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 |
10 | |
11 | // <set> |
12 | |
13 | // class set |
14 | |
15 | // template <class... Args> |
16 | // pair<iterator, bool> emplace(Args&&... args); |
17 | |
18 | #include <set> |
19 | #include <cassert> |
20 | |
21 | #include "test_macros.h" |
22 | #include "../../Emplaceable.h" |
23 | #include "DefaultOnly.h" |
24 | #include "min_allocator.h" |
25 | |
26 | int main(int, char**) { |
27 | { |
28 | typedef std::set<DefaultOnly> M; |
29 | typedef std::pair<M::iterator, bool> R; |
30 | M m; |
31 | assert(DefaultOnly::count == 0); |
32 | R r = m.emplace(); |
33 | assert(r.second); |
34 | assert(r.first == m.begin()); |
35 | assert(m.size() == 1); |
36 | assert(*m.begin() == DefaultOnly()); |
37 | assert(DefaultOnly::count == 1); |
38 | |
39 | r = m.emplace(); |
40 | assert(!r.second); |
41 | assert(r.first == m.begin()); |
42 | assert(m.size() == 1); |
43 | assert(*m.begin() == DefaultOnly()); |
44 | assert(DefaultOnly::count == 1); |
45 | } |
46 | assert(DefaultOnly::count == 0); |
47 | { |
48 | typedef std::set<Emplaceable> M; |
49 | typedef std::pair<M::iterator, bool> R; |
50 | M m; |
51 | R r = m.emplace(); |
52 | assert(r.second); |
53 | assert(r.first == m.begin()); |
54 | assert(m.size() == 1); |
55 | assert(*m.begin() == Emplaceable()); |
56 | r = m.emplace(2, 3.5); |
57 | assert(r.second); |
58 | assert(r.first == std::next(m.begin())); |
59 | assert(m.size() == 2); |
60 | assert(*r.first == Emplaceable(2, 3.5)); |
61 | r = m.emplace(2, 3.5); |
62 | assert(!r.second); |
63 | assert(r.first == std::next(m.begin())); |
64 | assert(m.size() == 2); |
65 | assert(*r.first == Emplaceable(2, 3.5)); |
66 | } |
67 | { |
68 | typedef std::set<int> M; |
69 | typedef std::pair<M::iterator, bool> R; |
70 | M m; |
71 | R r = m.emplace(args: M::value_type(2)); |
72 | assert(r.second); |
73 | assert(r.first == m.begin()); |
74 | assert(m.size() == 1); |
75 | assert(*r.first == 2); |
76 | } |
77 | { |
78 | typedef std::set<int, std::less<int>, min_allocator<int>> M; |
79 | typedef std::pair<M::iterator, bool> R; |
80 | M m; |
81 | R r = m.emplace(M::value_type(2)); |
82 | assert(r.second); |
83 | assert(r.first == m.begin()); |
84 | assert(m.size() == 1); |
85 | assert(*r.first == 2); |
86 | } |
87 | |
88 | return 0; |
89 | } |
90 | |