//===----------------------------------------------------------------------===//
//
// 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_set>

// template <class Value, class Hash = hash<Value>, class Pred = equal_to<Value>,
//           class Alloc = allocator<Value>>
// class unordered_set

// size_type count(const key_type& k) const;

#include <unordered_set>
#include <cassert>

#include "test_macros.h"
#include "min_allocator.h"

int main(int, char**) {
  {
    typedef std::unordered_set<int> C;
    typedef int P;
    P a[] = {P(10), P(20), P(30), P(40), P(50), P(50), P(50), P(60), P(70), P(80)};
    const C c(std::begin(a), std::end(a));
    assert(c.count(30) == 1);
    assert(c.count(50) == 1);
    assert(c.count(5) == 0);
  }
#if TEST_STD_VER >= 11
  {
    typedef std::unordered_set<int, std::hash<int>, std::equal_to<int>, min_allocator<int>> C;
    typedef int P;
    P a[] = {P(10), P(20), P(30), P(40), P(50), P(50), P(50), P(60), P(70), P(80)};
    const C c(std::begin(a), std::end(a));
    assert(c.count(30) == 1);
    assert(c.count(50) == 1);
    assert(c.count(5) == 0);
  }
#endif

  return 0;
}