//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//

// <set>

// class multiset

// iterator insert(const value_type& v);

#include <set>
#include <cassert>

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

template <class Container>
void do_insert_cv_test() {
  typedef Container M;
  typedef typename M::iterator R;
  typedef typename M::value_type VT;
  M m;
  const VT v1(2);
  R r = m.insert(v1);
  assert(r == m.begin());
  assert(m.size() == 1);
  assert(*r == 2);

  const VT v2(1);
  r = m.insert(v2);
  assert(r == m.begin());
  assert(m.size() == 2);
  assert(*r == 1);

  const VT v3(3);
  r = m.insert(v3);
  assert(r == std::prev(m.end()));
  assert(m.size() == 3);
  assert(*r == 3);

  r = m.insert(v3);
  assert(r == std::prev(m.end()));
  assert(m.size() == 4);
  assert(*r == 3);
}

int main(int, char**) {
  do_insert_cv_test<std::multiset<int> >();
#if TEST_STD_VER >= 11
  {
    typedef std::multiset<int, std::less<int>, min_allocator<int>> M;
    do_insert_cv_test<M>();
  }
#endif

  return 0;
}
