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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
//
//===----------------------------------------------------------------------===//
// <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
// https://llvm.org/PR16538
// https://llvm.org/PR16549
#include <unordered_map>
#include <cassert>
#include "test_macros.h"
struct Key {
template <typename T> Key(const T&) {}
bool operator== (const Key&) const { return true; }
};
namespace std
{
template <>
struct hash<Key>
{
size_t operator()(Key const &) const {return 0;}
};
}
int main(int, char**)
{
typedef std::unordered_map<Key, int> MapT;
typedef MapT::iterator Iter;
MapT map;
Iter it = map.find(Key(0));
assert(it == map.end());
std::pair<Iter, bool> result = map.insert(std::make_pair(Key(0), 42));
assert(result.second);
assert(result.first->second == 42);
return 0;
}
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