/*

Copyright (C) 2012-2020 The Octave Project Developers

See the file COPYRIGHT.md in the top-level directory of this distribution
or <https://octave.org/COPYRIGHT.html/>.


This file is part of Octave.

Octave 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 of the License, or
(at your option) any later version.

Octave 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 Octave; see the file COPYING.  If not, see
<https://www.gnu.org/licenses/>.

*/

#if defined (HAVE_CONFIG_H)
#  include "config.h"
#endif

#include "lo-error.h"
#include "singleton-cleanup.h"

singleton_cleanup_list *singleton_cleanup_list::s_instance = nullptr;

singleton_cleanup_list::~singleton_cleanup_list (void)
{
  for (fptr fcn : m_fcn_list)
    {
      fcn ();
    }
}

bool
singleton_cleanup_list::instance_ok (void)
{
  bool retval = true;

  if (! s_instance)
    s_instance = new singleton_cleanup_list ();

  return retval;
}