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 // pair<const_iterator, const_iterator> equal_range(const key_type& k) const;
17
18 #include <unordered_map>
19 #include <string>
20 #include <cassert>
21
22 #include "min_allocator.h"
23
main()24 int main()
25 {
26 {
27 typedef std::unordered_multimap<int, std::string> C;
28 typedef C::const_iterator I;
29 typedef std::pair<int, std::string> P;
30 P a[] =
31 {
32 P(10, "ten"),
33 P(20, "twenty"),
34 P(30, "thirty"),
35 P(40, "fourty"),
36 P(50, "fifty"),
37 P(50, "fiftyA"),
38 P(50, "fiftyB"),
39 P(60, "sixty"),
40 P(70, "seventy"),
41 P(80, "eighty"),
42 };
43 const C c(std::begin(a), std::end(a));
44 std::pair<I, I> r = c.equal_range(30);
45 assert(std::distance(r.first, r.second) == 1);
46 assert(r.first->first == 30);
47 assert(r.first->second == "thirty");
48 r = c.equal_range(5);
49 assert(std::distance(r.first, r.second) == 0);
50 r = c.equal_range(50);
51 assert(r.first->first == 50);
52 assert(r.first->second == "fifty");
53 ++r.first;
54 assert(r.first->first == 50);
55 assert(r.first->second == "fiftyA");
56 ++r.first;
57 assert(r.first->first == 50);
58 assert(r.first->second == "fiftyB");
59 }
60 #if __cplusplus >= 201103L
61 {
62 typedef std::unordered_multimap<int, std::string, std::hash<int>, std::equal_to<int>,
63 min_allocator<std::pair<const int, std::string>>> C;
64 typedef C::const_iterator I;
65 typedef std::pair<int, std::string> P;
66 P a[] =
67 {
68 P(10, "ten"),
69 P(20, "twenty"),
70 P(30, "thirty"),
71 P(40, "fourty"),
72 P(50, "fifty"),
73 P(50, "fiftyA"),
74 P(50, "fiftyB"),
75 P(60, "sixty"),
76 P(70, "seventy"),
77 P(80, "eighty"),
78 };
79 const C c(std::begin(a), std::end(a));
80 std::pair<I, I> r = c.equal_range(30);
81 assert(std::distance(r.first, r.second) == 1);
82 assert(r.first->first == 30);
83 assert(r.first->second == "thirty");
84 r = c.equal_range(5);
85 assert(std::distance(r.first, r.second) == 0);
86 r = c.equal_range(50);
87 assert(r.first->first == 50);
88 assert(r.first->second == "fifty");
89 ++r.first;
90 assert(r.first->first == 50);
91 assert(r.first->second == "fiftyA");
92 ++r.first;
93 assert(r.first->first == 50);
94 assert(r.first->second == "fiftyB");
95 }
96 #endif
97 }
98