| // { dg-options "-std=gnu++2a" } |
| // { dg-do run { target c++2a } } |
| |
| // Copyright (C) 2020-2023 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 3, or (at your option) |
| // any later version. |
| // |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| // |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING3. If not see |
| // <http://www.gnu.org/licenses/>. |
| |
| #include <forward_list> |
| #include <testsuite_hooks.h> |
| |
| struct aggressive_aggregate |
| { |
| int a; |
| int b; |
| }; |
| |
| void test_emplace_front() |
| { |
| std::forward_list<aggressive_aggregate> x; |
| x.emplace_front(1, 2); |
| VERIFY(x.front().a == 1); |
| VERIFY(x.front().b == 2); |
| x.emplace_front(1); |
| VERIFY(x.front().a == 1); |
| VERIFY(x.front().b == 0); |
| x.emplace_front(); |
| VERIFY(x.front().a == 0); |
| VERIFY(x.front().b == 0); |
| } |
| |
| void test_emplace_after() |
| { |
| std::forward_list<aggressive_aggregate> x{{42, 666}}; |
| auto y = x.emplace_after(x.begin(), 1, 2); |
| VERIFY(y->a == 1); |
| VERIFY(y->b == 2); |
| y = x.emplace_after(x.begin(), 1); |
| VERIFY(y->a == 1); |
| VERIFY(y->b == 0); |
| y = x.emplace_after(x.begin()); |
| VERIFY(y->a == 0); |
| VERIFY(y->b == 0); |
| } |
| |
| int main() |
| { |
| test_emplace_front(); |
| test_emplace_after(); |
| } |