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_set>
10
11 // template <class Value, class Hash = hash<Value>, class Pred = equal_to<Value>,
12 // class Alloc = allocator<Value>>
13 // class unordered_set
14
15 // explicit unordered_set(size_type n);
16
17 #include <unordered_set>
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_set<NotConstructible,
31 test_hash<NotConstructible>,
32 test_equal_to<NotConstructible>,
33 test_allocator<NotConstructible>
34 > C;
35 C c(7);
36 LIBCPP_ASSERT(c.bucket_count() == 7);
37 assert(c.hash_function() == test_hash<NotConstructible>());
38 assert(c.key_eq() == test_equal_to<NotConstructible>());
39 assert(c.get_allocator() == (test_allocator<NotConstructible>()));
40 assert(c.size() == 0);
41 assert(c.empty());
42 assert(std::distance(c.begin(), c.end()) == 0);
43 assert(c.load_factor() == 0);
44 assert(c.max_load_factor() == 1);
45 }
46 #if TEST_STD_VER >= 11
47 {
48 typedef std::unordered_set<NotConstructible,
49 test_hash<NotConstructible>,
50 test_equal_to<NotConstructible>,
51 min_allocator<NotConstructible>
52 > C;
53 C c(7);
54 LIBCPP_ASSERT(c.bucket_count() == 7);
55 assert(c.hash_function() == test_hash<NotConstructible>());
56 assert(c.key_eq() == test_equal_to<NotConstructible>());
57 assert(c.get_allocator() == (min_allocator<NotConstructible>()));
58 assert(c.size() == 0);
59 assert(c.empty());
60 assert(std::distance(c.begin(), c.end()) == 0);
61 assert(c.load_factor() == 0);
62 assert(c.max_load_factor() == 1);
63 }
64 #endif
65
66 return 0;
67 }
68