+//-----------------------------------------------------------------------------
+// boost aligned_storage.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2002-2003
+// Eric Friedman, Itay Maman
+//
+// 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_TT_ALIGNED_STORAGE_HPP
+#define BOOST_TT_ALIGNED_STORAGE_HPP
+
+#include <cstddef> // for std::size_t
+
+#include "boost/config.hpp"
+#include "boost/detail/workaround.hpp"
+#include "boost/type_traits/alignment_of.hpp"
+#include "boost/type_traits/type_with_alignment.hpp"
+#include "boost/type_traits/is_pod.hpp"
+#include "boost/type_traits/conditional.hpp"
+
+namespace boost {
+
+namespace detail { namespace aligned_storage {
+
+BOOST_STATIC_CONSTANT(
+ std::size_t
+ , alignment_of_max_align = ::boost::alignment_of<boost::detail::max_align>::value
+ );
+
+//
+// To be TR1 conforming this must be a POD type:
+//
+template <
+ std::size_t size_
+ , std::size_t alignment_
+>
+struct aligned_storage_imp
+{
+ union data_t
+ {
+ char buf[size_];
+
+ typename ::boost::type_with_alignment<alignment_>::type align_;
+ } data_;
+ void* address() const { return const_cast<aligned_storage_imp*>(this); }
+};
+template <std::size_t size>
+struct aligned_storage_imp<size, std::size_t(-1)>
+{
+ union data_t
+ {
+ char buf[size];
+ ::boost::detail::max_align align_;
+ } data_;
+ void* address() const { return const_cast<aligned_storage_imp*>(this); }
+};
+
+template< std::size_t alignment_ >
+struct aligned_storage_imp<0u,alignment_>
+{
+ /* intentionally empty */
+ void* address() const { return 0; }
+};