35         assert(r.second);  in main()
39         assert(m.begin()->second == DefaultOnly());  in main()
43         assert(r.second);  in main()
47         assert(std::next(m.begin())->second == DefaultOnly());  in main()
51         assert(!r.second);  in main()
55         assert(std::next(m.begin())->second == DefaultOnly());  in main()
65         assert(r.second);  in main()
69         assert(m.begin()->second == Emplaceable());  in main()
72         assert(r.second);  in main()
76         assert(m.begin()->second == Emplaceable(2, 3.5));  in main()
79         assert(!r.second);  in main()
83         assert(m.begin()->second == Emplaceable(2, 3.5));  in main()
90         assert(r.second);  in main()
94         assert(m.begin()->second == 3.5);  in main()
102         assert(r.second);  in main()
106         assert(m.begin()->second == DefaultOnly());  in main()
110         assert(r.second);  in main()
114         assert(std::next(m.begin())->second == DefaultOnly());  in main()
118         assert(!r.second);  in main()
122         assert(std::next(m.begin())->second == DefaultOnly());  in main()
132         assert(r.second);  in main()
136         assert(m.begin()->second == Emplaceable());  in main()
139         assert(r.second);  in main()
143         assert(m.begin()->second == Emplaceable(2, 3.5));  in main()
146         assert(!r.second);  in main()
150         assert(m.begin()->second == Emplaceable(2, 3.5));  in main()
157         assert(r.second);  in main()
161         assert(m.begin()->second == 3.5);  in main()