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 // iterator       begin()        {return __table_.begin();}
17 // iterator       end()          {return __table_.end();}
18 // const_iterator begin()  const {return __table_.begin();}
19 // const_iterator end()    const {return __table_.end();}
20 // const_iterator cbegin() const {return __table_.begin();}
21 // const_iterator cend()   const {return __table_.end();}
22 
23 #include <unordered_map>
24 #include <string>
25 #include <cassert>
26 
27 #include "../../min_allocator.h"
28 
29 int main()
30 {
31     {
32         typedef std::unordered_multimap<int, std::string> C;
33         typedef std::pair<int, std::string> P;
34         P a[] =
35         {
36             P(1, "one"),
37             P(2, "two"),
38             P(3, "three"),
39             P(4, "four"),
40             P(1, "four"),
41             P(2, "four"),
42         };
43         C c(a, a + sizeof(a)/sizeof(a[0]));
44         assert(c.bucket_count() >= 7);
45         assert(c.size() == 6);
46         assert(std::distance(c.begin(), c.end()) == c.size());
47         assert(std::distance(c.cbegin(), c.cend()) == c.size());
48         C::iterator i;
49         i = c.begin();
50         i->second = "ONE";
51         assert(i->second == "ONE");
52     }
53     {
54         typedef std::unordered_multimap<int, std::string> C;
55         typedef std::pair<int, std::string> P;
56         P a[] =
57         {
58             P(1, "one"),
59             P(2, "two"),
60             P(3, "three"),
61             P(4, "four"),
62             P(1, "four"),
63             P(2, "four"),
64         };
65         const C c(a, a + sizeof(a)/sizeof(a[0]));
66         assert(c.bucket_count() >= 7);
67         assert(c.size() == 6);
68         assert(std::distance(c.begin(), c.end()) == c.size());
69         assert(std::distance(c.cbegin(), c.cend()) == c.size());
70         C::const_iterator i;
71     }
72 #if __cplusplus >= 201103L
73     {
74         typedef std::unordered_multimap<int, std::string, std::hash<int>, std::equal_to<int>,
75                             min_allocator<std::pair<const int, std::string>>> C;
76         typedef std::pair<int, std::string> P;
77         P a[] =
78         {
79             P(1, "one"),
80             P(2, "two"),
81             P(3, "three"),
82             P(4, "four"),
83             P(1, "four"),
84             P(2, "four"),
85         };
86         C c(a, a + sizeof(a)/sizeof(a[0]));
87         assert(c.bucket_count() >= 7);
88         assert(c.size() == 6);
89         assert(std::distance(c.begin(), c.end()) == c.size());
90         assert(std::distance(c.cbegin(), c.cend()) == c.size());
91         C::iterator i;
92         i = c.begin();
93         i->second = "ONE";
94         assert(i->second == "ONE");
95     }
96     {
97         typedef std::unordered_multimap<int, std::string, std::hash<int>, std::equal_to<int>,
98                             min_allocator<std::pair<const int, std::string>>> C;
99         typedef std::pair<int, std::string> P;
100         P a[] =
101         {
102             P(1, "one"),
103             P(2, "two"),
104             P(3, "three"),
105             P(4, "four"),
106             P(1, "four"),
107             P(2, "four"),
108         };
109         const C c(a, a + sizeof(a)/sizeof(a[0]));
110         assert(c.bucket_count() >= 7);
111         assert(c.size() == 6);
112         assert(std::distance(c.begin(), c.end()) == c.size());
113         assert(std::distance(c.cbegin(), c.cend()) == c.size());
114         C::const_iterator i;
115     }
116 #endif
117 #if _LIBCPP_STD_VER > 11
118     { // N3644 testing
119         typedef std::unordered_multimap<int,double> C;
120         C::iterator ii1{}, ii2{};
121         C::iterator ii4 = ii1;
122         C::const_iterator cii{};
123         assert ( ii1 == ii2 );
124         assert ( ii1 == ii4 );
125         assert ( ii1 == cii );
126 
127         assert ( !(ii1 != ii2 ));
128         assert ( !(ii1 != cii ));
129     }
130 #endif
131 }
132