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 // UNSUPPORTED: c++03, c++11, c++14
11
12 // template <class InputIterator, class Allocator = allocator<typename iterator_traits<InputIterator>::value_type>>
13 // deque(InputIterator, InputIterator, Allocator = Allocator())
14 // -> deque<typename iterator_traits<InputIterator>::value_type, Allocator>;
15 //
16 // template<ranges::input_range R, class Allocator = allocator<ranges::range_value_t<R>>>
17 // deque(from_range_t, R&&, Allocator = Allocator())
18 // -> deque<ranges::range_value_t<R>, Allocator>; // C++23
19
20 #include "asan_testing.h"
21 #include <array>
22 #include <cassert>
23 #include <climits> // INT_MAX
24 #include <cstddef>
25 #include <deque>
26 #include <iterator>
27
28 #include "deduction_guides_sfinae_checks.h"
29 #include "test_macros.h"
30 #include "test_iterators.h"
31 #include "test_allocator.h"
32
33 struct A {};
34
main(int,char **)35 int main(int, char**)
36 {
37
38 // Test the explicit deduction guides
39 {
40 const int arr[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
41 std::deque deq(std::begin(arr), std::end(arr));
42
43 static_assert(std::is_same_v<decltype(deq), std::deque<int>>, "");
44 assert(std::equal(deq.begin(), deq.end(), std::begin(arr), std::end(arr)));
45 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(deq));
46 }
47
48 {
49 const long arr[] = {INT_MAX, 1L, 2L, 3L };
50 std::deque deq(std::begin(arr), std::end(arr), std::allocator<long>());
51 static_assert(std::is_same_v<decltype(deq)::value_type, long>, "");
52 assert(deq.size() == 4);
53 assert(deq[0] == INT_MAX);
54 assert(deq[1] == 1L);
55 assert(deq[2] == 2L);
56 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(deq));
57 }
58
59 // Test the implicit deduction guides
60
61 {
62 // We don't expect this one to work.
63 // std::deque deq(std::allocator<int>()); // deque (allocator &)
64 }
65
66 {
67 std::deque deq(1, A{}); // deque (size_type, T)
68 static_assert(std::is_same_v<decltype(deq)::value_type, A>, "");
69 static_assert(std::is_same_v<decltype(deq)::allocator_type, std::allocator<A>>, "");
70 assert(deq.size() == 1);
71 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(deq));
72 }
73
74 {
75 std::deque deq(1, A{}, test_allocator<A>()); // deque (size_type, T, allocator)
76 static_assert(std::is_same_v<decltype(deq)::value_type, A>, "");
77 static_assert(std::is_same_v<decltype(deq)::allocator_type, test_allocator<A>>, "");
78 assert(deq.size() == 1);
79 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(deq));
80 }
81
82 {
83 std::deque deq{1U, 2U, 3U, 4U, 5U}; // deque(initializer-list)
84 static_assert(std::is_same_v<decltype(deq)::value_type, unsigned>, "");
85 assert(deq.size() == 5);
86 assert(deq[2] == 3U);
87 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(deq));
88 }
89
90 {
91 std::deque deq({1.0, 2.0, 3.0, 4.0}, test_allocator<double>()); // deque(initializer-list, allocator)
92 static_assert(std::is_same_v<decltype(deq)::value_type, double>, "");
93 static_assert(std::is_same_v<decltype(deq)::allocator_type, test_allocator<double>>, "");
94 assert(deq.size() == 4);
95 assert(deq[3] == 4.0);
96 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(deq));
97 }
98
99 {
100 std::deque<long double> source;
101 std::deque deq(source); // deque(deque &)
102 static_assert(std::is_same_v<decltype(deq)::value_type, long double>, "");
103 static_assert(std::is_same_v<decltype(deq)::allocator_type, std::allocator<long double>>, "");
104 assert(deq.size() == 0);
105 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(deq));
106 }
107
108 {
109 typedef test_allocator<short> Alloc;
110 typedef test_allocator<int> ConvertibleToAlloc;
111
112 {
113 std::deque<short, Alloc> source;
114 std::deque deq(source, Alloc(2));
115 static_assert(std::is_same_v<decltype(deq), decltype(source)>);
116 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(deq));
117 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(source));
118 }
119
120 {
121 std::deque<short, Alloc> source;
122 std::deque deq(source, ConvertibleToAlloc(2));
123 static_assert(std::is_same_v<decltype(deq), decltype(source)>);
124 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(deq));
125 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(source));
126 }
127
128 {
129 std::deque<short, Alloc> source;
130 std::deque deq(std::move(source), Alloc(2));
131 static_assert(std::is_same_v<decltype(deq), decltype(source)>);
132 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(deq));
133 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(source));
134 }
135
136 {
137 std::deque<short, Alloc> source;
138 std::deque deq(std::move(source), ConvertibleToAlloc(2));
139 static_assert(std::is_same_v<decltype(deq), decltype(source)>);
140 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(deq));
141 LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(source));
142 }
143 }
144
145 #if TEST_STD_VER >= 23
146 {
147 {
148 std::deque c(std::from_range, std::array<int, 0>());
149 static_assert(std::is_same_v<decltype(c), std::deque<int>>);
150 }
151
152 {
153 using Alloc = test_allocator<int>;
154 std::deque c(std::from_range, std::array<int, 0>(), Alloc());
155 static_assert(std::is_same_v<decltype(c), std::deque<int, Alloc>>);
156 }
157 }
158 #endif
159
160 SequenceContainerDeductionGuidesSfinaeAway<std::deque, std::deque<int>>();
161
162 return 0;
163 }
164