Squashed 'third_party/boostorg/serialization/' content from commit 738695b
Change-Id: I48528198ad1f62b90288d249eb2243d4db02fd5d
git-subtree-dir: third_party/boostorg/serialization
git-subtree-split: 738695b70733f9d592a570fb17a505d6a029b48a
diff --git a/include/boost/serialization/wrapper.hpp b/include/boost/serialization/wrapper.hpp
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+#ifndef BOOST_SERIALIZATION_WRAPPER_HPP
+#define BOOST_SERIALIZATION_WRAPPER_HPP
+
+// (C) Copyright 2005-2006 Matthias Troyer
+// 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)
+
+#include <boost/serialization/traits.hpp>
+#include <boost/type_traits/is_base_and_derived.hpp>
+#include <boost/mpl/eval_if.hpp>
+#include <boost/mpl/bool_fwd.hpp>
+
+namespace boost { namespace serialization {
+
+/// the base class for serialization wrappers
+///
+/// wrappers need to be treated differently at various places in the serialization library,
+/// e.g. saving of non-const wrappers has to be possible. Since partial specialization
+// is not supported by all compilers, we derive all wrappers from wrapper_traits.
+
+template<
+ class T,
+ int Level = object_serializable,
+ int Tracking = track_never,
+ unsigned int Version = 0,
+ class ETII = extended_type_info_impl< T >
+>
+struct wrapper_traits :
+ public traits<T,Level,Tracking,Version,ETII,mpl::true_>
+{};
+
+template<class T>
+struct is_wrapper_impl :
+ boost::mpl::eval_if<
+ boost::is_base_and_derived<basic_traits,T>,
+ boost::mpl::true_,
+ boost::mpl::false_
+ >::type
+{};
+
+template<class T>
+struct is_wrapper {
+ typedef typename is_wrapper_impl<const T>::type type;
+};
+
+} // serialization
+} // boost
+
+// A macro to define that a class is a wrapper
+#define BOOST_CLASS_IS_WRAPPER(T) \
+namespace boost { \
+namespace serialization { \
+template<> \
+struct is_wrapper_impl<const T> : boost::mpl::true_ {}; \
+} \
+} \
+/**/
+
+#endif //BOOST_SERIALIZATION_WRAPPER_HPP