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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/23_containers/list/operations/remove_cxx20_return.cc
1 // Copyright (C) 2018-2019 Free Software Foundation, Inc.
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)
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.
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/>.
18 // { dg-options "-std=gnu++2a" }
19 // { dg-do run { target c++2a } }
22 #include <testsuite_hooks.h>
24 using test_type
= std::list
<int>;
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);
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
);
52 r
= x
.remove_if(pred
);
54 r
= x
.remove_if(pred
);
57 r
= x
.remove_if(pred
);