/*

Copyright (C) 2006, 2007 John W. Eaton

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 <http://www.gnu.org/licenses/>.

*/

#include <octave/oct.h>

DEFUN_DLD (paramdemo, args, nargout, 
	   "Parameter Check Demo.")
{
  int nargin = args.length ();
  octave_value retval;

  if (nargin != 1)
    print_usage();
  else if (nargout != 0)
    error ("paramdemo: function has no output arguments");
  else
    {
      NDArray m = args(0).array_value();
      double min_val = -10.0;
      double max_val = 10.0;
      octave_stdout << "Properties of input array:\n";
      if (m.any_element_is_negative ())
        octave_stdout << "  includes negative values\n";
      if (m.any_element_is_inf_or_nan())
        octave_stdout << "  includes Inf or NaN values\n";
      if (m.any_element_not_one_or_zero())
        octave_stdout << 
	  "  includes other values than 1 and 0\n";
      if (m.all_elements_are_int_or_inf_or_nan())
        octave_stdout << 
	  "  includes only int, Inf or NaN values\n";
      if (m.all_integers (min_val, max_val))
        octave_stdout << 
	  "  includes only integers in [-10,10]\n";
    }
  return retval;
}