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);
17 
18 #include <unordered_map>
19 #include <cassert>
20 
21 #include "../../../NotConstructible.h"
22 #include "../../../test_compare.h"
23 #include "../../../test_hash.h"
24 #include "../../../test_allocator.h"
25 #include "../../../min_allocator.h"
26 
27 int main()
28 {
29     {
30         typedef std::unordered_map<NotConstructible, NotConstructible,
31                                    test_hash<std::hash<NotConstructible> >,
32                                    test_compare<std::equal_to<NotConstructible> >,
33                                    test_allocator<std::pair<const NotConstructible,
34                                                                   NotConstructible> >
35                                    > C;
36         C c(7,
37             test_hash<std::hash<NotConstructible> >(8)
38            );
39         assert(c.bucket_count() == 7);
40         assert(c.hash_function() == test_hash<std::hash<NotConstructible> >(8));
41         assert(c.key_eq() == test_compare<std::equal_to<NotConstructible> >());
42         assert(c.get_allocator() ==
43                (test_allocator<std::pair<const NotConstructible, NotConstructible> >()));
44         assert(c.size() == 0);
45         assert(c.empty());
46         assert(std::distance(c.begin(), c.end()) == 0);
47         assert(c.load_factor() == 0);
48         assert(c.max_load_factor() == 1);
49     }
50 #if __cplusplus >= 201103L
51     {
52         typedef std::unordered_map<NotConstructible, NotConstructible,
53                                    test_hash<std::hash<NotConstructible> >,
54                                    test_compare<std::equal_to<NotConstructible> >,
55                                    min_allocator<std::pair<const NotConstructible,
56                                                                  NotConstructible> >
57                                    > C;
58         C c(7,
59             test_hash<std::hash<NotConstructible> >(8)
60            );
61         assert(c.bucket_count() == 7);
62         assert(c.hash_function() == test_hash<std::hash<NotConstructible> >(8));
63         assert(c.key_eq() == test_compare<std::equal_to<NotConstructible> >());
64         assert(c.get_allocator() ==
65                (min_allocator<std::pair<const NotConstructible, NotConstructible> >()));
66         assert(c.size() == 0);
67         assert(c.empty());
68         assert(std::distance(c.begin(), c.end()) == 0);
69         assert(c.load_factor() == 0);
70         assert(c.max_load_factor() == 1);
71     }
72 #endif
73 }
74