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a5544970 | 1 | // Copyright (C) 2018-2019 Free Software Foundation, Inc. |
ef45724a 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 <list> | |
22 | #include <testsuite_hooks.h> | |
23 | ||
24 | using test_type = std::list<int>; | |
25 | ||
26 | void | |
27 | test01() | |
28 | { | |
29 | test_type x{1, 2, 2, 4, 4, 2, 1}; | |
30 | static_assert(std::is_same_v<decltype(x.unique()), test_type::size_type>); | |
31 | test_type::size_type r = x.unique(); | |
32 | VERIFY( r == 2 ); | |
33 | r = x.unique(); | |
34 | VERIFY( r == 0 ); | |
35 | } | |
36 | ||
37 | void | |
38 | test02() | |
39 | { | |
40 | auto pred = [](int val, int prev) { return val == prev; }; | |
41 | test_type x{1, 2, 2, 4, 4, 2, 1}; | |
42 | static_assert(std::is_same_v<decltype(x.unique(pred)), | |
43 | test_type::size_type>); | |
44 | test_type::size_type r = x.unique(pred); | |
45 | VERIFY( r == 2 ); | |
46 | r = x.unique(pred); | |
47 | VERIFY( r == 0 ); | |
48 | } | |
49 | ||
50 | int | |
51 | main() | |
52 | { | |
53 | test01(); | |
54 | test02(); | |
55 | } |