diff options
Diffstat (limited to 'boost/hana/concept/orderable.hpp')
| -rw-r--r-- | boost/hana/concept/orderable.hpp | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/boost/hana/concept/orderable.hpp b/boost/hana/concept/orderable.hpp index 5461332cd4..1e9303d204 100644 --- a/boost/hana/concept/orderable.hpp +++ b/boost/hana/concept/orderable.hpp @@ -15,15 +15,18 @@ Distributed under the Boost Software License, Version 1.0. #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/less.hpp> BOOST_HANA_NAMESPACE_BEGIN template <typename Ord> - struct Orderable { - using Tag = typename tag_of<Ord>::type; - static constexpr bool value = !is_default<less_impl<Tag, Tag>>::value; - }; + struct Orderable + : hana::integral_constant<bool, + !is_default<less_impl<typename tag_of<Ord>::type, + typename tag_of<Ord>::type>>::value + > + { }; BOOST_HANA_NAMESPACE_END #endif // !BOOST_HANA_CONCEPT_ORDERABLE_HPP |