42     std::stack stk(v);  in main()  local
44     static_assert(std::is_same_v<decltype(stk), std::stack<int, std::vector<int>>>, "");  in main()
45     assert(stk.size() == v.size());  in main()
46     assert(stk.top() == v.back());  in main()
51     std::stack stk(l, test_allocator<long>(0,2)); // different allocator  in main()
52 …static_assert(std::is_same_v<decltype(stk)::container_type, std::list<long, test_allocator<long>>>…  in main()
53     static_assert(std::is_same_v<decltype(stk)::value_type, long>, "");  in main()
54     assert(stk.size() == 10);  in main()
55     assert(stk.top() == 19);  in main()
69     std::stack stk(source); // stack(stack &)  in main()  local
70     static_assert(std::is_same_v<decltype(stk)::value_type, A>, "");  in main()
71     static_assert(std::is_same_v<decltype(stk)::container_type, std::deque<A>>, "");  in main()
72     assert(stk.size() == 0);  in main()
85         std::stack stk(cont, Alloc(2));  in main()  local
86         static_assert(std::is_same_v<decltype(stk), std::stack<T, Cont>>);  in main()
91         std::stack stk(cont, ConvertibleToAlloc(2));  in main()  local
92         static_assert(std::is_same_v<decltype(stk), std::stack<T, Cont>>);  in main()
97         std::stack stk(std::move(cont), Alloc(2));  in main()  local
98         static_assert(std::is_same_v<decltype(stk), std::stack<T, Cont>>);  in main()
103         std::stack stk(std::move(cont), ConvertibleToAlloc(2));  in main()  local
104         static_assert(std::is_same_v<decltype(stk), std::stack<T, Cont>>);  in main()
118         std::stack stk(source, Alloc(2));  in main()  local
119         static_assert(std::is_same_v<decltype(stk), std::stack<T, Cont>>);  in main()
124         std::stack stk(source, ConvertibleToAlloc(2));  in main()  local
125         static_assert(std::is_same_v<decltype(stk), std::stack<T, Cont>>);  in main()
130         std::stack stk(std::move(source), Alloc(2));  in main()  local
131         static_assert(std::is_same_v<decltype(stk), std::stack<T, Cont>>);  in main()
136         std::stack stk(std::move(source), ConvertibleToAlloc(2));  in main()  local
137         static_assert(std::is_same_v<decltype(stk), std::stack<T, Cont>>);  in main()