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1 | // { dg-options "-std=gnu++2a" } |
2 | // { dg-do run { target c++2a } } | |
3 | ||
83ffe9cd | 4 | // Copyright (C) 2020-2023 Free Software Foundation, Inc. |
e06cde87 VV |
5 | // |
6 | // This file is part of the GNU ISO C++ Library. This library is free | |
7 | // software; you can redistribute it and/or modify it under the | |
8 | // terms of the GNU General Public License as published by the | |
9 | // Free Software Foundation; either version 3, or (at your option) | |
10 | // any later version. | |
11 | // | |
12 | // This library is distributed in the hope that it will be useful, | |
13 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | // GNU General Public License for more details. | |
16 | // | |
17 | // You should have received a copy of the GNU General Public License along | |
18 | // with this library; see the file COPYING3. If not see | |
19 | // <http://www.gnu.org/licenses/>. | |
20 | ||
21 | #include <unordered_map> | |
22 | #include <testsuite_hooks.h> | |
23 | ||
24 | struct aggressive_aggregate | |
25 | { | |
26 | int a; | |
27 | int b; | |
28 | }; | |
29 | ||
30 | void test_emplace() | |
31 | { | |
32 | std::unordered_multimap<int, aggressive_aggregate> x; | |
33 | auto it = x.emplace(std::piecewise_construct, | |
34 | std::tuple(0), std::tuple(1, 2)); | |
35 | VERIFY(it->second.a == 1); | |
36 | VERIFY(it->second.b == 2); | |
37 | it = x.emplace(std::piecewise_construct, | |
38 | std::tuple(1), std::tuple(1)); | |
39 | VERIFY(it->second.a == 1); | |
40 | VERIFY(it->second.b == 0); | |
41 | it = x.emplace(std::piecewise_construct, | |
42 | std::tuple(2), std::tuple()); | |
43 | VERIFY(it->second.a == 0); | |
44 | VERIFY(it->second.b == 0); | |
45 | } | |
46 | ||
47 | void test_emplace_hint() | |
48 | { | |
49 | std::unordered_multimap<int, aggressive_aggregate> x; | |
50 | auto it = x.emplace_hint(x.begin(), | |
51 | std::piecewise_construct, | |
52 | std::tuple(3), std::tuple(1, 2)); | |
53 | VERIFY(it->second.a == 1); | |
54 | VERIFY(it->second.b == 2); | |
55 | it = x.emplace_hint(x.begin(), | |
56 | std::piecewise_construct, | |
57 | std::tuple(4), std::tuple(1)); | |
58 | VERIFY(it->second.a == 1); | |
59 | VERIFY(it->second.b == 0); | |
60 | it = x.emplace_hint(x.begin(), | |
61 | std::piecewise_construct, | |
62 | std::tuple(5), std::tuple()); | |
63 | VERIFY(it->second.a == 0); | |
64 | VERIFY(it->second.b == 0); | |
65 | } | |
66 | ||
67 | int main() | |
68 | { | |
69 | test_emplace(); | |
70 | test_emplace_hint(); | |
71 | } |