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 // unordered_set(size_type n, const hasher& hf, const key_equal& eql, const allocator_type& a);
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 test_hash<NotConstructible>(8),
37 test_equal_to<NotConstructible>(9),
38 test_allocator<NotConstructible>(10)
39 );
40 LIBCPP_ASSERT(c.bucket_count() == 7);
41 assert(c.hash_function() == test_hash<NotConstructible>(8));
42 assert(c.key_eq() == test_equal_to<NotConstructible>(9));
43 assert(c.get_allocator() == (test_allocator<NotConstructible>(10)));
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 TEST_STD_VER >= 11
51 {
52 typedef std::unordered_set<NotConstructible,
53 test_hash<NotConstructible>,
54 test_equal_to<NotConstructible>,
55 min_allocator<NotConstructible>
56 > C;
57 C c(7,
58 test_hash<NotConstructible>(8),
59 test_equal_to<NotConstructible>(9),
60 min_allocator<NotConstructible>()
61 );
62 LIBCPP_ASSERT(c.bucket_count() == 7);
63 assert(c.hash_function() == test_hash<NotConstructible>(8));
64 assert(c.key_eq() == test_equal_to<NotConstructible>(9));
65 assert(c.get_allocator() == (min_allocator<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 return 0;
75 }
76