36     using OwningView = std::ranges::owning_view<ComparableIters>;  in test()  typedef
37     static_assert(HasEmpty<OwningView&>);  in test()
38     static_assert(HasEmpty<OwningView&&>);  in test()
39     static_assert(!HasEmpty<const OwningView&>);  in test()
40     static_assert(!HasEmpty<const OwningView&&>);  in test()
51     using OwningView = std::ranges::owning_view<NoEmpty>;  in test()  typedef
52     static_assert(!HasEmpty<OwningView&>);  in test()
53     static_assert(!HasEmpty<OwningView&&>);  in test()
54     static_assert(!HasEmpty<const OwningView&>);  in test()
55     static_assert(!HasEmpty<const OwningView&&>);  in test()
67     using OwningView = std::ranges::owning_view<EmptyMember>;  in test()  typedef
68     static_assert(std::ranges::range<OwningView&>);  in test()
69     static_assert(!std::ranges::range<const OwningView&>); // no begin/end  in test()
70     static_assert(HasEmpty<OwningView&>);  in test()
71     static_assert(HasEmpty<OwningView&&>);  in test()
72     static_assert(HasEmpty<const OwningView&>); // but it still has empty()  in test()
73     static_assert(HasEmpty<const OwningView&&>);  in test()