1bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 2bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 3f5256e16dfc425c1d466f6308d4026d529ce9e0bHoward Hinnant// The LLVM Compiler Infrastructure 4bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 5b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// This file is dual licensed under the MIT and the University of Illinois Open 6b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// Source Licenses. See LICENSE.TXT for details. 7bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 8bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 9bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 10bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// <unordered_map> 11bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 12bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// template <class Key, class T, class Hash = hash<Key>, class Pred = equal_to<Key>, 13bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// class Alloc = allocator<pair<const Key, T>>> 14bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// class unordered_multimap 15bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 16bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// void rehash(size_type n); 17bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 18bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <unordered_map> 19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <string> 20bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <cassert> 21f836d531b4146465342939fe32ae47d157ee07b2Howard Hinnant#include <cfloat> 22bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 23061d0cc4db18d17bf01ed14c5db0be098205bd47Marshall Clow#include "min_allocator.h" 247a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant 257a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnanttemplate <class C> 267a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnantvoid test(const C& c) 27bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 28bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(c.size() == 6); 297a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant typedef std::pair<typename C::const_iterator, typename C::const_iterator> Eq; 30bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant Eq eq = c.equal_range(1); 31bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::distance(eq.first, eq.second) == 2); 327a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant typename C::const_iterator i = eq.first; 33bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(i->first == 1); 34bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(i->second == "one"); 35bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant ++i; 36bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(i->first == 1); 37bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(i->second == "four"); 38bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant eq = c.equal_range(2); 39bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::distance(eq.first, eq.second) == 2); 40bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant i = eq.first; 41bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(i->first == 2); 42bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(i->second == "two"); 43bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant ++i; 44bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(i->first == 2); 45bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(i->second == "four"); 46bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 47bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant eq = c.equal_range(3); 48bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::distance(eq.first, eq.second) == 1); 49bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant i = eq.first; 50bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(i->first == 3); 51bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(i->second == "three"); 52bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant eq = c.equal_range(4); 53bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::distance(eq.first, eq.second) == 1); 54bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant i = eq.first; 55bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(i->first == 4); 56bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(i->second == "four"); 57bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::distance(c.begin(), c.end()) == c.size()); 58bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::distance(c.cbegin(), c.cend()) == c.size()); 59f836d531b4146465342939fe32ae47d157ee07b2Howard Hinnant assert(fabs(c.load_factor() - (float)c.size()/c.bucket_count()) < FLT_EPSILON); 60bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 61bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 62bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantint main() 63bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 64bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 65bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef std::unordered_multimap<int, std::string> C; 66bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef std::pair<int, std::string> P; 67bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant P a[] = 68bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 69bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant P(1, "one"), 70bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant P(2, "two"), 71bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant P(3, "three"), 72bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant P(4, "four"), 73bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant P(1, "four"), 74bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant P(2, "four"), 75bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant }; 76bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant C c(a, a + sizeof(a)/sizeof(a[0])); 77bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test(c); 78bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(c.bucket_count() >= 7); 79bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant c.rehash(3); 80bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(c.bucket_count() == 7); 81bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test(c); 82bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant c.max_load_factor(2); 83bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant c.rehash(3); 84bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(c.bucket_count() == 3); 85bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test(c); 86bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant c.rehash(31); 87bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(c.bucket_count() == 31); 88bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test(c); 89bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 907a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant#if __cplusplus >= 201103L 917a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant { 927a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant typedef std::unordered_multimap<int, std::string, std::hash<int>, std::equal_to<int>, 937a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant min_allocator<std::pair<const int, std::string>>> C; 947a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant typedef std::pair<int, std::string> P; 957a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant P a[] = 967a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant { 977a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant P(1, "one"), 987a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant P(2, "two"), 997a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant P(3, "three"), 1007a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant P(4, "four"), 1017a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant P(1, "four"), 1027a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant P(2, "four"), 1037a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant }; 1047a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant C c(a, a + sizeof(a)/sizeof(a[0])); 1057a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant test(c); 1067a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(c.bucket_count() >= 7); 1077a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant c.rehash(3); 1087a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(c.bucket_count() == 7); 1097a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant test(c); 1107a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant c.max_load_factor(2); 1117a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant c.rehash(3); 1127a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(c.bucket_count() == 3); 1137a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant test(c); 1147a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant c.rehash(31); 1157a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(c.bucket_count() == 31); 1167a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant test(c); 1177a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant } 1187a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant#endif 119bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 120