1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9// <deque>
10
11// reference operator[](size_type __i);
12// const_reference operator[](size_type __i) const;
13//
14// reference at(size_type __i);
15// const_reference at(size_type __i) const;
16//
17// reference front();
18// const_reference front() const;
19//
20// reference back();
21// const_reference back() const;
22// libc++ marks these as 'noexcept'
23
24#include "asan_testing.h"
25#include <deque>
26#include <cassert>
27
28#include "min_allocator.h"
29#include "test_macros.h"
30
31template <class C>
32C make(int size, int start = 0) {
33 const int b = 4096 / sizeof(int);
34 int init = 0;
35 if (start > 0) {
36 init = (start + 1) / b + ((start + 1) % b != 0);
37 init *= b;
38 --init;
39 }
40 C c(init, 0);
41 for (int i = 0; i < init - start; ++i)
42 c.pop_back();
43 for (int i = 0; i < size; ++i)
44 c.push_back(i);
45 for (int i = 0; i < start; ++i)
46 c.pop_front();
47 return c;
48}
49
50int main(int, char**) {
51 {
52 typedef std::deque<int> C;
53 C c = make<std::deque<int> >(size: 10);
54 ASSERT_SAME_TYPE(decltype(c[0]), C::reference);
55 LIBCPP_ASSERT_NOEXCEPT(c[0]);
56 LIBCPP_ASSERT_NOEXCEPT(c.front());
57 ASSERT_SAME_TYPE(decltype(c.front()), C::reference);
58 LIBCPP_ASSERT_NOEXCEPT(c.back());
59 ASSERT_SAME_TYPE(decltype(c.back()), C::reference);
60 for (int i = 0; i < 10; ++i)
61 assert(c[i] == i);
62 for (int i = 0; i < 10; ++i)
63 assert(c.at(i) == i);
64 assert(c.front() == 0);
65 assert(c.back() == 9);
66 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
67 }
68 {
69 typedef std::deque<int> C;
70 const C c = make<std::deque<int> >(size: 10);
71 ASSERT_SAME_TYPE(decltype(c[0]), C::const_reference);
72 LIBCPP_ASSERT_NOEXCEPT(c[0]);
73 LIBCPP_ASSERT_NOEXCEPT(c.front());
74 ASSERT_SAME_TYPE(decltype(c.front()), C::const_reference);
75 LIBCPP_ASSERT_NOEXCEPT(c.back());
76 ASSERT_SAME_TYPE(decltype(c.back()), C::const_reference);
77 for (int i = 0; i < 10; ++i)
78 assert(c[i] == i);
79 for (int i = 0; i < 10; ++i)
80 assert(c.at(i) == i);
81 assert(c.front() == 0);
82 assert(c.back() == 9);
83 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
84 }
85#if TEST_STD_VER >= 11
86 {
87 typedef std::deque<int, min_allocator<int>> C;
88 C c = make<std::deque<int, min_allocator<int>> >(10);
89 ASSERT_SAME_TYPE(decltype(c[0]), C::reference);
90 LIBCPP_ASSERT_NOEXCEPT(c[0]);
91 LIBCPP_ASSERT_NOEXCEPT(c.front());
92 ASSERT_SAME_TYPE(decltype(c.front()), C::reference);
93 LIBCPP_ASSERT_NOEXCEPT(c.back());
94 ASSERT_SAME_TYPE(decltype(c.back()), C::reference);
95 for (int i = 0; i < 10; ++i)
96 assert(c[i] == i);
97 for (int i = 0; i < 10; ++i)
98 assert(c.at(i) == i);
99 assert(c.front() == 0);
100 assert(c.back() == 9);
101 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
102 }
103 {
104 typedef std::deque<int, min_allocator<int>> C;
105 const C c = make<std::deque<int, min_allocator<int>> >(10);
106 ASSERT_SAME_TYPE(decltype(c[0]), C::const_reference);
107 LIBCPP_ASSERT_NOEXCEPT(c[0]);
108 LIBCPP_ASSERT_NOEXCEPT(c.front());
109 ASSERT_SAME_TYPE(decltype(c.front()), C::const_reference);
110 LIBCPP_ASSERT_NOEXCEPT(c.back());
111 ASSERT_SAME_TYPE(decltype(c.back()), C::const_reference);
112 for (int i = 0; i < 10; ++i)
113 assert(c[i] == i);
114 for (int i = 0; i < 10; ++i)
115 assert(c.at(i) == i);
116 assert(c.front() == 0);
117 assert(c.back() == 9);
118 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
119 }
120#endif
121
122 return 0;
123}
124

source code of libcxx/test/std/containers/sequences/deque/deque.capacity/access.pass.cpp