blob: 7568eb2f3cc3e96cec2dbc6910483815afd7dd48 (
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
79
80
81
82
|
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <vector>
// reference& operator=(const reference&)
#include <cassert>
#include <vector>
#include <utility>
#include "test_macros.h"
TEST_CONSTEXPR_CXX20 bool test() {
std::vector<bool> vec;
typedef std::vector<bool>::reference Ref;
vec.push_back(true);
vec.push_back(false);
Ref ref1 = vec[0];
Ref ref2 = vec[1];
ref2 = ref1;
// Ref&
{
vec[0] = false;
vec[1] = true;
ref1 = ref2;
assert(vec[0]);
assert(vec[1]);
}
{
vec[0] = true;
vec[1] = false;
ref1 = ref2;
assert(!vec[0]);
assert(!vec[1]);
}
// Ref&&
{
vec[0] = false;
vec[1] = true;
ref1 = std::move(ref2);
assert(vec[0]);
assert(vec[1]);
}
{
vec[0] = true;
vec[1] = false;
ref1 = std::move(ref2);
assert(!vec[0]);
assert(!vec[1]);
}
// const Ref&
{
vec[0] = false;
vec[1] = true;
ref1 = static_cast<const Ref&>(ref2);
assert(vec[0]);
assert(vec[1]);
}
{
vec[0] = true;
vec[1] = false;
ref1 = static_cast<const Ref&>(ref2);
assert(!vec[0]);
assert(!vec[1]);
}
return true;
}
int main(int, char**) {
test();
#if TEST_STD_VER > 17
static_assert(test());
#endif
return 0;
}
|
