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_set>
11
12// template <class Value, class Hash = hash<Value>, class Pred = equal_to<Value>,
13//           class Alloc = allocator<Value>>
14// class unordered_set
15
16// size_type bucket_count() const;
17
18#include <unordered_set>
19#include <cassert>
20
21#include "../../min_allocator.h"
22
23int main()
24{
25    {
26        typedef std::unordered_set<int> C;
27        typedef C::const_iterator I;
28        typedef int P;
29        const C c;
30        assert(c.bucket_count() == 0);
31    }
32    {
33        typedef std::unordered_set<int> C;
34        typedef C::const_iterator I;
35        typedef int P;
36        P a[] =
37        {
38            P(10),
39            P(20),
40            P(30),
41            P(40),
42            P(50),
43            P(60),
44            P(70),
45            P(80)
46        };
47        const C c(std::begin(a), std::end(a));
48        assert(c.bucket_count() >= 11);
49    }
50#if __cplusplus >= 201103L
51    {
52        typedef std::unordered_set<int, std::hash<int>, std::equal_to<int>, min_allocator<int>> C;
53        typedef C::const_iterator I;
54        typedef int P;
55        const C c;
56        assert(c.bucket_count() == 0);
57    }
58    {
59        typedef std::unordered_set<int, std::hash<int>, std::equal_to<int>, min_allocator<int>> C;
60        typedef C::const_iterator I;
61        typedef int P;
62        P a[] =
63        {
64            P(10),
65            P(20),
66            P(30),
67            P(40),
68            P(50),
69            P(60),
70            P(70),
71            P(80)
72        };
73        const C c(std::begin(a), std::end(a));
74        assert(c.bucket_count() >= 11);
75    }
76#endif
77}
78