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Diffstat (limited to 'boost/hana/detail/nested_than.hpp')
-rw-r--r-- | boost/hana/detail/nested_than.hpp | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/boost/hana/detail/nested_than.hpp b/boost/hana/detail/nested_than.hpp new file mode 100644 index 0000000000..fce96eecf0 --- /dev/null +++ b/boost/hana/detail/nested_than.hpp @@ -0,0 +1,29 @@ +/*! +@file +Defines `boost::hana::detail::nested_than`. + +@copyright Louis Dionne 2013-2016 +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_DETAIL_NESTED_THAN_HPP +#define BOOST_HANA_DETAIL_NESTED_THAN_HPP + +#include <boost/hana/detail/nested_than_fwd.hpp> + +#include <boost/hana/config.hpp> +#include <boost/hana/functional/flip.hpp> +#include <boost/hana/functional/partial.hpp> + + +BOOST_HANA_NAMESPACE_BEGIN namespace detail { + //! @cond + template <typename Algorithm> + template <typename X> + constexpr decltype(auto) nested_than_t<Algorithm>::operator()(X&& x) const + { return hana::partial(hana::flip(Algorithm{}), static_cast<X&&>(x)); } + //! @endcond +} BOOST_HANA_NAMESPACE_END + +#endif // !BOOST_HANA_DETAIL_NESTED_THAN_HPP |