#include <utility> // std::declval, std::index_sequence
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
//! @cond
template <typename Xs, typename Predicate>
constexpr auto sort_t::operator()(Xs&& xs, Predicate&& pred) const {
static constexpr auto apply(Xs&& xs)
{ return sort_impl::apply(static_cast<Xs&&>(xs), hana::less); }
};
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
#endif // !BOOST_HANA_SORT_HPP