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 // <unordered_map> 13 14 // template <class Key, class T, class Hash = hash<Key>, class Pred = equal_to<Key>, 15 // class Alloc = allocator<pair<const Key, T>>> 16 // class unordered_map 17 18 // template <class... Args> 19 // iterator emplace_hint(const_iterator p, Args&&... args); 20 21 22 #include <unordered_map> 23 #include <cassert> 24 25 #include "../../../Emplaceable.h" 26 #include "min_allocator.h" 27 28 int main() 29 { 30 { 31 typedef std::unordered_map<int, Emplaceable> C; 32 typedef C::iterator R; 33 C c; 34 C::const_iterator e = c.end(); 35 R r = c.emplace_hint(e, std::piecewise_construct, std::forward_as_tuple(3), 36 std::forward_as_tuple()); 37 assert(c.size() == 1); 38 assert(r->first == 3); 39 assert(r->second == Emplaceable()); 40 41 r = c.emplace_hint(c.end(), std::pair<const int, Emplaceable>(4, Emplaceable(5, 6))); 42 assert(c.size() == 2); 43 assert(r->first == 4); 44 assert(r->second == Emplaceable(5, 6)); 45 46 r = c.emplace_hint(c.end(), std::piecewise_construct, std::forward_as_tuple(5), 47 std::forward_as_tuple(6, 7)); 48 assert(c.size() == 3); 49 assert(r->first == 5); 50 assert(r->second == Emplaceable(6, 7)); 51 } 52 { 53 typedef std::unordered_map<int, Emplaceable, std::hash<int>, std::equal_to<int>, 54 min_allocator<std::pair<const int, Emplaceable>>> C; 55 typedef C::iterator R; 56 C c; 57 C::const_iterator e = c.end(); 58 R r = c.emplace_hint(e, std::piecewise_construct, std::forward_as_tuple(3), 59 std::forward_as_tuple()); 60 assert(c.size() == 1); 61 assert(r->first == 3); 62 assert(r->second == Emplaceable()); 63 64 r = c.emplace_hint(c.end(), std::pair<const int, Emplaceable>(4, Emplaceable(5, 6))); 65 assert(c.size() == 2); 66 assert(r->first == 4); 67 assert(r->second == Emplaceable(5, 6)); 68 69 r = c.emplace_hint(c.end(), std::piecewise_construct, std::forward_as_tuple(5), 70 std::forward_as_tuple(6, 7)); 71 assert(c.size() == 3); 72 assert(r->first == 5); 73 assert(r->second == Emplaceable(6, 7)); 74 } 75 } 76
