Added boost header

test/external/boost/variant/detail/over_sequence.hpp

@@ -0,0 +1,95 @@
+//-----------------------------------------------------------------------------
+// boost variant/detail/over_sequence.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003
+// Eric Friedman
+//
+// Portions Copyright (C) 2002 David Abrahams
+//
+// 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)
+
+#ifndef BOOST_VARIANT_DETAIL_OVER_SEQUENCE_HPP
+#define BOOST_VARIANT_DETAIL_OVER_SEQUENCE_HPP
+
+#include "boost/mpl/aux_/config/ctps.hpp"
+#if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
+#   include "boost/mpl/eval_if.hpp"
+#   include "boost/mpl/bool.hpp"
+#   include "boost/mpl/identity.hpp"
+#   include "boost/type.hpp"
+#endif
+
+
+namespace boost {
+namespace detail { namespace variant {
+
+///////////////////////////////////////////////////////////////////////////////
+// (detail) class over_sequence
+//
+// Wrapper used to indicate bounded types for variant are from type sequence.
+//
+template <typename Types>
+struct over_sequence
+{
+    typedef Types type;
+};
+
+///////////////////////////////////////////////////////////////////////////////
+// (detail) metafunction is_over_sequence (modeled on code by David Abrahams)
+//
+// Indicates whether the specified type is of form over_sequence<...> or not.
+//
+
+#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
+
+template <typename T>
+struct is_over_sequence
+    : mpl::false_
+{
+};
+
+template <typename Types>
+struct is_over_sequence< over_sequence<Types> >
+    : mpl::true_
+{
+};
+
+#else // defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
+
+typedef char (&yes_over_sequence_t)[1];
+typedef char (&no_over_sequence_t)[2];
+
+no_over_sequence_t is_over_sequence_test(...);
+
+template<typename T>
+yes_over_sequence_t is_over_sequence_test(
+      type< ::boost::detail::variant::over_sequence<T> >
+    );
+
+template<typename T>
+struct is_over_sequence_impl
+{
+    BOOST_STATIC_CONSTANT(bool, value = (
+          sizeof(is_over_sequence_test(type<T>()))
+          == sizeof(yes_over_sequence_t)
+        ));
+};
+
+template <typename T>
+struct is_over_sequence
+    : mpl::bool_<
+          ::boost::detail::variant::is_over_sequence_impl<T>::value
+        >
+{
+};
+
+#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION workaround
+
+}} // namespace detail::variant
+} // namespace boost
+
+#endif // BOOST_VARIANT_DETAIL_OVER_SEQUENCE_HPP