1 //===----------------------------------------------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
12 // template <class Key, class T, class Hash = hash<Key>, class Pred = equal_to<Key>,
13 // class Alloc = allocator<pair<const Key, T>>>
14 // class unordered_map
16 // template <class InputIterator>
17 // unordered_map(InputIterator first, InputIterator last);
19 #include <unordered_map>
25 #include "test_macros.h"
26 #include "test_iterators.h"
27 #include "../../../NotConstructible.h"
28 #include "../../../test_compare.h"
29 #include "../../../test_hash.h"
30 #include "test_allocator.h"
31 #include "min_allocator.h"
36 typedef std::unordered_map<int, std::string,
37 test_hash<std::hash<int> >,
38 test_compare<std::equal_to<int> >,
39 test_allocator<std::pair<const int, std::string> >
41 typedef std::pair<int, std::string> P;
51 C c(input_iterator<P*>(a), input_iterator<P*>(a + sizeof(a)/sizeof(a[0])));
52 assert(c.bucket_count() >= 5);
53 assert(c.size() == 4);
54 assert(c.at(1) == "one");
55 assert(c.at(2) == "two");
56 assert(c.at(3) == "three");
57 assert(c.at(4) == "four");
58 assert(c.hash_function() == test_hash<std::hash<int> >());
59 assert(c.key_eq() == test_compare<std::equal_to<int> >());
60 assert(c.get_allocator() ==
61 (test_allocator<std::pair<const int, std::string> >()));
63 assert(static_cast<std::size_t>(std::distance(c.begin(), c.end())) == c.size());
64 assert(static_cast<std::size_t>(std::distance(c.cbegin(), c.cend())) == c.size());
65 assert(fabs(c.load_factor() - (float)c.size()/c.bucket_count()) < FLT_EPSILON);
66 assert(c.max_load_factor() == 1);
68 #if TEST_STD_VER >= 11
70 typedef std::unordered_map<int, std::string,
71 test_hash<std::hash<int> >,
72 test_compare<std::equal_to<int> >,
73 min_allocator<std::pair<const int, std::string> >
75 typedef std::pair<int, std::string> P;
85 C c(input_iterator<P*>(a), input_iterator<P*>(a + sizeof(a)/sizeof(a[0])));
86 assert(c.bucket_count() >= 5);
87 assert(c.size() == 4);
88 assert(c.at(1) == "one");
89 assert(c.at(2) == "two");
90 assert(c.at(3) == "three");
91 assert(c.at(4) == "four");
92 assert(c.hash_function() == test_hash<std::hash<int> >());
93 assert(c.key_eq() == test_compare<std::equal_to<int> >());
94 assert(c.get_allocator() ==
95 (min_allocator<std::pair<const int, std::string> >()));
97 assert(static_cast<std::size_t>(std::distance(c.begin(), c.end())) == c.size());
98 assert(static_cast<std::size_t>(std::distance(c.cbegin(), c.cend())) == c.size());
99 assert(fabs(c.load_factor() - (float)c.size()/c.bucket_count()) < FLT_EPSILON);
100 assert(c.max_load_factor() == 1);
102 #if TEST_STD_VER > 11
104 typedef std::pair<int, std::string> P;
105 typedef test_allocator<std::pair<const int, std::string>> A;
106 typedef test_hash<std::hash<int>> HF;
107 typedef test_compare<std::equal_to<int>> Comp;
108 typedef std::unordered_map<int, std::string, HF, Comp, A> C;
119 C c(input_iterator<P*>(arr), input_iterator<P*>(arr + sizeof(arr)/sizeof(arr[0])), 14);
120 assert(c.bucket_count() >= 14);
121 assert(c.size() == 4);
122 assert(c.at(1) == "one");
123 assert(c.at(2) == "two");
124 assert(c.at(3) == "three");
125 assert(c.at(4) == "four");
126 assert(c.hash_function() == HF());
127 assert(c.key_eq() == Comp());
128 assert(c.get_allocator() == A());
130 assert(static_cast<std::size_t>(std::distance(c.begin(), c.end())) == c.size());
131 assert(static_cast<std::size_t>(std::distance(c.cbegin(), c.cend())) == c.size());
132 assert(fabs(c.load_factor() - (float)c.size()/c.bucket_count()) < FLT_EPSILON);
133 assert(c.max_load_factor() == 1);
136 typedef std::pair<int, std::string> P;
137 typedef test_allocator<std::pair<const int, std::string>> A;
138 typedef test_hash<std::hash<int>> HF;
139 typedef test_compare<std::equal_to<int>> Comp;
140 typedef std::unordered_map<int, std::string, HF, Comp, A> C;
153 C c(input_iterator<P*>(arr), input_iterator<P*>(arr + sizeof(arr)/sizeof(arr[0])), 14, hf, a);
154 assert(c.bucket_count() >= 14);
155 assert(c.size() == 4);
156 assert(c.at(1) == "one");
157 assert(c.at(2) == "two");
158 assert(c.at(3) == "three");
159 assert(c.at(4) == "four");
160 assert(c.hash_function() == hf);
161 assert(!(c.hash_function() == HF()));
162 assert(c.key_eq() == Comp());
163 assert(c.get_allocator() == a);
165 assert(static_cast<std::size_t>(std::distance(c.begin(), c.end())) == c.size());
166 assert(static_cast<std::size_t>(std::distance(c.cbegin(), c.cend())) == c.size());
167 assert(fabs(c.load_factor() - (float)c.size()/c.bucket_count()) < FLT_EPSILON);
168 assert(c.max_load_factor() == 1);