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
33make(int size, int start = 0 )
34{
35 const int b = 4096 / sizeof(int);
36 int init = 0;
37 if (start > 0)
38 {
39 init = (start+1) / b + ((start+1) % b != 0);
40 init *= b;
41 --init;
42 }
43 C c(init, 0);
44 for (int i = 0; i < init-start; ++i)
45 c.pop_back();
46 for (int i = 0; i < size; ++i)
47 c.push_back(i);
48 for (int i = 0; i < start; ++i)
49 c.pop_front();
50 return c;
51}
52
53int main(int, char**)
54{
55 {
56 typedef std::deque<int> C;
57 C c = make<std::deque<int> >(size: 10);
58 ASSERT_SAME_TYPE(decltype(c[0]), C::reference);
59 LIBCPP_ASSERT_NOEXCEPT( c[0]);
60 LIBCPP_ASSERT_NOEXCEPT( c.front());
61 ASSERT_SAME_TYPE(decltype(c.front()), C::reference);
62 LIBCPP_ASSERT_NOEXCEPT( c.back());
63 ASSERT_SAME_TYPE(decltype(c.back()), C::reference);
64 for (int i = 0; i < 10; ++i)
65 assert(c[i] == i);
66 for (int i = 0; i < 10; ++i)
67 assert(c.at(i) == i);
68 assert(c.front() == 0);
69 assert(c.back() == 9);
70 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
71 }
72 {
73 typedef std::deque<int> C;
74 const C c = make<std::deque<int> >(size: 10);
75 ASSERT_SAME_TYPE(decltype(c[0]), C::const_reference);
76 LIBCPP_ASSERT_NOEXCEPT( c[0]);
77 LIBCPP_ASSERT_NOEXCEPT( c.front());
78 ASSERT_SAME_TYPE(decltype(c.front()), C::const_reference);
79 LIBCPP_ASSERT_NOEXCEPT( c.back());
80 ASSERT_SAME_TYPE(decltype(c.back()), C::const_reference);
81 for (int i = 0; i < 10; ++i)
82 assert(c[i] == i);
83 for (int i = 0; i < 10; ++i)
84 assert(c.at(i) == i);
85 assert(c.front() == 0);
86 assert(c.back() == 9);
87 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
88 }
89#if TEST_STD_VER >= 11
90 {
91 typedef std::deque<int, min_allocator<int>> C;
92 C c = make<std::deque<int, min_allocator<int>> >(10);
93 ASSERT_SAME_TYPE(decltype(c[0]), C::reference);
94 LIBCPP_ASSERT_NOEXCEPT( c[0]);
95 LIBCPP_ASSERT_NOEXCEPT( c.front());
96 ASSERT_SAME_TYPE(decltype(c.front()), C::reference);
97 LIBCPP_ASSERT_NOEXCEPT( c.back());
98 ASSERT_SAME_TYPE(decltype(c.back()), C::reference);
99 for (int i = 0; i < 10; ++i)
100 assert(c[i] == i);
101 for (int i = 0; i < 10; ++i)
102 assert(c.at(i) == i);
103 assert(c.front() == 0);
104 assert(c.back() == 9);
105 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
106 }
107 {
108 typedef std::deque<int, min_allocator<int>> C;
109 const C c = make<std::deque<int, min_allocator<int>> >(10);
110 ASSERT_SAME_TYPE(decltype(c[0]), C::const_reference);
111 LIBCPP_ASSERT_NOEXCEPT( c[0]);
112 LIBCPP_ASSERT_NOEXCEPT( c.front());
113 ASSERT_SAME_TYPE(decltype(c.front()), C::const_reference);
114 LIBCPP_ASSERT_NOEXCEPT( c.back());
115 ASSERT_SAME_TYPE(decltype(c.back()), C::const_reference);
116 for (int i = 0; i < 10; ++i)
117 assert(c[i] == i);
118 for (int i = 0; i < 10; ++i)
119 assert(c.at(i) == i);
120 assert(c.front() == 0);
121 assert(c.back() == 9);
122 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
123 }
124#endif
125
126 return 0;
127}
128

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