1 /*! 2 @file 3 Defines an equivalent to the proposed `std::void_t`. 4 5 @copyright Louis Dionne 2013-2017 6 Distributed under the Boost Software License, Version 1.0. 7 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt) 8 */ 9 10 #ifndef BOOST_HANA_DETAIL_VOID_T_HPP 11 #define BOOST_HANA_DETAIL_VOID_T_HPP 12 13 #include <boost/hana/config.hpp> 14 15 16 BOOST_HANA_NAMESPACE_BEGIN namespace detail { 17 template <typename ...> 18 using void_t = void; 19 } BOOST_HANA_NAMESPACE_END 20 21 #endif // !BOOST_HANA_DETAIL_VOID_T_HPP 22