xref: /llvm-project/libcxx/test/std/containers/unord/unord.multimap/count.pass.cpp (revision 3cd4531b9ba421d1d096e746d787fe3039a546bb)
1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // <unordered_map>
10 
11 // template <class Key, class T, class Hash = hash<Key>, class Pred = equal_to<Key>,
12 //           class Alloc = allocator<pair<const Key, T>>>
13 // class unordered_multimap
14 
15 // size_type count(const key_type& k) const;
16 
17 #include <unordered_map>
18 #include <string>
19 #include <cassert>
20 #include <iterator>
21 
22 #include "test_macros.h"
23 #include "min_allocator.h"
24 
main(int,char **)25 int main(int, char**)
26 {
27     {
28         typedef std::unordered_multimap<int, std::string> C;
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, "forty"),
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         assert(c.count(30) == 1);
45         assert(c.count(50) == 3);
46         assert(c.count(5) == 0);
47     }
48 #if TEST_STD_VER >= 11
49     {
50         typedef std::unordered_multimap<int, std::string, std::hash<int>, std::equal_to<int>,
51                             min_allocator<std::pair<const int, std::string>>> C;
52         typedef std::pair<int, std::string> P;
53         P a[] =
54         {
55             P(10, "ten"),
56             P(20, "twenty"),
57             P(30, "thirty"),
58             P(40, "forty"),
59             P(50, "fifty"),
60             P(50, "fiftyA"),
61             P(50, "fiftyB"),
62             P(60, "sixty"),
63             P(70, "seventy"),
64             P(80, "eighty"),
65         };
66         const C c(std::begin(a), std::end(a));
67         assert(c.count(30) == 1);
68         assert(c.count(50) == 3);
69         assert(c.count(5) == 0);
70     }
71 #endif
72 
73   return 0;
74 }
75