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a5544970 | 1 | // Copyright (C) 2018-2019 Free Software Foundation, Inc. |
3adea09e 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 | ||
18 | // { dg-options "-std=gnu++2a" } | |
19 | // { dg-do run { target c++2a } } | |
20 | ||
21 | #include <set> | |
22 | #include <testsuite_hooks.h> | |
23 | ||
24 | void | |
25 | test01() | |
26 | { | |
27 | std::set<int> m; | |
28 | VERIFY( ! m.contains( 0 ) ); | |
29 | VERIFY( ! m.contains( 1 ) ); | |
30 | m.insert(0); | |
31 | VERIFY( m.contains( 0 ) ); | |
32 | VERIFY( ! m.contains( 1 ) ); | |
33 | m.insert(1); | |
34 | VERIFY( m.contains( 0 ) ); | |
35 | VERIFY( m.contains( 1 ) ); | |
36 | } | |
37 | ||
38 | struct Zero { }; | |
39 | bool operator<(Zero, int i) { return 0 < i; } | |
40 | bool operator<(int i, Zero) { return i < 0; } | |
41 | ||
42 | struct One { }; | |
43 | bool operator<(One, int i) { return 1 < i; } | |
44 | bool operator<(int i, One) { return i < 1; } | |
45 | ||
46 | void | |
47 | test02() | |
48 | { | |
49 | std::set<int, std::less<>> m; | |
50 | VERIFY( ! m.contains( Zero{} ) ); | |
51 | VERIFY( ! m.contains( One{} ) ); | |
52 | m.insert(0); | |
53 | VERIFY( m.contains( Zero{} ) ); | |
54 | VERIFY( ! m.contains( One{} ) ); | |
55 | m.insert(1); | |
56 | VERIFY( m.contains( Zero{} ) ); | |
57 | VERIFY( m.contains( One{} ) ); | |
58 | } | |
59 | ||
60 | int | |
61 | main() | |
62 | { | |
63 | test01(); | |
64 | test02(); | |
65 | } |