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_set> 11 12// template <class Value, class Hash = hash<Value>, class Pred = equal_to<Value>, 13// class Alloc = allocator<Value>> 14// class unordered_multiset 15 16// pair<const_iterator, const_iterator> equal_range(const key_type& k) const; 17 18#include <unordered_set> 19#include <cassert> 20 21#include "min_allocator.h" 22 23int main() 24{ 25 { 26 typedef std::unordered_multiset<int> C; 27 typedef C::const_iterator I; 28 typedef int P; 29 P a[] = 30 { 31 P(10), 32 P(20), 33 P(30), 34 P(40), 35 P(50), 36 P(50), 37 P(50), 38 P(60), 39 P(70), 40 P(80) 41 }; 42 const C c(std::begin(a), std::end(a)); 43 std::pair<I, I> r = c.equal_range(30); 44 assert(std::distance(r.first, r.second) == 1); 45 assert(*r.first == 30); 46 r = c.equal_range(5); 47 assert(std::distance(r.first, r.second) == 0); 48 r = c.equal_range(50); 49 assert(std::distance(r.first, r.second) == 3); 50 assert(*r.first == 50); 51 ++r.first; 52 assert(*r.first == 50); 53 ++r.first; 54 assert(*r.first == 50); 55 } 56#if TEST_STD_VER >= 11 57 { 58 typedef std::unordered_multiset<int, std::hash<int>, 59 std::equal_to<int>, min_allocator<int>> C; 60 typedef C::const_iterator I; 61 typedef int P; 62 P a[] = 63 { 64 P(10), 65 P(20), 66 P(30), 67 P(40), 68 P(50), 69 P(50), 70 P(50), 71 P(60), 72 P(70), 73 P(80) 74 }; 75 const C c(std::begin(a), std::end(a)); 76 std::pair<I, I> r = c.equal_range(30); 77 assert(std::distance(r.first, r.second) == 1); 78 assert(*r.first == 30); 79 r = c.equal_range(5); 80 assert(std::distance(r.first, r.second) == 0); 81 r = c.equal_range(50); 82 assert(std::distance(r.first, r.second) == 3); 83 assert(*r.first == 50); 84 ++r.first; 85 assert(*r.first == 50); 86 ++r.first; 87 assert(*r.first == 50); 88 } 89#endif 90} 91