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
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
//===----------------------------------------------------------------------===//
//
// 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>
// const_reference at(size_type n) const; // constexpr since C++20
#include <cassert>
#include <memory>
#include <vector>
#include "min_allocator.h"
#include "test_allocator.h"
#include "test_macros.h"
#ifndef TEST_HAS_NO_EXCEPTIONS
# include <stdexcept>
#endif
template <typename Allocator>
TEST_CONSTEXPR_CXX20 void test() {
using C = const std::vector<bool, Allocator>;
using const_reference = typename C::const_reference;
bool a[] = {1, 0, 1, 0, 1};
C v(a, a + sizeof(a) / sizeof(a[0]));
ASSERT_SAME_TYPE(const_reference, decltype(v.at(0)));
assert(v.at(0) == true);
assert(v.at(1) == false);
assert(v.at(2) == true);
assert(v.at(3) == false);
assert(v.at(4) == true);
}
template <typename Allocator>
void test_exception() {
#ifndef TEST_HAS_NO_EXCEPTIONS
{
bool a[] = {1, 0, 1, 1};
using C = const std::vector<bool, Allocator>;
C v(a, a + sizeof(a) / sizeof(a[0]));
try {
TEST_IGNORE_NODISCARD v.at(4);
assert(false);
} catch (std::out_of_range const&) {
// pass
} catch (...) {
assert(false);
}
try {
TEST_IGNORE_NODISCARD v.at(5);
assert(false);
} catch (std::out_of_range const&) {
// pass
} catch (...) {
assert(false);
}
try {
TEST_IGNORE_NODISCARD v.at(6);
assert(false);
} catch (std::out_of_range const&) {
// pass
} catch (...) {
assert(false);
}
try {
using size_type = typename C::size_type;
TEST_IGNORE_NODISCARD v.at(static_cast<size_type>(-1));
assert(false);
} catch (std::out_of_range const&) {
// pass
} catch (...) {
assert(false);
}
}
{
std::vector<bool, Allocator> v;
try {
TEST_IGNORE_NODISCARD v.at(0);
assert(false);
} catch (std::out_of_range const&) {
// pass
} catch (...) {
assert(false);
}
}
#endif
}
TEST_CONSTEXPR_CXX20 bool tests() {
test<std::allocator<bool> >();
test<min_allocator<bool> >();
test<test_allocator<bool> >();
return true;
}
void test_exceptions() {
test_exception<std::allocator<bool> >();
test_exception<min_allocator<bool> >();
test_exception<test_allocator<bool> >();
}
int main(int, char**) {
tests();
test_exceptions();
#if TEST_STD_VER >= 20
static_assert(tests());
#endif
return 0;
}
|
