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// Test nested types and default template args:
12
13// template <class T, class Allocator = allocator<T> >
14// class deque
15// {
16// public:
17// typedef T value_type;
18// typedef Allocator allocator_type;
19// typedef typename allocator_type::reference reference;
20// typedef typename allocator_type::const_reference const_reference;
21// typedef implementation-defined iterator;
22// typedef implementation-defined const_iterator;
23// typedef typename allocator_type::size_type size_type;
24// typedef typename allocator_type::difference_type difference_type;
25// typedef typename allocator_type::pointer pointer;
26// typedef typename allocator_type::const_pointer const_pointer;
27// typedef std::reverse_iterator<iterator> reverse_iterator;
28// typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
29// };
30
31#include <deque>
32#include <iterator>
33#include <type_traits>
34
35#include "test_macros.h"
36#include "test_allocator.h"
37#include "../../Copyable.h"
38#include "min_allocator.h"
39
40template <class T, class Allocator>
41void
42test()
43{
44 typedef std::deque<T, Allocator> C;
45
46 static_assert((std::is_same<typename C::value_type, T>::value), "");
47 static_assert(
48 (std::is_same<typename C::value_type, typename std::allocator_traits<Allocator>::value_type>::value), "");
49 static_assert((std::is_same<typename C::allocator_type, Allocator>::value), "");
50 static_assert(
51 (std::is_same<typename C::size_type, typename std::allocator_traits<Allocator>::size_type>::value), "");
52 static_assert(
53 (std::is_same<typename C::difference_type, typename std::allocator_traits<Allocator>::difference_type>::value),
54 "");
55 static_assert(
56 (std::is_same<typename C::reference, typename std::allocator_traits<Allocator>::value_type&>::value), "");
57 static_assert((std::is_same<typename C::const_reference,
58 const typename std::allocator_traits<Allocator>::value_type&>::value),
59 "");
60 static_assert((std::is_same<typename C::pointer, typename std::allocator_traits<Allocator>::pointer>::value), "");
61 static_assert(
62 (std::is_same<typename C::const_pointer, typename std::allocator_traits<Allocator>::const_pointer>::value), "");
63 static_assert((std::is_same<
64 typename std::iterator_traits<typename C::iterator>::iterator_category,
65 std::random_access_iterator_tag>::value), "");
66 static_assert((std::is_same<
67 typename std::iterator_traits<typename C::const_iterator>::iterator_category,
68 std::random_access_iterator_tag>::value), "");
69 static_assert((std::is_same<
70 typename C::reverse_iterator,
71 std::reverse_iterator<typename C::iterator> >::value), "");
72 static_assert((std::is_same<
73 typename C::const_reverse_iterator,
74 std::reverse_iterator<typename C::const_iterator> >::value), "");
75 static_assert((std::is_signed<typename C::difference_type>::value), "");
76 static_assert((std::is_unsigned<typename C::size_type>::value), "");
77 static_assert((std::is_same<typename C::difference_type,
78 typename std::iterator_traits<typename C::iterator>::difference_type>::value), "");
79 static_assert((std::is_same<typename C::difference_type,
80 typename std::iterator_traits<typename C::const_iterator>::difference_type>::value), "");
81}
82
83int main(int, char**)
84{
85 test<int, test_allocator<int> >();
86 test<int*, std::allocator<int*> >();
87 test<Copyable, test_allocator<Copyable> >();
88 static_assert((std::is_same<std::deque<char>::allocator_type,
89 std::allocator<char> >::value), "");
90
91#if TEST_STD_VER >= 11
92 {
93 typedef std::deque<short, min_allocator<short>> C;
94 static_assert((std::is_same<C::value_type, short>::value), "");
95 static_assert((std::is_same<C::allocator_type, min_allocator<C::value_type> >::value), "");
96 static_assert((std::is_same<C::reference, C::value_type&>::value), "");
97 static_assert((std::is_same<C::const_reference, const C::value_type&>::value), "");
98 static_assert((std::is_same<C::pointer, min_pointer<C::value_type>>::value), "");
99 static_assert((std::is_same<C::const_pointer, min_pointer<const C::value_type>>::value), "");
100// min_allocator doesn't have a size_type, so one gets synthesized
101 static_assert((std::is_same<C::size_type, std::make_unsigned<C::difference_type>::type>::value), "");
102 static_assert((std::is_same<C::difference_type, std::ptrdiff_t>::value), "");
103
104 static_assert((std::is_signed<typename C::difference_type>::value), "");
105 static_assert((std::is_unsigned<typename C::size_type>::value), "");
106 static_assert((std::is_same<typename C::difference_type,
107 typename std::iterator_traits<typename C::iterator>::difference_type>::value), "");
108 static_assert((std::is_same<typename C::difference_type,
109 typename std::iterator_traits<typename C::const_iterator>::difference_type>::value), "");
110 }
111#endif
112
113 return 0;
114}
115

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