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/base_object.hpp b/include/boost/serialization/base_object.hpp
new file mode 100644
index 0000000..1a82cec
--- /dev/null
+++ b/include/boost/serialization/base_object.hpp
@@ -0,0 +1,100 @@
+#ifndef BOOST_SERIALIZATION_BASE_OBJECT_HPP
+#define BOOST_SERIALIZATION_BASE_OBJECT_HPP
+
+// MS compatible compilers support #pragma once
+#if defined(_MSC_VER)
+# pragma once
+#endif
+
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// base_object.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.
+
+// if no archive headers have been included this is a no op
+// this is to permit BOOST_EXPORT etc to be included in a
+// file declaration header
+
+#include <boost/config.hpp>
+#include <boost/detail/workaround.hpp>
+
+#include <boost/mpl/eval_if.hpp>
+#include <boost/mpl/int.hpp>
+#include <boost/mpl/identity.hpp>
+
+#include <boost/type_traits/is_base_and_derived.hpp>
+#include <boost/type_traits/is_pointer.hpp>
+#include <boost/type_traits/is_const.hpp>
+#include <boost/type_traits/is_polymorphic.hpp>
+
+#include <boost/static_assert.hpp>
+#include <boost/serialization/access.hpp>
+#include <boost/serialization/force_include.hpp>
+#include <boost/serialization/void_cast_fwd.hpp>
+
+namespace boost {
+namespace serialization {
+
+namespace detail
+{
+ // get the base type for a given derived type
+ // preserving the const-ness
+ template<class B, class D>
+ struct base_cast
+ {
+ typedef typename
+ mpl::if_<
+ is_const<D>,
+ const B,
+ B
+ >::type type;
+ BOOST_STATIC_ASSERT(is_const<type>::value == is_const<D>::value);
+ };
+
+ // only register void casts if the types are polymorphic
+ template<class Base, class Derived>
+ struct base_register
+ {
+ struct polymorphic {
+ static void const * invoke(){
+ Base const * const b = 0;
+ Derived const * const d = 0;
+ return & void_cast_register(d, b);
+ }
+ };
+ struct non_polymorphic {
+ static void const * invoke(){
+ return 0;
+ }
+ };
+ static void const * invoke(){
+ typedef typename mpl::eval_if<
+ is_polymorphic<Base>,
+ mpl::identity<polymorphic>,
+ mpl::identity<non_polymorphic>
+ >::type type;
+ return type::invoke();
+ }
+ };
+
+} // namespace detail
+template<class Base, class Derived>
+typename detail::base_cast<Base, Derived>::type &
+base_object(Derived &d)
+{
+ BOOST_STATIC_ASSERT(( is_base_and_derived<Base,Derived>::value));
+ BOOST_STATIC_ASSERT(! is_pointer<Derived>::value);
+ typedef typename detail::base_cast<Base, Derived>::type type;
+ detail::base_register<type, Derived>::invoke();
+ return access::cast_reference<type, Derived>(d);
+}
+
+} // namespace serialization
+} // namespace boost
+
+#endif // BOOST_SERIALIZATION_BASE_OBJECT_HPP