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//===----------------------------------------------------------------------===//
//
// 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 "../../../Emplaceable.h"
#include "min_allocator.h"
int main()
{
{
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));
}
}
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