#include <utility>
-BOOST_HANA_NAMESPACE_BEGIN namespace detail {
+namespace boost { namespace hana { namespace detail {
template <std::size_t i, std::size_t N, bool Done>
struct index_if_helper;
using type = typename index_if_helper<0, sizeof...(Xs), false>
::template f<Pred, Xs...>;
};
-} BOOST_HANA_NAMESPACE_END
+} }} // end namespace boost::hana
#endif // !BOOST_HANA_DETAIL_INDEX_IF_HPP