#ifndef BOOST_MP11_DETAIL_MP_VOID_HPP_INCLUDED #define BOOST_MP11_DETAIL_MP_VOID_HPP_INCLUDED // Copyright 2015-2017 Peter Dimov. // // 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 namespace boost { namespace mp11 { // mp_void<T...> namespace detail { template<class... T> struct mp_void_impl { using type = void; }; } // namespace detail template<class... T> using mp_void = typename detail::mp_void_impl<T...>::type; } // namespace mp11 } // namespace boost #endif // #ifndef BOOST_MP11_DETAIL_MP_VOID_HPP_INCLUDED