#include <boost/hana/second.hpp>
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
//! @cond
template <typename S>
struct unfold_left_t {
);
}
};
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
#endif // !BOOST_HANA_UNFOLD_LEFT_HPP