#include <boost/hana/core/when.hpp>
-BOOST_HANA_NAMESPACE_BEGIN
+namespace boost { namespace hana {
//! Conditionally execute one of two branches based on a condition.
//! @ingroup group-Logical
//!
constexpr decltype(auto) operator()(Cond&& cond, Then&& then, Else&& else_) const;
};
- constexpr eval_if_t eval_if{};
+ BOOST_HANA_INLINE_VARIABLE constexpr eval_if_t eval_if{};
#endif
-BOOST_HANA_NAMESPACE_END
+}} // end namespace boost::hana
#endif // !BOOST_HANA_FWD_EVAL_IF_HPP