//===----------------------------------------------------------------------===//
//
// 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++03, c++11
// <vector>
//  vector<bool>

// template <class... Args> iterator emplace(const_iterator pos, Args&&... args);

#include <vector>
#include <cassert>
#include "test_macros.h"
#include "min_allocator.h"

TEST_CONSTEXPR_CXX20 bool tests() {
  {
    typedef std::vector<bool> C;
    C c;

    C::iterator i = c.emplace(c.cbegin());
    assert(i == c.begin());
    assert(c.size() == 1);
    assert(c.front() == false);

    i = c.emplace(c.cend(), true);
    assert(i == c.end() - 1);
    assert(c.size() == 2);
    assert(c.front() == false);
    assert(c.back() == true);

    i = c.emplace(c.cbegin() + 1, true);
    assert(i == c.begin() + 1);
    assert(c.size() == 3);
    assert(c.front() == false);
    assert(c[1] == true);
    assert(c.back() == true);
  }
  {
    typedef std::vector<bool, min_allocator<bool>> C;
    C c;

    C::iterator i = c.emplace(c.cbegin());
    assert(i == c.begin());
    assert(c.size() == 1);
    assert(c.front() == false);

    i = c.emplace(c.cend(), true);
    assert(i == c.end() - 1);
    assert(c.size() == 2);
    assert(c.front() == false);
    assert(c.back() == true);

    i = c.emplace(c.cbegin() + 1, true);
    assert(i == c.begin() + 1);
    assert(c.size() == 3);
    assert(c.size() == 3);
    assert(c.front() == false);
    assert(c[1] == true);
    assert(c.back() == true);
  }

  return true;
}

int main(int, char**) {
  tests();
#if TEST_STD_VER > 17
  static_assert(tests());
#endif
  return 0;
}
