/*! @file Defines `boost::hana::Hashable`. @copyright Louis Dionne 2016 @copyright Jason Rice 2016 Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt) */ #ifndef BOOST_HANA_CONCEPT_HASHABLE_HPP #define BOOST_HANA_CONCEPT_HASHABLE_HPP #include #include #include #include #include BOOST_HANA_NAMESPACE_BEGIN template struct Hashable { using Tag = typename tag_of::type; static constexpr bool value = !is_default>::value; }; BOOST_HANA_NAMESPACE_END #endif // !BOOST_HANA_CONCEPT_HASHABLE_HPP