[/ Boost.Optional Copyright (c) 2003-2007 Fernando Luis Cacciola Carballal 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) ] [section Dependencies and Portability] The implementation uses `type_traits/alignment_of.hpp` and `type_traits/type_with_alignment.hpp` [endsect]