//===----------------------------------------------------------------------===//
//
// 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 set

// iterator insert(const_iterator position, const value_type& v);

#include <set>
#include <cassert>

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

int main(int, char**) {
  {
    typedef std::set<int> M;
    typedef M::iterator R;
    M m;
    R r = m.insert(m.cend(), M::value_type(2));
    assert(r == m.begin());
    assert(m.size() == 1);
    assert(*r == 2);

    r = m.insert(m.cend(), M::value_type(1));
    assert(r == m.begin());
    assert(m.size() == 2);
    assert(*r == 1);

    r = m.insert(m.cend(), M::value_type(3));
    assert(r == std::prev(m.end()));
    assert(m.size() == 3);
    assert(*r == 3);

    r = m.insert(m.cend(), M::value_type(3));
    assert(r == std::prev(m.end()));
    assert(m.size() == 3);
    assert(*r == 3);
  }
#if TEST_STD_VER >= 11
  {
    typedef std::set<int, std::less<int>, min_allocator<int>> M;
    typedef M::iterator R;
    M m;
    R r = m.insert(m.cend(), M::value_type(2));
    assert(r == m.begin());
    assert(m.size() == 1);
    assert(*r == 2);

    r = m.insert(m.cend(), M::value_type(1));
    assert(r == m.begin());
    assert(m.size() == 2);
    assert(*r == 1);

    r = m.insert(m.cend(), M::value_type(3));
    assert(r == std::prev(m.end()));
    assert(m.size() == 3);
    assert(*r == 3);

    r = m.insert(m.cend(), M::value_type(3));
    assert(r == std::prev(m.end()));
    assert(m.size() == 3);
    assert(*r == 3);
  }
#endif

  return 0;
}