blob: 617a4a61096752209d571a53d2761688b827f97d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
// { dg-options "-std=gnu++2a" }
// { dg-do run { target c++2a } }
// Copyright (C) 2020-2021 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 <list>
#include <testsuite_hooks.h>
struct aggressive_aggregate
{
int a;
int b;
};
void test_emplace_front()
{
std::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_back()
{
std::list<aggressive_aggregate> x;
x.emplace_back(1, 2);
VERIFY(x.back().a == 1);
VERIFY(x.back().b == 2);
x.emplace_back(1);
VERIFY(x.back().a == 1);
VERIFY(x.back().b == 0);
x.emplace_back();
VERIFY(x.back().a == 0);
VERIFY(x.back().b == 0);
}
void test_emplace()
{
std::list<aggressive_aggregate> x{{42, 666}};
auto y = x.emplace(x.begin(), 1, 2);
VERIFY(y->a == 1);
VERIFY(y->b == 2);
y = x.emplace(x.begin(), 1);
VERIFY(y->a == 1);
VERIFY(y->b == 0);
y = x.emplace(x.begin());
VERIFY(y->a == 0);
VERIFY(y->b == 0);
}
int main()
{
test_emplace_front();
test_emplace_back();
test_emplace();
}
|
