/*! @file Defines `boost::hana::Applicative`. @copyright Louis Dionne 2013-2017 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_APPLICATIVE_HPP #define BOOST_HANA_CONCEPT_APPLICATIVE_HPP #include <boost/hana/fwd/concept/applicative.hpp> #include <boost/hana/ap.hpp> #include <boost/hana/config.hpp> #include <boost/hana/core/default.hpp> #include <boost/hana/core/tag_of.hpp> #include <boost/hana/detail/integral_constant.hpp> #include <boost/hana/lift.hpp> BOOST_HANA_NAMESPACE_BEGIN template <typename A> struct Applicative : hana::integral_constant<bool, !is_default<ap_impl<typename tag_of<A>::type>>::value && !is_default<lift_impl<typename tag_of<A>::type>>::value > { }; BOOST_HANA_NAMESPACE_END #endif // !BOOST_HANA_CONCEPT_APPLICATIVE_HPP