libstdc++-v3/testsuite/23_containers/forward_list/operations/7.cc

// { dg-do run { target c++11 } }

// Copyright (C) 2008-2023 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3.  If not see
// <http://www.gnu.org/licenses/>.

// C++11 23.3.4.6 Operations [forwardlist.ops]

#include <forward_list>
#include <testsuite_hooks.h>

#include <algorithm>

// This test verifies the following:
//   reverse
void
test01()
{
  const unsigned int n = 13;
  int order[n] = {0,1,2,3,4,5,6,7,8,9,10,11,12};

  std::forward_list<int> fl(order, order + n);

  std::forward_list<int> fl2;
  for (std::size_t i = 0; i < n; ++i)
    fl2.push_front(order[i]);

  fl.reverse();

  VERIFY(std::lexicographical_compare(fl.begin(), fl.end(),
                                      fl2.begin(), fl2.end()) == false);
}

int
main()
{
  test01();
  return 0;
}