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, c++17, c++20 |
10 | |
11 | // <flat_set> |
12 | |
13 | // class flat_multiset |
14 | |
15 | // void clear() noexcept; |
16 | |
17 | #include <cassert> |
18 | #include <deque> |
19 | #include <flat_set> |
20 | #include <functional> |
21 | #include <vector> |
22 | |
23 | #include "MinSequenceContainer.h" |
24 | #include "../helpers.h" |
25 | #include "test_macros.h" |
26 | #include "min_allocator.h" |
27 | |
28 | // test noexcept |
29 | |
30 | template <class T> |
31 | concept NoExceptClear = requires(T t) { |
32 | { t.clear() } noexcept; |
33 | }; |
34 | |
35 | static_assert(NoExceptClear<std::flat_multiset<int>>); |
36 | #ifndef TEST_HAS_NO_EXCEPTIONS |
37 | static_assert(NoExceptClear<std::flat_multiset<int, std::less<int>, ThrowOnMoveContainer<int>>>); |
38 | #endif |
39 | |
40 | template <class KeyContainer> |
41 | void test_one() { |
42 | using Key = typename KeyContainer::value_type; |
43 | using M = std::flat_multiset<Key, std::less<Key>, KeyContainer>; |
44 | { |
45 | M m = {1, 1, 3, 5, 2, 3, 4, 5}; |
46 | assert(m.size() == 8); |
47 | ASSERT_NOEXCEPT(m.clear()); |
48 | ASSERT_SAME_TYPE(decltype(m.clear()), void); |
49 | m.clear(); |
50 | assert(m.size() == 0); |
51 | } |
52 | { |
53 | // was empty |
54 | M m; |
55 | assert(m.size() == 0); |
56 | m.clear(); |
57 | assert(m.size() == 0); |
58 | } |
59 | } |
60 | |
61 | void test() { |
62 | test_one<std::vector<int>>(); |
63 | test_one<std::vector<int>>(); |
64 | test_one<std::deque<int>>(); |
65 | test_one<MinSequenceContainer<int>>(); |
66 | test_one<std::vector<int, min_allocator<int>>>(); |
67 | test_one<std::vector<int, min_allocator<int>>>(); |
68 | } |
69 | |
70 | int main(int, char**) { |
71 | test(); |
72 | |
73 | return 0; |
74 | } |
75 | |