view examples/paramdemo.cc @ 14175:3972c4caa60a stable

Add new function is_function_handle (patch #7695) * contributors.in: Add Juan Pablo Carbajal to list of contributors. * func.txi: Add docstring to function handle chapter. * ov-fcn-handle.cc: Add new function is_function_handle ().
author Juan Pablo Carbajal <carbajal@ifi.uzh.ch>
date Sun, 08 Jan 2012 20:26:35 -0800
parents db1f49eaba6b
children 460a3c6d8bf1
line wrap: on
line source

#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;
}