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(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 std::unordered_map<int, std::string, 32 test_hash<std::hash<int> >, 33 test_compare<std::equal_to<int> >, 34 test_allocator<std::pair<const int, std::string> > 35 > C; 36 typedef std::pair<int, std::string> P; 37 P a[] = 38 { 39 P(1, "one"), 40 P(2, "two"), 41 P(3, "three"), 42 P(4, "four"), 43 P(1, "four"), 44 P(2, "four"), 45 }; 46 C c0(a, a + sizeof(a)/sizeof(a[0]), 47 7, 48 test_hash<std::hash<int> >(8), 49 test_compare<std::equal_to<int> >(9), 50 test_allocator<std::pair<const int, std::string> >(10) 51 ); 52 C c = c0; 53 assert(c.bucket_count() == 7); 54 assert(c.size() == 4); 55 assert(c.at(1) == "one"); 56 assert(c.at(2) == "two"); 57 assert(c.at(3) == "three"); 58 assert(c.at(4) == "four"); 59 assert(c.hash_function() == test_hash<std::hash<int> >(8)); 60 assert(c.key_eq() == test_compare<std::equal_to<int> >(9)); 61 assert(c.get_allocator() == 62 (test_allocator<std::pair<const int, std::string> >(10))); 63 assert(!c.empty()); 64 assert(std::distance(c.begin(), c.end()) == c.size()); 65 assert(std::distance(c.cbegin(), c.cend()) == c.size()); 66 assert(fabs(c.load_factor() - (float)c.size()/c.bucket_count()) < FLT_EPSILON); 67 assert(c.max_load_factor() == 1); 68 } 69 #ifndef _LIBCPP_HAS_NO_ADVANCED_SFINAE 70 { 71 typedef std::unordered_map<int, std::string, 72 test_hash<std::hash<int> >, 73 test_compare<std::equal_to<int> >, 74 other_allocator<std::pair<const int, std::string> > 75 > C; 76 typedef std::pair<int, std::string> P; 77 P a[] = 78 { 79 P(1, "one"), 80 P(2, "two"), 81 P(3, "three"), 82 P(4, "four"), 83 P(1, "four"), 84 P(2, "four"), 85 }; 86 C c0(a, a + sizeof(a)/sizeof(a[0]), 87 7, 88 test_hash<std::hash<int> >(8), 89 test_compare<std::equal_to<int> >(9), 90 other_allocator<std::pair<const int, std::string> >(10) 91 ); 92 C c = c0; 93 assert(c.bucket_count() == 7); 94 assert(c.size() == 4); 95 assert(c.at(1) == "one"); 96 assert(c.at(2) == "two"); 97 assert(c.at(3) == "three"); 98 assert(c.at(4) == "four"); 99 assert(c.hash_function() == test_hash<std::hash<int> >(8)); 100 assert(c.key_eq() == test_compare<std::equal_to<int> >(9)); 101 assert(c.get_allocator() == 102 (other_allocator<std::pair<const int, std::string> >(-2))); 103 assert(!c.empty()); 104 assert(std::distance(c.begin(), c.end()) == c.size()); 105 assert(std::distance(c.cbegin(), c.cend()) == c.size()); 106 assert(fabs(c.load_factor() - (float)c.size()/c.bucket_count()) < FLT_EPSILON); 107 assert(c.max_load_factor() == 1); 108 } 109 #endif // _LIBCPP_HAS_NO_ADVANCED_SFINAE 110 #if __cplusplus >= 201103L 111 { 112 typedef std::unordered_map<int, std::string, 113 test_hash<std::hash<int> >, 114 test_compare<std::equal_to<int> >, 115 min_allocator<std::pair<const int, std::string> > 116 > C; 117 typedef std::pair<int, std::string> P; 118 P a[] = 119 { 120 P(1, "one"), 121 P(2, "two"), 122 P(3, "three"), 123 P(4, "four"), 124 P(1, "four"), 125 P(2, "four"), 126 }; 127 C c0(a, a + sizeof(a)/sizeof(a[0]), 128 7, 129 test_hash<std::hash<int> >(8), 130 test_compare<std::equal_to<int> >(9), 131 min_allocator<std::pair<const int, std::string> >() 132 ); 133 C c = c0; 134 assert(c.bucket_count() == 7); 135 assert(c.size() == 4); 136 assert(c.at(1) == "one"); 137 assert(c.at(2) == "two"); 138 assert(c.at(3) == "three"); 139 assert(c.at(4) == "four"); 140 assert(c.hash_function() == test_hash<std::hash<int> >(8)); 141 assert(c.key_eq() == test_compare<std::equal_to<int> >(9)); 142 assert(c.get_allocator() == 143 (min_allocator<std::pair<const int, std::string> >())); 144 assert(!c.empty()); 145 assert(std::distance(c.begin(), c.end()) == c.size()); 146 assert(std::distance(c.cbegin(), c.cend()) == c.size()); 147 assert(fabs(c.load_factor() - (float)c.size()/c.bucket_count()) < FLT_EPSILON); 148 assert(c.max_load_factor() == 1); 149 } 150 #endif 151 } 152
