1 // Copyright (C) 2018-2020 Free Software Foundation, Inc.
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
test01()27 test01()
28 {
29 test_type x{1, 2, 3, 4, 3, 2, 1};
30 static_assert(std::is_same_v<decltype(x.remove(0)), test_type::size_type>);
31 test_type::size_type r = x.remove(0);
32 VERIFY( r == 0 );
33 r = x.remove(1);
34 VERIFY( r == 2 );
35 r = x.remove(1);
36 VERIFY( r == 0 );
37 r = x.remove(4);
38 VERIFY( r == 1 );
39 }
40
41 void
test02()42 test02()
43 {
44 int i = 0;
45 auto pred = [&i](int val) { return val == i; };
46 test_type x{1, 2, 3, 4, 3, 2, 1};
47 static_assert(std::is_same_v<decltype(x.remove_if(pred)),
48 test_type::size_type>);
49 test_type::size_type r = x.remove_if(pred);
50 VERIFY( r == 0 );
51 i = 1;
52 r = x.remove_if(pred);
53 VERIFY( r == 2 );
54 r = x.remove_if(pred);
55 VERIFY( r == 0 );
56 i = 4;
57 r = x.remove_if(pred);
58 VERIFY( r == 1 );
59 }
60
61 int
main()62 main()
63 {
64 test01();
65 test02();
66 }
67