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// UNSUPPORTED: c++03, c++11, c++14
10// TODO: Change to XFAIL once https://github.com/llvm/llvm-project/issues/40340 is fixed
11// UNSUPPORTED: availability-pmr-missing
12
13// <unordered_set>
14
15// namespace std::pmr {
16// template <class V, class H = hash<V>, class P = equal_to<V> >
17// using unordered_set =
18// ::std::unordered_set<V, H, P, polymorphic_allocator<V>>
19//
20// template <class V, class H = hash<V>, class P = equal_to<V> >
21// using unordered_multiset =
22// ::std::unordered_multiset<V, H, P, polymorphic_allocator<V>>
23//
24// } // namespace std::pmr
25
26#include <unordered_set>
27#include <memory_resource>
28#include <type_traits>
29#include <cassert>
30
31template <class T>
32struct MyHash : std::hash<T> {};
33
34template <class T>
35struct MyPred : std::equal_to<T> {};
36
37int main(int, char**) {
38 using V = char;
39 using DH = std::hash<V>;
40 using MH = MyHash<V>;
41 using DP = std::equal_to<V>;
42 using MP = MyPred<V>;
43 {
44 using StdSet = std::unordered_set<V, DH, DP, std::pmr::polymorphic_allocator<V>>;
45 using PmrSet = std::pmr::unordered_set<V>;
46 static_assert(std::is_same<StdSet, PmrSet>::value, "");
47 }
48 {
49 using StdSet = std::unordered_set<V, MH, DP, std::pmr::polymorphic_allocator<V>>;
50 using PmrSet = std::pmr::unordered_set<V, MH>;
51 static_assert(std::is_same<StdSet, PmrSet>::value, "");
52 }
53 {
54 using StdSet = std::unordered_set<V, MH, MP, std::pmr::polymorphic_allocator<V>>;
55 using PmrSet = std::pmr::unordered_set<V, MH, MP>;
56 static_assert(std::is_same<StdSet, PmrSet>::value, "");
57 }
58 {
59 std::pmr::unordered_set<int> m;
60 assert(m.get_allocator().resource() == std::pmr::get_default_resource());
61 }
62 {
63 using StdSet = std::unordered_multiset<V, DH, DP, std::pmr::polymorphic_allocator<V>>;
64 using PmrSet = std::pmr::unordered_multiset<V>;
65 static_assert(std::is_same<StdSet, PmrSet>::value, "");
66 }
67 {
68 using StdSet = std::unordered_multiset<V, MH, DP, std::pmr::polymorphic_allocator<V>>;
69 using PmrSet = std::pmr::unordered_multiset<V, MH>;
70 static_assert(std::is_same<StdSet, PmrSet>::value, "");
71 }
72 {
73 using StdSet = std::unordered_multiset<V, MH, MP, std::pmr::polymorphic_allocator<V>>;
74 using PmrSet = std::pmr::unordered_multiset<V, MH, MP>;
75 static_assert(std::is_same<StdSet, PmrSet>::value, "");
76 }
77 {
78 std::pmr::unordered_multiset<int> m;
79 assert(m.get_allocator().resource() == std::pmr::get_default_resource());
80 }
81
82 return 0;
83}
84

source code of libcxx/test/std/utilities/utility/mem.res/mem.res.aliases/header_unordered_set_synop.pass.cpp