1 //===----------------------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 // <unordered_map>
11 
12 // unordered_multimap(unordered_multimap&&)
13 //        noexcept(is_nothrow_move_constructible<allocator_type>::value &&
14 //                 is_nothrow_move_constructible<key_compare>::value);
15 
16 // This tests a conforming extension
17 
18 #include <unordered_map>
19 #include <cassert>
20 
21 #include "../../../MoveOnly.h"
22 #include "../../../test_allocator.h"
23 
24 template <class T>
25 struct some_comp
26 {
27     typedef T value_type;
28     some_comp(const some_comp&);
29 };
30 
31 template <class T>
32 struct some_hash
33 {
34     typedef T value_type;
35     some_hash();
36     some_hash(const some_hash&);
37 };
38 
39 int main()
40 {
41 #if __has_feature(cxx_noexcept)
42     {
43         typedef std::unordered_multimap<MoveOnly, MoveOnly> C;
44         static_assert(std::is_nothrow_move_constructible<C>::value, "");
45     }
46     {
47         typedef std::unordered_multimap<MoveOnly, MoveOnly, std::hash<MoveOnly>,
48                            std::equal_to<MoveOnly>, test_allocator<std::pair<const MoveOnly, MoveOnly>>> C;
49         static_assert(std::is_nothrow_move_constructible<C>::value, "");
50     }
51     {
52         typedef std::unordered_multimap<MoveOnly, MoveOnly, std::hash<MoveOnly>,
53                           std::equal_to<MoveOnly>, other_allocator<std::pair<const MoveOnly, MoveOnly>>> C;
54         static_assert(std::is_nothrow_move_constructible<C>::value, "");
55     }
56     {
57         typedef std::unordered_multimap<MoveOnly, MoveOnly, some_hash<MoveOnly>> C;
58         static_assert(!std::is_nothrow_move_constructible<C>::value, "");
59     }
60     {
61         typedef std::unordered_multimap<MoveOnly, MoveOnly, std::hash<MoveOnly>,
62                                                          some_comp<MoveOnly>> C;
63         static_assert(!std::is_nothrow_move_constructible<C>::value, "");
64     }
65 #endif
66 }
67