1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // <unordered_map>
10
11 // template <class Key, class T, class Hash = hash<Key>, class Pred = equal_to<Key>,
12 // class Alloc = allocator<pair<const Key, T>>>
13 // class unordered_map
14
15 // unordered_map(size_type n);
16
17 #include <unordered_map>
18 #include <cassert>
19
20 #include "test_macros.h"
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
main(int,char **)27 int main(int, char**)
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 LIBCPP_ASSERT(c.bucket_count() == 7);
38 assert(c.hash_function() == test_hash<std::hash<NotConstructible> >());
39 assert(c.key_eq() == test_compare<std::equal_to<NotConstructible> >());
40 assert(c.get_allocator() ==
41 (test_allocator<std::pair<const NotConstructible, NotConstructible> >()));
42 assert(c.size() == 0);
43 assert(c.empty());
44 assert(std::distance(c.begin(), c.end()) == 0);
45 assert(c.load_factor() == 0);
46 assert(c.max_load_factor() == 1);
47 }
48 #if TEST_STD_VER >= 11
49 {
50 typedef std::unordered_map<NotConstructible, NotConstructible,
51 test_hash<std::hash<NotConstructible> >,
52 test_compare<std::equal_to<NotConstructible> >,
53 min_allocator<std::pair<const NotConstructible,
54 NotConstructible> >
55 > C;
56 C c(7);
57 LIBCPP_ASSERT(c.bucket_count() == 7);
58 assert(c.hash_function() == test_hash<std::hash<NotConstructible> >());
59 assert(c.key_eq() == test_compare<std::equal_to<NotConstructible> >());
60 assert(c.get_allocator() ==
61 (min_allocator<std::pair<const NotConstructible, NotConstructible> >()));
62 assert(c.size() == 0);
63 assert(c.empty());
64 assert(std::distance(c.begin(), c.end()) == 0);
65 assert(c.load_factor() == 0);
66 assert(c.max_load_factor() == 1);
67 }
68 #endif
69
70 return 0;
71 }
72