/*! @file Defines `boost::hana::Comparable`. @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_COMPARABLE_HPP #define BOOST_HANA_CONCEPT_COMPARABLE_HPP #include <boost/hana/fwd/concept/comparable.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/equal.hpp> namespace boost { namespace hana { template <typename T> struct Comparable : hana::integral_constant<bool, !is_default<equal_impl<typename tag_of<T>::type, typename tag_of<T>::type>>::value > { }; }} // end namespace boost::hana #endif // !BOOST_HANA_CONCEPT_COMPARABLE_HPP