diff options
Diffstat (limited to 'boost/hana/concept/iterable.hpp')
| -rw-r--r-- | boost/hana/concept/iterable.hpp | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/boost/hana/concept/iterable.hpp b/boost/hana/concept/iterable.hpp index 78c1914077..9cf68b7b43 100644 --- a/boost/hana/concept/iterable.hpp +++ b/boost/hana/concept/iterable.hpp @@ -12,22 +12,24 @@ Distributed under the Boost Software License, Version 1.0. #include <boost/hana/fwd/concept/iterable.hpp> -#include <boost/hana/config.hpp> #include <boost/hana/at.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/drop_front.hpp> #include <boost/hana/is_empty.hpp> BOOST_HANA_NAMESPACE_BEGIN template <typename It> - struct Iterable { - using Tag = typename tag_of<It>::type; - static constexpr bool value = !is_default<at_impl<Tag>>::value && - !is_default<drop_front_impl<Tag>>::value && - !is_default<is_empty_impl<Tag>>::value; - }; + struct Iterable + : hana::integral_constant<bool, + !is_default<at_impl<typename tag_of<It>::type>>::value && + !is_default<drop_front_impl<typename tag_of<It>::type>>::value && + !is_default<is_empty_impl<typename tag_of<It>::type>>::value + > + { }; BOOST_HANA_NAMESPACE_END #endif // !BOOST_HANA_CONCEPT_ITERABLE_HPP |