| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // UNSUPPORTED: c++98, c++03 |
| |
| // <unordered_map> |
| |
| // template <class Key, class T, class Hash = hash<Key>, class Pred = equal_to<Key>, |
| // class Alloc = allocator<pair<const Key, T>>> |
| // class unordered_map |
| |
| // template <class... Args> |
| // pair<iterator, bool> emplace(Args&&... args); |
| |
| #include <unordered_map> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| #include "../../../Emplaceable.h" |
| #include "min_allocator.h" |
| |
| int main(int, char**) |
| { |
| { |
| typedef std::unordered_map<int, Emplaceable> C; |
| typedef std::pair<C::iterator, bool> R; |
| C c; |
| R r = c.emplace(std::piecewise_construct, std::forward_as_tuple(3), |
| std::forward_as_tuple()); |
| assert(r.second); |
| assert(c.size() == 1); |
| assert(r.first->first == 3); |
| assert(r.first->second == Emplaceable()); |
| |
| r = c.emplace(std::pair<const int, Emplaceable>(4, Emplaceable(5, 6))); |
| assert(r.second); |
| assert(c.size() == 2); |
| assert(r.first->first == 4); |
| assert(r.first->second == Emplaceable(5, 6)); |
| |
| r = c.emplace(std::piecewise_construct, std::forward_as_tuple(5), |
| std::forward_as_tuple(6, 7)); |
| assert(r.second); |
| assert(c.size() == 3); |
| assert(r.first->first == 5); |
| assert(r.first->second == Emplaceable(6, 7)); |
| } |
| { |
| typedef std::unordered_map<int, Emplaceable, std::hash<int>, std::equal_to<int>, |
| min_allocator<std::pair<const int, Emplaceable>>> C; |
| typedef std::pair<C::iterator, bool> R; |
| C c; |
| R r = c.emplace(std::piecewise_construct, std::forward_as_tuple(3), |
| std::forward_as_tuple()); |
| assert(r.second); |
| assert(c.size() == 1); |
| assert(r.first->first == 3); |
| assert(r.first->second == Emplaceable()); |
| |
| r = c.emplace(std::pair<const int, Emplaceable>(4, Emplaceable(5, 6))); |
| assert(r.second); |
| assert(c.size() == 2); |
| assert(r.first->first == 4); |
| assert(r.first->second == Emplaceable(5, 6)); |
| |
| r = c.emplace(std::piecewise_construct, std::forward_as_tuple(5), |
| std::forward_as_tuple(6, 7)); |
| assert(r.second); |
| assert(c.size() == 3); |
| assert(r.first->first == 5); |
| assert(r.first->second == Emplaceable(6, 7)); |
| } |
| |
| return 0; |
| } |