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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/23_containers/list/modifiers/emplace/92878_92947.cc
1 // { dg-do run { target c++20 } }
3 // Copyright (C) 2020-2023 Free Software Foundation, Inc.
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)
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.
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/>.
21 #include <testsuite_hooks.h>
23 struct aggressive_aggregate
29 void test_emplace_front()
31 std::list
<aggressive_aggregate
> x
;
32 x
.emplace_front(1, 2);
33 VERIFY(x
.front().a
== 1);
34 VERIFY(x
.front().b
== 2);
36 VERIFY(x
.front().a
== 1);
37 VERIFY(x
.front().b
== 0);
39 VERIFY(x
.front().a
== 0);
40 VERIFY(x
.front().b
== 0);
43 void test_emplace_back()
45 std::list
<aggressive_aggregate
> x
;
47 VERIFY(x
.back().a
== 1);
48 VERIFY(x
.back().b
== 2);
50 VERIFY(x
.back().a
== 1);
51 VERIFY(x
.back().b
== 0);
53 VERIFY(x
.back().a
== 0);
54 VERIFY(x
.back().b
== 0);
59 std::list
<aggressive_aggregate
> x
{{42, 666}};
60 auto y
= x
.emplace(x
.begin(), 1, 2);
63 y
= x
.emplace(x
.begin(), 1);
66 y
= x
.emplace(x
.begin());