#include <boost/hana/if.hpp>
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
//! @cond
template <typename X, typename Y>
constexpr decltype(auto) or_t::operator()(X&& x, Y&& y) const {
return hana::if_(x, x, static_cast<Y&&>(y));
}
};
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
#endif // !BOOST_HANA_OR_HPP