1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <unordered_map> 11 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 15 16 // unordered_map& operator=(const unordered_map& u); 17 18 #include <unordered_map> 19 #include <string> 20 #include <cassert> 21 #include <cfloat> 22 23 #include "../../../test_compare.h" 24 #include "../../../test_hash.h" 25 #include "../../../test_allocator.h" 26 #include "../../../min_allocator.h" 27 28 int main() 29 { 30 { 31 typedef test_allocator<std::pair<const int, std::string> > A; 32 typedef std::unordered_map<int, std::string, 33 test_hash<std::hash<int> >, 34 test_compare<std::equal_to<int> >, 35 A 36 > C; 37 typedef std::pair<int, std::string> P; 38 P a[] = 39 { 40 P(1, "one"), 41 P(2, "two"), 42 P(3, "three"), 43 P(4, "four"), 44 P(1, "four"), 45 P(2, "four"), 46 }; 47 C c0(a, a + sizeof(a)/sizeof(a[0]), 48 7, 49 test_hash<std::hash<int> >(8), 50 test_compare<std::equal_to<int> >(9), 51 A(10) 52 ); 53 C c(a, a + 2, 54 7, 55 test_hash<std::hash<int> >(2), 56 test_compare<std::equal_to<int> >(3), 57 A(4) 58 ); 59 c = c0; 60 assert(c.bucket_count() == 7); 61 assert(c.size() == 4); 62 assert(c.at(1) == "one"); 63 assert(c.at(2) == "two"); 64 assert(c.at(3) == "three"); 65 assert(c.at(4) == "four"); 66 assert(c.hash_function() == test_hash<std::hash<int> >(8)); 67 assert(c.key_eq() == test_compare<std::equal_to<int> >(9)); 68 assert(c.get_allocator() == A(4)); 69 assert(!c.empty()); 70 assert(std::distance(c.begin(), c.end()) == c.size()); 71 assert(std::distance(c.cbegin(), c.cend()) == c.size()); 72 assert(fabs(c.load_factor() - (float)c.size()/c.bucket_count()) < FLT_EPSILON); 73 assert(c.max_load_factor() == 1); 74 } 75 { 76 typedef other_allocator<std::pair<const int, std::string> > A; 77 typedef std::unordered_map<int, std::string, 78 test_hash<std::hash<int> >, 79 test_compare<std::equal_to<int> >, 80 A 81 > C; 82 typedef std::pair<int, std::string> P; 83 P a[] = 84 { 85 P(1, "one"), 86 P(2, "two"), 87 P(3, "three"), 88 P(4, "four"), 89 P(1, "four"), 90 P(2, "four"), 91 }; 92 C c0(a, a + sizeof(a)/sizeof(a[0]), 93 7, 94 test_hash<std::hash<int> >(8), 95 test_compare<std::equal_to<int> >(9), 96 A(10) 97 ); 98 C c(a, a + 2, 99 7, 100 test_hash<std::hash<int> >(2), 101 test_compare<std::equal_to<int> >(3), 102 A(4) 103 ); 104 c = c0; 105 assert(c.bucket_count() >= 5); 106 assert(c.size() == 4); 107 assert(c.at(1) == "one"); 108 assert(c.at(2) == "two"); 109 assert(c.at(3) == "three"); 110 assert(c.at(4) == "four"); 111 assert(c.hash_function() == test_hash<std::hash<int> >(8)); 112 assert(c.key_eq() == test_compare<std::equal_to<int> >(9)); 113 assert(c.get_allocator() == A(10)); 114 assert(!c.empty()); 115 assert(std::distance(c.begin(), c.end()) == c.size()); 116 assert(std::distance(c.cbegin(), c.cend()) == c.size()); 117 assert(fabs(c.load_factor() - (float)c.size()/c.bucket_count()) < FLT_EPSILON); 118 assert(c.max_load_factor() == 1); 119 } 120 #if __cplusplus >= 201103L 121 { 122 typedef min_allocator<std::pair<const int, std::string> > A; 123 typedef std::unordered_map<int, std::string, 124 test_hash<std::hash<int> >, 125 test_compare<std::equal_to<int> >, 126 A 127 > C; 128 typedef std::pair<int, std::string> P; 129 P a[] = 130 { 131 P(1, "one"), 132 P(2, "two"), 133 P(3, "three"), 134 P(4, "four"), 135 P(1, "four"), 136 P(2, "four"), 137 }; 138 C c0(a, a + sizeof(a)/sizeof(a[0]), 139 7, 140 test_hash<std::hash<int> >(8), 141 test_compare<std::equal_to<int> >(9), 142 A() 143 ); 144 C c(a, a + 2, 145 7, 146 test_hash<std::hash<int> >(2), 147 test_compare<std::equal_to<int> >(3), 148 A() 149 ); 150 c = c0; 151 assert(c.bucket_count() == 7); 152 assert(c.size() == 4); 153 assert(c.at(1) == "one"); 154 assert(c.at(2) == "two"); 155 assert(c.at(3) == "three"); 156 assert(c.at(4) == "four"); 157 assert(c.hash_function() == test_hash<std::hash<int> >(8)); 158 assert(c.key_eq() == test_compare<std::equal_to<int> >(9)); 159 assert(c.get_allocator() == A()); 160 assert(!c.empty()); 161 assert(std::distance(c.begin(), c.end()) == c.size()); 162 assert(std::distance(c.cbegin(), c.cend()) == c.size()); 163 assert(fabs(c.load_factor() - (float)c.size()/c.bucket_count()) < FLT_EPSILON); 164 assert(c.max_load_factor() == 1); 165 } 166 #endif 167 } 168