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 // unordered_map(initializer_list<value_type> il, size_type n, const hasher& hf);
18 #include <unordered_map>
25 #include "test_macros.h"
26 #include "../../../test_compare.h"
27 #include "../../../test_hash.h"
28 #include "test_allocator.h"
29 #include "min_allocator.h"
33 #ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
35 typedef std::unordered_map<int, std::string,
36 test_hash<std::hash<int> >,
37 test_compare<std::equal_to<int> >,
38 test_allocator<std::pair<const int, std::string> >
40 typedef std::pair<int, std::string> P;
50 test_hash<std::hash<int> >(8)
52 LIBCPP_ASSERT(c.bucket_count() == 7);
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> >(8));
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(std::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 test_hash<std::hash<int> >(8)
87 LIBCPP_ASSERT(c.bucket_count() == 7);
88 assert(c.size() == 4);
89 assert(c.at(1) == "one");
90 assert(c.at(2) == "two");
91 assert(c.at(3) == "three");
92 assert(c.at(4) == "four");
93 assert(c.hash_function() == test_hash<std::hash<int> >(8));
94 assert(c.key_eq() == test_compare<std::equal_to<int> >());
95 assert(c.get_allocator() ==
96 (min_allocator<std::pair<const int, std::string> >()));
98 assert(static_cast<std::size_t>(std::distance(c.begin(), c.end())) == c.size());
99 assert(static_cast<std::size_t>(std::distance(c.cbegin(), c.cend())) == c.size());
100 assert(std::fabs(c.load_factor() - (float)c.size()/c.bucket_count()) < FLT_EPSILON);
101 assert(c.max_load_factor() == 1);
104 #endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS