modernize mxArray class hierarchy * mxarray.in.h: Move mxArray_base class definition here from mex.cc. Don't derive mxArray_base from mxArray. Move all virtual tags from mxArray functions to the corresponding mxArray_base functions. (mxArray_base::as_mxArray): New virtual function. (mxArray::dup): Attempt as_mxArray conversion first. If that succeeds, set name of copy. Othewise, duplicate the rep object. (struct xmxArray): Delete. (mxArray_base::octave_value as_octave_value): Now public. (mxArray_octave_value::octave_value as_octave_value): Now public. (mxArray_number::octave_value as_octave_value): Now public. (mxArray_sparse::octave_value as_octave_value): Now public. (mxArray_struct::octave_value as_octave_value): Now public. (mxArray_cell::octave_value as_octave_value): Now public. (mxArray::mxArray (const xmxArray&)): Delete. (mxArray::mxArray (mxArray_base*, const char*)): Arg is now mxArray_base*, not mxArray*. (mxArray::rep): Now mxArray_base*, not mxArray*. * mex.cc (mxArray_octave_value::dup): Return mxArray_base*, not mxArray*. Don't attempt conversion from octave_value to mxArray here. (mxArray_octave_value::as_mxArray): New function. (mxArray_number::dup): Return mxArray_base*, not mxArray_number*. (mxArray_sparse::dup): Return mxArray_base*, not mxArray_sparse*. (mxArray_struct::dup): Return mxArray_base*, not mxArray_struct*. (mxArray_cell::dup): Return mxArray_base*, not mxArray_dup*.

/*

Copyright (C) 1993-2012 John W. Eaton
Copyright (C) 2009 VZLU Prague

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/>.

*/

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <cstddef>
#include <cstring>

#include "error.h"
#include "unwind-prot.h"
#include "utils.h"

void unwind_protect_safe::gripe_exception (void)
{
  // FIXME: can this throw an exception?
  error ("internal: unhandled exception in unwind_protect handler");
}