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 // UNSUPPORTED: c++98, c++03 11 12 // <map> 13 14 // class multimap 15 16 // template <class... Args> 17 // iterator emplace(Args&&... args); 18 19 #include <map> 20 #include <cassert> 21 22 #include "../../../Emplaceable.h" 23 #include "DefaultOnly.h" 24 #include "min_allocator.h" 25 26 int main() 27 { 28 { 29 typedef std::multimap<int, DefaultOnly> M; 30 typedef M::iterator R; 31 M m; 32 assert(DefaultOnly::count == 0); 33 R r = m.emplace(); 34 assert(r == m.begin()); 35 assert(m.size() == 1); 36 assert(m.begin()->first == 0); 37 assert(m.begin()->second == DefaultOnly()); 38 assert(DefaultOnly::count == 1); 39 r = m.emplace(std::piecewise_construct, std::forward_as_tuple(1), 40 std::forward_as_tuple()); 41 assert(r == next(m.begin())); 42 assert(m.size() == 2); 43 assert(next(m.begin())->first == 1); 44 assert(next(m.begin())->second == DefaultOnly()); 45 assert(DefaultOnly::count == 2); 46 r = m.emplace(std::piecewise_construct, std::forward_as_tuple(1), 47 std::forward_as_tuple()); 48 assert(r == next(m.begin(), 2)); 49 assert(m.size() == 3); 50 assert(next(m.begin(), 2)->first == 1); 51 assert(next(m.begin(), 2)->second == DefaultOnly()); 52 assert(DefaultOnly::count == 3); 53 } 54 assert(DefaultOnly::count == 0); 55 { 56 typedef std::multimap<int, Emplaceable> M; 57 typedef M::iterator R; 58 M m; 59 R r = m.emplace(std::piecewise_construct, std::forward_as_tuple(2), 60 std::forward_as_tuple()); 61 assert(r == m.begin()); 62 assert(m.size() == 1); 63 assert(m.begin()->first == 2); 64 assert(m.begin()->second == Emplaceable()); 65 r = m.emplace(std::piecewise_construct, std::forward_as_tuple(1), 66 std::forward_as_tuple(2, 3.5)); 67 assert(r == m.begin()); 68 assert(m.size() == 2); 69 assert(m.begin()->first == 1); 70 assert(m.begin()->second == Emplaceable(2, 3.5)); 71 r = m.emplace(std::piecewise_construct, std::forward_as_tuple(1), 72 std::forward_as_tuple(3, 3.5)); 73 assert(r == next(m.begin())); 74 assert(m.size() == 3); 75 assert(r->first == 1); 76 assert(r->second == Emplaceable(3, 3.5)); 77 } 78 { 79 typedef std::multimap<int, double> M; 80 typedef M::iterator R; 81 M m; 82 R r = m.emplace(M::value_type(2, 3.5)); 83 assert(r == m.begin()); 84 assert(m.size() == 1); 85 assert(m.begin()->first == 2); 86 assert(m.begin()->second == 3.5); 87 } 88 { 89 typedef std::multimap<int, DefaultOnly, std::less<int>, min_allocator<std::pair<const int, DefaultOnly>>> M; 90 typedef M::iterator R; 91 M m; 92 assert(DefaultOnly::count == 0); 93 R r = m.emplace(); 94 assert(r == m.begin()); 95 assert(m.size() == 1); 96 assert(m.begin()->first == 0); 97 assert(m.begin()->second == DefaultOnly()); 98 assert(DefaultOnly::count == 1); 99 r = m.emplace(std::piecewise_construct, std::forward_as_tuple(1), 100 std::forward_as_tuple()); 101 assert(r == next(m.begin())); 102 assert(m.size() == 2); 103 assert(next(m.begin())->first == 1); 104 assert(next(m.begin())->second == DefaultOnly()); 105 assert(DefaultOnly::count == 2); 106 r = m.emplace(std::piecewise_construct, std::forward_as_tuple(1), 107 std::forward_as_tuple()); 108 assert(r == next(m.begin(), 2)); 109 assert(m.size() == 3); 110 assert(next(m.begin(), 2)->first == 1); 111 assert(next(m.begin(), 2)->second == DefaultOnly()); 112 assert(DefaultOnly::count == 3); 113 } 114 assert(DefaultOnly::count == 0); 115 { 116 typedef std::multimap<int, Emplaceable, std::less<int>, min_allocator<std::pair<const int, Emplaceable>>> M; 117 typedef M::iterator R; 118 M m; 119 R r = m.emplace(std::piecewise_construct, std::forward_as_tuple(2), 120 std::forward_as_tuple()); 121 assert(r == m.begin()); 122 assert(m.size() == 1); 123 assert(m.begin()->first == 2); 124 assert(m.begin()->second == Emplaceable()); 125 r = m.emplace(std::piecewise_construct, std::forward_as_tuple(1), 126 std::forward_as_tuple(2, 3.5)); 127 assert(r == m.begin()); 128 assert(m.size() == 2); 129 assert(m.begin()->first == 1); 130 assert(m.begin()->second == Emplaceable(2, 3.5)); 131 r = m.emplace(std::piecewise_construct, std::forward_as_tuple(1), 132 std::forward_as_tuple(3, 3.5)); 133 assert(r == next(m.begin())); 134 assert(m.size() == 3); 135 assert(r->first == 1); 136 assert(r->second == Emplaceable(3, 3.5)); 137 } 138 { 139 typedef std::multimap<int, double, std::less<int>, min_allocator<std::pair<const int, double>>> M; 140 typedef M::iterator R; 141 M m; 142 R r = m.emplace(M::value_type(2, 3.5)); 143 assert(r == m.begin()); 144 assert(m.size() == 1); 145 assert(m.begin()->first == 2); 146 assert(m.begin()->second == 3.5); 147 } 148 } 149
