46 struct ConstNotRange : std::ranges::view_base {
59     std::ranges::join_view jv(outer);  in test()
60     assert(jv.end() == std::ranges::next(jv.begin(), 16));  in test()
61     assert(std::as_const(jv).end() == std::ranges::next(std::as_const(jv).begin(), 16));  in test()
65     static_assert(std::ranges::common_range<decltype(jv)>);  in test()
66     static_assert(std::ranges::common_range<const decltype(jv)>);  in test()
74     std::ranges::join_view jv(outer);  in test()
75     assert(jv.end() == std::ranges::next(jv.begin(), 12));  in test()
76     assert(std::as_const(jv).end() == std::ranges::next(std::as_const(jv).begin(), 12));  in test()
80     static_assert(!std::ranges::common_range<decltype(jv)>);  in test()
81     static_assert(!std::ranges::common_range<const decltype(jv)>);  in test()
89     std::ranges::join_view jv(outer);  in test()
90     assert(jv.end() == std::ranges::next(jv.begin(), 12));  in test()
91     assert(std::as_const(jv).end() == std::ranges::next(std::as_const(jv).begin(), 12));  in test()
95     static_assert(!std::ranges::common_range<decltype(jv)>);  in test()
96     static_assert(!std::ranges::common_range<const decltype(jv)>);  in test()
104     std::ranges::join_view jv(outer);  in test()
105     assert(jv.end() == std::ranges::next(jv.begin(), 8));  in test()
108     static_assert(!std::ranges::common_range<decltype(jv)>);  in test()
109     static_assert(!std::ranges::common_range<const decltype(jv)>);  in test()
117     std::ranges::join_view jv(outer);  in test()
118     assert(jv.end() == std::ranges::next(jv.begin(), 16));  in test()
119     assert(std::as_const(jv).end() == std::ranges::next(std::as_const(jv).begin(), 16));  in test()
123     static_assert(!std::ranges::common_range<decltype(jv)>);  in test()
124     static_assert(!std::ranges::common_range<const decltype(jv)>);  in test()
132     std::ranges::join_view jv(outer);  in test()
133     assert(jv.end() == std::ranges::next(jv.begin(), 16));  in test()
134     assert(std::as_const(jv).end() == std::ranges::next(std::as_const(jv).begin(), 16));  in test()
138     static_assert(!std::ranges::common_range<decltype(jv)>);  in test()
139     static_assert(!std::ranges::common_range<const decltype(jv)>);  in test()
147     std::ranges::join_view jv(outer);  in test()
148     assert(jv.end() == std::ranges::next(jv.begin(), 4));  in test()
149     assert(std::as_const(jv).end() == std::ranges::next(std::as_const(jv).begin(), 4));  in test()
153     static_assert(std::ranges::common_range<decltype(jv)>);  in test()
154     static_assert(std::ranges::common_range<const decltype(jv)>);  in test()
162     std::ranges::join_view jv(outer);  in test()
163     assert(jv.end() == std::ranges::next(jv.begin(), 12));  in test()
164     assert(std::as_const(jv).end() == std::ranges::next(std::as_const(jv).begin(), 12));  in test()
168     static_assert(!std::ranges::common_range<decltype(jv)>);  in test()
169     static_assert(!std::ranges::common_range<const decltype(jv)>);  in test()
177     std::ranges::join_view jv(outer);  in test()
178     assert(jv.end() == std::ranges::next(jv.begin(), 12));  in test()
179     assert(std::as_const(jv).end() == std::ranges::next(std::as_const(jv).begin(), 12));  in test()
183     static_assert(!std::ranges::common_range<decltype(jv)>);  in test()
184     static_assert(!std::ranges::common_range<const decltype(jv)>);  in test()
192     std::ranges::join_view jv(outer);  in test()
193     assert(jv.end() == std::ranges::next(jv.begin(), 8));  in test()
196     static_assert(!std::ranges::common_range<decltype(jv)>);  in test()
197     static_assert(!std::ranges::common_range<const decltype(jv)>);  in test()
205     std::ranges::join_view jv(outer);  in test()
206     assert(jv.end() == std::ranges::next(jv.begin(), 16));  in test()
207     assert(std::as_const(jv).end() == std::ranges::next(std::as_const(jv).begin(), 16));  in test()
211     static_assert(!std::ranges::common_range<decltype(jv)>);  in test()
212     static_assert(!std::ranges::common_range<const decltype(jv)>);  in test()
220     std::ranges::join_view jv(outer);  in test()
221     assert(jv.end() == std::ranges::next(jv.begin(), 16));  in test()
222     assert(std::as_const(jv).end() == std::ranges::next(std::as_const(jv).begin(), 16));  in test()
226     static_assert(!std::ranges::common_range<decltype(jv)>);  in test()
227     static_assert(!std::ranges::common_range<const decltype(jv)>);  in test()
231     std::ranges::join_view jv(ConstNotRange{});  in test()
238     auto jv = std::ranges::join_view(ParentView(children));  in test()
239     assert(jv.end() == std::ranges::next(jv.begin(), 5));  in test()
245     std::ranges::join_view jv(ParentView(children, 0));  in test()
252     std::ranges::join_view jv(ParentView(children, 1));  in test()
253     assert(jv.end() == std::ranges::next(jv.begin(), 4));  in test()
259     std::ranges::join_view jv(ParentView(children, 1));  in test()
260     assert(jv.end() == std::ranges::next(jv.begin()));  in test()
266     std::ranges::join_view jv(ParentView(children, 1));  in test()
273     auto jv = std::ranges::join_view(ParentView(children));  in test()
280     auto jv = std::ranges::join_view(ParentView(children));  in test()
281     assert(jv.end() == std::ranges::next(jv.begin(), 4));  in test()
287     auto jv = std::ranges::join_view(ParentView(children));  in test()
288     assert(jv.end() == std::ranges::next(jv.begin(), 12));  in test()