boost/hana/concept/comparable.hpp
/*!
@file
Defines `boost::hana::Comparable`.
Copyright Louis Dionne 2013-2022
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