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(const key_type& __k) 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 "test_macros.h"
27#include "min_allocator.h"
28
29int 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        const C c(std::begin(a), std::end(a));
44        size_t bc = c.bucket_count();
45        assert(bc >= 7);
46        for (size_t i = 0; i < 13; ++i)
47            LIBCPP_ASSERT(c.bucket(i) == i % bc);
48    }
49#if TEST_STD_VER >= 11
50    {
51        typedef std::unordered_multimap<int, std::string, std::hash<int>, std::equal_to<int>,
52                            min_allocator<std::pair<const int, std::string>>> C;
53        typedef std::pair<int, std::string> P;
54        P a[] =
55        {
56            P(1, "one"),
57            P(2, "two"),
58            P(3, "three"),
59            P(4, "four"),
60            P(1, "four"),
61            P(2, "four"),
62        };
63        const C c(std::begin(a), std::end(a));
64        size_t bc = c.bucket_count();
65        assert(bc >= 7);
66        for (size_t i = 0; i < 13; ++i)
67            LIBCPP_ASSERT(c.bucket(i) == i % bc);
68    }
69#endif
70#if _LIBCPP_DEBUG_LEVEL >= 1
71    {
72        typedef std::unordered_multimap<int, std::string> C;
73        C c;
74        C::size_type i = c.bucket(3);
75        assert(false);
76    }
77#endif
78}
79