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// iterator erase(const_iterator first, const_iterator last) 17bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 18bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <unordered_map> 19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <string> 20bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <cassert> 21bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 22061d0cc4db18d17bf01ed14c5db0be098205bd47Marshall Clow#include "min_allocator.h" 237a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant 24bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantint main() 25bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 26bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 27bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef std::unordered_multimap<int, std::string> C; 28bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef std::pair<int, std::string> P; 29bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant P a[] = 30bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant { 31bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant P(1, "one"), 32bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant P(2, "two"), 33bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant P(3, "three"), 34bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant P(4, "four"), 35bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant P(1, "four"), 36bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant P(2, "four"), 37bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant }; 38bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant C c(a, a + sizeof(a)/sizeof(a[0])); 39bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant C::const_iterator i = c.find(2); 40bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant C::const_iterator j = next(i, 2); 41bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant C::iterator k = c.erase(i, i); 42bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(k == i); 43bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(c.size() == 6); 44bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant typedef std::pair<C::iterator, C::iterator> Eq; 45bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant Eq eq = c.equal_range(1); 46bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::distance(eq.first, eq.second) == 2); 47bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant k = eq.first; 48bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(k->first == 1); 49bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(k->second == "one"); 50bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant ++k; 51bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(k->first == 1); 52bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(k->second == "four"); 53bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant eq = c.equal_range(2); 54bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::distance(eq.first, eq.second) == 2); 55bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant k = eq.first; 56bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(k->first == 2); 57bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(k->second == "two"); 58bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant ++k; 59bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(k->first == 2); 60bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(k->second == "four"); 61bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant eq = c.equal_range(3); 62bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::distance(eq.first, eq.second) == 1); 63bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant k = eq.first; 64bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(k->first == 3); 65bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(k->second == "three"); 66bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant eq = c.equal_range(4); 67bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::distance(eq.first, eq.second) == 1); 68bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant k = eq.first; 69bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(k->first == 4); 70bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(k->second == "four"); 71bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::distance(c.begin(), c.end()) == c.size()); 72bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::distance(c.cbegin(), c.cend()) == c.size()); 73bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 74bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant k = c.erase(i, j); 75bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(c.size() == 4); 76bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant eq = c.equal_range(1); 77bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::distance(eq.first, eq.second) == 2); 78bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant k = eq.first; 79bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(k->first == 1); 80bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(k->second == "one"); 81bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant ++k; 82bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(k->first == 1); 83bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(k->second == "four"); 84bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant eq = c.equal_range(3); 85bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::distance(eq.first, eq.second) == 1); 86bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant k = eq.first; 87bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(k->first == 3); 88bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(k->second == "three"); 89bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant eq = c.equal_range(4); 90bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::distance(eq.first, eq.second) == 1); 91bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant k = eq.first; 92bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(k->first == 4); 93bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(k->second == "four"); 94bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::distance(c.begin(), c.end()) == c.size()); 95bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(std::distance(c.cbegin(), c.cend()) == c.size()); 96bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 97bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant k = c.erase(c.cbegin(), c.cend()); 98bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(c.size() == 0); 99bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(k == c.end()); 100bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant } 1017a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant#if __cplusplus >= 201103L 1027a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant { 1037a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant typedef std::unordered_multimap<int, std::string, std::hash<int>, std::equal_to<int>, 1047a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant min_allocator<std::pair<const int, std::string>>> C; 1057a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant typedef std::pair<int, std::string> P; 1067a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant P a[] = 1077a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant { 1087a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant P(1, "one"), 1097a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant P(2, "two"), 1107a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant P(3, "three"), 1117a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant P(4, "four"), 1127a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant P(1, "four"), 1137a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant P(2, "four"), 1147a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant }; 1157a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant C c(a, a + sizeof(a)/sizeof(a[0])); 1167a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant C::const_iterator i = c.find(2); 1177a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant C::const_iterator j = next(i, 2); 1187a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant C::iterator k = c.erase(i, i); 1197a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(k == i); 1207a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(c.size() == 6); 1217a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant typedef std::pair<C::iterator, C::iterator> Eq; 1227a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant Eq eq = c.equal_range(1); 1237a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(std::distance(eq.first, eq.second) == 2); 1247a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant k = eq.first; 1257a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(k->first == 1); 1267a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(k->second == "one"); 1277a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant ++k; 1287a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(k->first == 1); 1297a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(k->second == "four"); 1307a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant eq = c.equal_range(2); 1317a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(std::distance(eq.first, eq.second) == 2); 1327a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant k = eq.first; 1337a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(k->first == 2); 1347a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(k->second == "two"); 1357a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant ++k; 1367a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(k->first == 2); 1377a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(k->second == "four"); 1387a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant eq = c.equal_range(3); 1397a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(std::distance(eq.first, eq.second) == 1); 1407a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant k = eq.first; 1417a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(k->first == 3); 1427a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(k->second == "three"); 1437a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant eq = c.equal_range(4); 1447a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(std::distance(eq.first, eq.second) == 1); 1457a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant k = eq.first; 1467a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(k->first == 4); 1477a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(k->second == "four"); 1487a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(std::distance(c.begin(), c.end()) == c.size()); 1497a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(std::distance(c.cbegin(), c.cend()) == c.size()); 1507a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant 1517a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant k = c.erase(i, j); 1527a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(c.size() == 4); 1537a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant eq = c.equal_range(1); 1547a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(std::distance(eq.first, eq.second) == 2); 1557a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant k = eq.first; 1567a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(k->first == 1); 1577a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(k->second == "one"); 1587a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant ++k; 1597a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(k->first == 1); 1607a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(k->second == "four"); 1617a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant eq = c.equal_range(3); 1627a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(std::distance(eq.first, eq.second) == 1); 1637a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant k = eq.first; 1647a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(k->first == 3); 1657a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(k->second == "three"); 1667a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant eq = c.equal_range(4); 1677a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(std::distance(eq.first, eq.second) == 1); 1687a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant k = eq.first; 1697a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(k->first == 4); 1707a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(k->second == "four"); 1717a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(std::distance(c.begin(), c.end()) == c.size()); 1727a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(std::distance(c.cbegin(), c.cend()) == c.size()); 1737a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant 1747a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant k = c.erase(c.cbegin(), c.cend()); 1757a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(c.size() == 0); 1767a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant assert(k == c.end()); 1777a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant } 1787a6b7cedcb3359ad7d77e355b02ab982d9d2b25bHoward Hinnant#endif 179bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 180