#include <boost/hana/core/when.hpp>
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
//! Returns whether all the keys of the structure are true-valued.
//! @ingroup group-Searchable
//!
constexpr auto operator()(Xs&& xs) const;
};
- constexpr all_t all{};
+ BOOST_HANA_INLINE_VARIABLE constexpr all_t all{};
#endif
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
#endif // !BOOST_HANA_FWD_ALL_HPP