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 // size_type bucket_size(size_type n) const
17
18 #ifdef _LIBCPP_DEBUG
19 #define _LIBCPP_ASSERT(x, m) ((x) ? (void)0 : std::exit(0))
20 #endif
21
22 #include <unordered_map>
23 #include <string>
24 #include <cassert>
25
26 #include "min_allocator.h"
27
main()28 int main()
29 {
30 {
31 typedef std::unordered_multimap<int, std::string> C;
32 typedef std::pair<int, std::string> P;
33 P a[] =
34 {
35 P(1, "one"),
36 P(2, "two"),
37 P(3, "three"),
38 P(4, "four"),
39 P(1, "four"),
40 P(2, "four"),
41 };
42 const C c(std::begin(a), std::end(a));
43 assert(c.bucket_count() >= 7);
44 assert(c.bucket_size(0) == 0);
45 assert(c.bucket_size(1) == 2);
46 assert(c.bucket_size(2) == 2);
47 assert(c.bucket_size(3) == 1);
48 assert(c.bucket_size(4) == 1);
49 assert(c.bucket_size(5) == 0);
50 assert(c.bucket_size(6) == 0);
51 }
52 #if __cplusplus >= 201103L
53 {
54 typedef std::unordered_multimap<int, std::string, std::hash<int>, std::equal_to<int>,
55 min_allocator<std::pair<const int, std::string>>> C;
56 typedef std::pair<int, std::string> P;
57 P a[] =
58 {
59 P(1, "one"),
60 P(2, "two"),
61 P(3, "three"),
62 P(4, "four"),
63 P(1, "four"),
64 P(2, "four"),
65 };
66 const C c(std::begin(a), std::end(a));
67 assert(c.bucket_count() >= 7);
68 assert(c.bucket_size(0) == 0);
69 assert(c.bucket_size(1) == 2);
70 assert(c.bucket_size(2) == 2);
71 assert(c.bucket_size(3) == 1);
72 assert(c.bucket_size(4) == 1);
73 assert(c.bucket_size(5) == 0);
74 assert(c.bucket_size(6) == 0);
75 }
76 #endif
77 #if _LIBCPP_DEBUG_LEVEL >= 1
78 {
79 typedef std::unordered_multimap<int, std::string> C;
80 C c;
81 C::size_type i = c.bucket_size(3);
82 assert(false);
83 }
84 #endif
85 }
86