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a62b871d | 1 | // { dg-options "-std=gnu++2a" } |
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2 | // { dg-do run { target c++2a } } |
3 | ||
8d9254fc | 4 | // Copyright (C) 2018-2020 Free Software Foundation, Inc. |
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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 <set> | |
22 | #include <testsuite_hooks.h> | |
23 | ||
45a8d80f JW |
24 | #ifndef __cpp_lib_erase_if |
25 | # error "Feature-test macro for erase_if missing" | |
26 | #elif __cpp_lib_erase_if < 201811 | |
27 | # error "Feature-test macro for erase_if has wrong value" | |
28 | #endif | |
29 | ||
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30 | auto is_odd = [](const int i) { return i % 2 != 0; }; |
31 | ||
32 | void | |
33 | test01() | |
34 | { | |
35 | std::set<int> s{ 10, 11, 12, 14, 15, 17, 18, 19 }; | |
0b44b4b8 | 36 | auto num = std::erase_if(s, is_odd); |
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37 | std::set<int> t{ 10, 12, 14, 18 }; |
38 | VERIFY( s == t ); | |
0b44b4b8 | 39 | VERIFY( num == 4 ); |
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40 | } |
41 | ||
42 | void | |
43 | test02() | |
44 | { | |
45 | std::multiset<int> ms{ 20, 21, 22, 22, 23, 23, 24, 25 }; | |
0b44b4b8 | 46 | auto num = std::erase_if(ms, is_odd); |
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47 | std::multiset<int> t{ 20, 22, 22, 24 }; |
48 | VERIFY( ms == t ); | |
0b44b4b8 | 49 | VERIFY( num == 4 ); |
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50 | } |
51 | ||
52 | int | |
53 | main() | |
54 | { | |
55 | test01(); | |
56 | test02(); | |
57 | ||
58 | return 0; | |
59 | } |