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a945c346 | 1 | // Copyright (C) 2016-2024 Free Software Foundation, Inc. |
2dbe56bd JW |
2 | // |
3 | // This file is part of the GNU ISO C++ Library. This library is free | |
4 | // software; you can redistribute it and/or modify it under the | |
5 | // terms of the GNU General Public License as published by the | |
6 | // Free Software Foundation; either version 3, or (at your option) | |
7 | // any later version. | |
8 | ||
9 | // This library is distributed in the hope that it will be useful, | |
10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | // GNU General Public License for more details. | |
13 | ||
14 | // You should have received a copy of the GNU General Public License along | |
15 | // with this library; see the file COPYING3. If not see | |
16 | // <http://www.gnu.org/licenses/>. | |
17 | ||
6458742a | 18 | // { dg-do run { target c++17 } } |
2dbe56bd JW |
19 | |
20 | #include <set> | |
21 | #include <algorithm> | |
22 | #include <testsuite_hooks.h> | |
23 | ||
24 | using test_type = std::set<int>; | |
25 | ||
26 | void | |
27 | test01() | |
28 | { | |
2dbe56bd JW |
29 | const test_type c0{ 1, 2, 3 }; |
30 | test_type c1 = c0, c2 = c0; | |
31 | c1.merge(c2); | |
32 | VERIFY( c1 == c0 ); | |
33 | VERIFY( c2 == c0 ); | |
34 | ||
35 | c1.clear(); | |
36 | c1.merge(c2); | |
37 | VERIFY( c1 == c0 ); | |
38 | VERIFY( c2.empty() ); | |
39 | ||
40 | c2.merge(std::move(c1)); | |
41 | VERIFY( c1.empty() ); | |
42 | VERIFY( c2 == c0 ); | |
43 | } | |
44 | ||
45 | void | |
46 | test02() | |
47 | { | |
2dbe56bd JW |
48 | const test_type c0{ 1, 2, 3 }; |
49 | test_type c1 = c0; | |
50 | std::set<int, std::less<>> c2( c0.begin(), c0.end() ); | |
51 | c1.merge(c2); | |
52 | VERIFY( c1 == c0 ); | |
53 | VERIFY( std::equal(c2.begin(), c2.end(), c0.begin(), c0.end()) ); | |
54 | ||
55 | c1.clear(); | |
56 | c1.merge(c2); | |
57 | VERIFY( c1 == c0 ); | |
58 | VERIFY( c2.empty() ); | |
59 | ||
60 | c2.merge(std::move(c1)); | |
61 | VERIFY( c1.empty() ); | |
62 | VERIFY( std::equal(c2.begin(), c2.end(), c0.begin(), c0.end()) ); | |
63 | } | |
64 | ||
65 | void | |
66 | test03() | |
67 | { | |
2dbe56bd JW |
68 | const test_type c0{ 1, 2, 3 }; |
69 | test_type c1 = c0; | |
70 | std::set<int, std::greater<>> c2( c0.begin(), c0.end() ); | |
71 | c1.merge(c2); | |
72 | VERIFY( c1 == c0 ); | |
73 | VERIFY( std::equal(c2.rbegin(), c2.rend(), c0.begin(), c0.end()) ); | |
74 | ||
75 | c1.clear(); | |
76 | c1.merge(c2); | |
77 | VERIFY( c1 == c0 ); | |
78 | VERIFY( c2.empty() ); | |
79 | ||
80 | c2.merge(c1); | |
81 | VERIFY( c1.empty() ); | |
82 | VERIFY( std::equal(c2.rbegin(), c2.rend(), c0.begin(), c0.end()) ); | |
83 | ||
84 | c1.merge(std::move(c2)); | |
85 | VERIFY( c1 == c0 ); | |
86 | VERIFY( c2.empty() ); | |
87 | } | |
88 | ||
89 | void | |
90 | test04() | |
91 | { | |
2dbe56bd JW |
92 | const test_type c0{ 1, 2, 3 }; |
93 | test_type c1 = c0; | |
94 | std::multiset<int, std::greater<>> c2( c0.begin(), c0.end() ); | |
95 | c1.merge(c2); | |
96 | VERIFY( c1 == c0 ); | |
97 | VERIFY( std::equal(c2.rbegin(), c2.rend(), c0.begin(), c0.end()) ); | |
98 | ||
99 | c1.clear(); | |
100 | c1.merge(c2); | |
101 | VERIFY( c1 == c0 ); | |
102 | VERIFY( c2.empty() ); | |
103 | ||
104 | c2.merge(c1); | |
105 | VERIFY( c1.empty() ); | |
106 | VERIFY( std::equal(c2.rbegin(), c2.rend(), c0.begin(), c0.end()) ); | |
107 | ||
108 | c1 = c0; | |
109 | c2.merge(c1); | |
110 | VERIFY( c1.empty() ); | |
111 | VERIFY( c2.size() == (2 * c0.size()) ); | |
112 | VERIFY( std::is_sorted(c2.begin(), c2.end(), c2.value_comp()) ); | |
113 | ||
114 | c1.merge(c2); | |
115 | VERIFY( c1 == c0 ); | |
116 | VERIFY( std::equal(c2.rbegin(), c2.rend(), c0.begin(), c0.end()) ); | |
117 | ||
118 | c1.merge(std::move(c2)); | |
119 | VERIFY( c1 == c0 ); | |
120 | VERIFY( std::equal(c2.rbegin(), c2.rend(), c0.begin(), c0.end()) ); | |
121 | ||
122 | c1.clear(); | |
123 | c1.merge(std::move(c2)); | |
124 | VERIFY( c1 == c0 ); | |
125 | VERIFY( c2.empty() ); | |
126 | } | |
127 | ||
128 | int | |
129 | main() | |
130 | { | |
131 | test01(); | |
132 | test02(); | |
133 | test03(); | |
134 | test04(); | |
135 | } |