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b9a2dce8 | 1 | // { dg-do run { target c++20 } } |
188588e4 | 2 | |
83ffe9cd | 3 | // Copyright (C) 2018-2023 Free Software Foundation, Inc. |
188588e4 ESR |
4 | // |
5 | // This file is part of the GNU ISO C++ Library. This library is free | |
6 | // software; you can redistribute it and/or modify it under the | |
7 | // terms of the GNU General Public License as published by the | |
8 | // Free Software Foundation; either version 3, or (at your option) | |
9 | // any later version. | |
10 | ||
11 | // This library is distributed in the hope that it will be useful, | |
12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | // GNU General Public License for more details. | |
15 | ||
16 | // You should have received a copy of the GNU General Public License along | |
17 | // with this library; see the file COPYING3. If not see | |
18 | // <http://www.gnu.org/licenses/>. | |
19 | ||
20 | #include <deque> | |
21 | #include <testsuite_hooks.h> | |
22 | ||
45a8d80f | 23 | #ifndef __cpp_lib_erase_if |
0fe9eaaa | 24 | # error "Feature-test macro for erase_if missing in <deque>" |
55b00d14 | 25 | #elif __cpp_lib_erase_if < 202002 |
0fe9eaaa | 26 | # error "Feature-test macro for erase_if has wrong value in <deque>" |
45a8d80f JW |
27 | #endif |
28 | ||
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29 | void |
30 | test01() | |
31 | { | |
32 | auto is_odd = [](const int i) { return i % 2 != 0; }; | |
33 | ||
34 | std::deque<int> d{ 10, 11, 12, 14, 15, 17, 18, 19 }; | |
0b44b4b8 | 35 | auto num = std::erase_if(d, is_odd); |
188588e4 ESR |
36 | std::deque<int> t{ 10, 12, 14, 18 }; |
37 | VERIFY( d == t ); | |
0b44b4b8 | 38 | VERIFY( num == 4 ); |
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39 | } |
40 | ||
41 | void | |
42 | test02() | |
43 | { | |
44 | std::deque<int> d{ 10, 11, 12, 14, 15, 17, 18, 19 }; | |
0b44b4b8 | 45 | auto num = std::erase(d, 14); |
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46 | std::deque<int> t{ 10, 11, 12, 15, 17, 18, 19 }; |
47 | VERIFY( d == t ); | |
0b44b4b8 ESR |
48 | VERIFY( num == 1 ); |
49 | num = std::erase(d, 20); | |
188588e4 | 50 | VERIFY( d == t ); |
0b44b4b8 | 51 | VERIFY( num == 0 ); |
188588e4 ESR |
52 | } |
53 | ||
54 | int | |
55 | main() | |
56 | { | |
57 | test01(); | |
58 | test02(); | |
59 | ||
60 | return 0; | |
61 | } |