view examples/unwinddemo.cc @ 7925:9316b59903c9

Add original imread() files (from octave-forge) to core octave. * * * Modify imread() for partial reliance on GraphicsMagick libs; clean up code.
author Thomas L. Scofield <scofield AT calvin DOT edu>
date Sat, 12 Jul 2008 10:11:30 -0400
parents 503001863427
children 4295d634797d
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/*

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>
#include <octave/unwind-prot.h>

void
err_hand (const char *fmt, ...)
{
  // Do nothing!!
}

DEFUN_DLD (unwinddemo, args, nargout, "Unwind Demo")
{
  int nargin = args.length();
  octave_value retval;
  if (nargin < 2)
    print_usage ();
  else
    {
      NDArray a = args(0).array_value ();
      NDArray b = args(1).array_value ();

      if (! error_state)
        {
          unwind_protect::begin_frame ("Funwinddemo");
          unwind_protect_ptr 
	    (current_liboctave_warning_handler);
          set_liboctave_warning_handler(err_hand);
          retval = octave_value (quotient (a, b));
          unwind_protect::run_frame ("Funwinddemo");
        }
    }
  return retval;
}