size_hash_equal_allocator.pass.cpp revision d4badbbc5a4c63fa9c644d4ae78ec0e38564c8dc 
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_map
15
16// unordered_map(size_type n, const hasher& hf, const key_equal& eql, const allocator_type& a);
17
18#include <unordered_map>
19#include <cassert>
20
21#include "test_macros.h"
22#include "../../../NotConstructible.h"
23#include "../../../test_compare.h"
24#include "../../../test_hash.h"
25#include "test_allocator.h"
26#include "min_allocator.h"
27
28int main()
29{
30    {
31        typedef std::unordered_map<NotConstructible, NotConstructible,
32                                   test_hash<std::hash<NotConstructible> >,
33                                   test_compare<std::equal_to<NotConstructible> >,
34                                   test_allocator<std::pair<const NotConstructible,
35                                                                  NotConstructible> >
36                                   > C;
37        C c(7,
38            test_hash<std::hash<NotConstructible> >(8),
39            test_compare<std::equal_to<NotConstructible> >(9),
40            test_allocator<std::pair<const NotConstructible, NotConstructible> >(10)
41           );
42        LIBCPP_ASSERT(c.bucket_count() == 7);
43        assert(c.hash_function() == test_hash<std::hash<NotConstructible> >(8));
44        assert(c.key_eq() == test_compare<std::equal_to<NotConstructible> >(9));
45        assert(c.get_allocator() ==
46               (test_allocator<std::pair<const NotConstructible, NotConstructible> >(10)));
47        assert(c.size() == 0);
48        assert(c.empty());
49        assert(std::distance(c.begin(), c.end()) == 0);
50        assert(c.load_factor() == 0);
51        assert(c.max_load_factor() == 1);
52    }
53#if TEST_STD_VER >= 11
54    {
55        typedef std::unordered_map<NotConstructible, NotConstructible,
56                                   test_hash<std::hash<NotConstructible> >,
57                                   test_compare<std::equal_to<NotConstructible> >,
58                                   min_allocator<std::pair<const NotConstructible,
59                                                                 NotConstructible> >
60                                   > C;
61        C c(7,
62            test_hash<std::hash<NotConstructible> >(8),
63            test_compare<std::equal_to<NotConstructible> >(9),
64            min_allocator<std::pair<const NotConstructible, NotConstructible> >()
65           );
66        LIBCPP_ASSERT(c.bucket_count() == 7);
67        assert(c.hash_function() == test_hash<std::hash<NotConstructible> >(8));
68        assert(c.key_eq() == test_compare<std::equal_to<NotConstructible> >(9));
69        assert(c.get_allocator() ==
70               (min_allocator<std::pair<const NotConstructible, NotConstructible> >()));
71        assert(c.size() == 0);
72        assert(c.empty());
73        assert(std::distance(c.begin(), c.end()) == 0);
74        assert(c.load_factor() == 0);
75        assert(c.max_load_factor() == 1);
76    }
77    {
78        typedef explicit_allocator<std::pair<const NotConstructible, NotConstructible> > A;
79        typedef std::unordered_map<NotConstructible, NotConstructible,
80                                   test_hash<std::hash<NotConstructible> >,
81                                   test_compare<std::equal_to<NotConstructible> >,
82                                   A
83                                   > C;
84        C c(7,
85            test_hash<std::hash<NotConstructible> >(8),
86            test_compare<std::equal_to<NotConstructible> >(9),
87            A{}
88           );
89        LIBCPP_ASSERT(c.bucket_count() == 7);
90        assert(c.hash_function() == test_hash<std::hash<NotConstructible> >(8));
91        assert(c.key_eq() == test_compare<std::equal_to<NotConstructible> >(9));
92        assert(c.get_allocator() == A{});
93        assert(c.size() == 0);
94        assert(c.empty());
95        assert(std::distance(c.begin(), c.end()) == 0);
96        assert(c.load_factor() == 0);
97        assert(c.max_load_factor() == 1);
98    }
99#endif
100}
101