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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_map
15 
16 // mapped_type& operator[](const key_type& k);
17 
18 #include <unordered_map>
19 #include <string>
20 #include <cassert>
21 
22 #include "../../../MoveOnly.h"
23 #include "min_allocator.h"
24 
main()25 int main()
26 {
27     {
28         typedef std::unordered_map<int, std::string> C;
29         typedef std::pair<int, std::string> P;
30         P a[] =
31         {
32             P(1, "one"),
33             P(2, "two"),
34             P(3, "three"),
35             P(4, "four"),
36             P(1, "four"),
37             P(2, "four"),
38         };
39         C c(a, a + sizeof(a)/sizeof(a[0]));
40         assert(c.size() == 4);
41         c[1] = "ONE";
42         assert(c.at(1) == "ONE");
43         c[11] = "eleven";
44         assert(c.size() == 5);
45         assert(c.at(11) == "eleven");
46     }
47 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
48     {
49         typedef std::unordered_map<MoveOnly, std::string> C;
50         typedef std::pair<int, std::string> P;
51         P a[] =
52         {
53             P(1, "one"),
54             P(2, "two"),
55             P(3, "three"),
56             P(4, "four"),
57             P(1, "four"),
58             P(2, "four"),
59         };
60         C c(a, a + sizeof(a)/sizeof(a[0]));
61         assert(c.size() == 4);
62         c[1] = "ONE";
63         assert(c.at(1) == "ONE");
64         c[11] = "eleven";
65         assert(c.size() == 5);
66         assert(c.at(11) == "eleven");
67     }
68 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
69 #if __cplusplus >= 201103L
70     {
71         typedef std::unordered_map<int, std::string, std::hash<int>, std::equal_to<int>,
72                             min_allocator<std::pair<const int, std::string>>> C;
73         typedef std::pair<int, std::string> P;
74         P a[] =
75         {
76             P(1, "one"),
77             P(2, "two"),
78             P(3, "three"),
79             P(4, "four"),
80             P(1, "four"),
81             P(2, "four"),
82         };
83         C c(a, a + sizeof(a)/sizeof(a[0]));
84         assert(c.size() == 4);
85         c[1] = "ONE";
86         assert(c.at(1) == "ONE");
87         c[11] = "eleven";
88         assert(c.size() == 5);
89         assert(c.at(11) == "eleven");
90     }
91 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
92     {
93         typedef std::unordered_map<MoveOnly, std::string, std::hash<MoveOnly>, std::equal_to<MoveOnly>,
94                             min_allocator<std::pair<const MoveOnly, std::string>>> C;
95         typedef std::pair<int, std::string> P;
96         P a[] =
97         {
98             P(1, "one"),
99             P(2, "two"),
100             P(3, "three"),
101             P(4, "four"),
102             P(1, "four"),
103             P(2, "four"),
104         };
105         C c(a, a + sizeof(a)/sizeof(a[0]));
106         assert(c.size() == 4);
107         c[1] = "ONE";
108         assert(c.at(1) == "ONE");
109         c[11] = "eleven";
110         assert(c.size() == 5);
111         assert(c.at(11) == "eleven");
112     }
113 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
114 #endif
115 }
116