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_multimap 15 16 // unordered_multimap(initializer_list<value_type> il, size_type n); 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 27 int main() 28 { 29 #ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 30 { 31 typedef std::unordered_multimap<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 C c({ 38 P(1, "one"), 39 P(2, "two"), 40 P(3, "three"), 41 P(4, "four"), 42 P(1, "four"), 43 P(2, "four"), 44 }, 45 7 46 ); 47 assert(c.bucket_count() == 7); 48 assert(c.size() == 6); 49 typedef std::pair<C::const_iterator, C::const_iterator> Eq; 50 Eq eq = c.equal_range(1); 51 assert(std::distance(eq.first, eq.second) == 2); 52 C::const_iterator i = eq.first; 53 assert(i->first == 1); 54 assert(i->second == "one"); 55 ++i; 56 assert(i->first == 1); 57 assert(i->second == "four"); 58 eq = c.equal_range(2); 59 assert(std::distance(eq.first, eq.second) == 2); 60 i = eq.first; 61 assert(i->first == 2); 62 assert(i->second == "two"); 63 ++i; 64 assert(i->first == 2); 65 assert(i->second == "four"); 66 67 eq = c.equal_range(3); 68 assert(std::distance(eq.first, eq.second) == 1); 69 i = eq.first; 70 assert(i->first == 3); 71 assert(i->second == "three"); 72 eq = c.equal_range(4); 73 assert(std::distance(eq.first, eq.second) == 1); 74 i = eq.first; 75 assert(i->first == 4); 76 assert(i->second == "four"); 77 assert(std::distance(c.begin(), c.end()) == c.size()); 78 assert(std::distance(c.cbegin(), c.cend()) == c.size()); 79 assert(fabs(c.load_factor() - (float)c.size()/c.bucket_count()) < FLT_EPSILON); 80 assert(c.max_load_factor() == 1); 81 assert(c.hash_function() == test_hash<std::hash<int> >()); 82 assert(c.key_eq() == test_compare<std::equal_to<int> >()); 83 assert((c.get_allocator() == test_allocator<std::pair<const int, std::string> >())); 84 } 85 #endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 86 } 87
