mpl/eval_if.hpp>
+#include <boost/mpl/identity.hpp>
+#include <boost/mpl/integral_c_tag.hpp>
+
+#include <boost/type_traits/is_base_and_derived.hpp>
+//#include <boost/serialization/traits.hpp>
+
+namespace boost { 
+namespace serialization {
+
+struct basic_traits;
+
+// default version number is 0. Override with higher version
+// when class definition changes.
+template<class T>
+struct version
+{
+    template<class U>
+    struct traits_class_version {
+        typedef BOOST_DEDUCED_TYPENAME U::version type;
+    };
+
+    typedef mpl::integral_c_tag tag;
+    // note: at least one compiler complained w/o the full qualification
+    // on basic traits below
+    typedef
+        BOOST_DEDUCED_TYPENAME mpl::eval_if<
+            is_base_and_derived<boost::serialization::basic_traits,T>,
+            traits_class_version<T>,
+            mpl::int_<0>
+        >::type type;
+    BOOST_STATIC_CONSTANT(unsigned int, value = version::type::value);
+};
+
+} // namespace serialization
+} // namespace boost
+
+// specify the current version number for the class
+#define BOOST_CLASS_VERSION(T, N)                                      \
+namespace boost {                                                      \
+namespace serialization {                                              \
+template<>                                                             \
+struct version<T >                                                     \
+{                                                                      \
+    typedef mpl::int_<N> type;                                         \
+    typedef mpl::integral_c_tag tag;                                   \
+    BOOST_STATIC_CONSTANT(unsigned int, value = version::type::value); \
+    /* require that class info saved when versioning is used */        \
+    /*                                                                 \
+    BOOST_STATIC_ASSERT((                                              \
+        mpl::or_<                                                      \
+            mpl::equal_to<                                             \
+                mpl::int_<0>,                                          \
+                mpl::int_<N>                                           \
+            >,                                                         \
+            mpl::equal_to<                                             \
+                implementation_level<T>,                               \
+                mpl::int_<object_class_info>                           \
+            >                                                          \
+        >::value                                                       \
+    ));                                                                \
+    */                                                                 \
+};                                                                     \
+}                                                                      \
+}
+
+#endif // BOOST_SERIALIZATION_VERSION_HPP