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 // template <class Key, class T, class Hash = hash<Key>, class Pred = equal_to<Key>,
13 // class Alloc = allocator<pair<const Key, T>>>
14 // class unordered_multimap
15
16 // template <class... Args>
17 // iterator emplace(Args&&... args);
18
19 #include <unordered_map>
20 #include <cassert>
21
22 #include "../../../Emplaceable.h"
23 #include "min_allocator.h"
24
main()25 int main()
26 {
27 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
28 {
29 typedef std::unordered_multimap<int, Emplaceable> C;
30 typedef C::iterator R;
31 C c;
32 R r = c.emplace(std::piecewise_construct, std::forward_as_tuple(3),
33 std::forward_as_tuple());
34 assert(c.size() == 1);
35 assert(r->first == 3);
36 assert(r->second == Emplaceable());
37
38 r = c.emplace(std::pair<const int, Emplaceable>(4, Emplaceable(5, 6)));
39 assert(c.size() == 2);
40 assert(r->first == 4);
41 assert(r->second == Emplaceable(5, 6));
42
43 r = c.emplace(std::piecewise_construct, std::forward_as_tuple(5),
44 std::forward_as_tuple(6, 7));
45 assert(c.size() == 3);
46 assert(r->first == 5);
47 assert(r->second == Emplaceable(6, 7));
48 }
49 #if __cplusplus >= 201103L
50 {
51 typedef std::unordered_multimap<int, Emplaceable, std::hash<int>, std::equal_to<int>,
52 min_allocator<std::pair<const int, Emplaceable>>> C;
53 typedef C::iterator R;
54 C c;
55 R r = c.emplace(std::piecewise_construct, std::forward_as_tuple(3),
56 std::forward_as_tuple());
57 assert(c.size() == 1);
58 assert(r->first == 3);
59 assert(r->second == Emplaceable());
60
61 r = c.emplace(std::pair<const int, Emplaceable>(4, Emplaceable(5, 6)));
62 assert(c.size() == 2);
63 assert(r->first == 4);
64 assert(r->second == Emplaceable(5, 6));
65
66 r = c.emplace(std::piecewise_construct, std::forward_as_tuple(5),
67 std::forward_as_tuple(6, 7));
68 assert(c.size() == 3);
69 assert(r->first == 5);
70 assert(r->second == Emplaceable(6, 7));
71 }
72 #endif
73 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
74 }
75