annotate examples/unwinddemo.cc @ 7334:274d9642ac10 release-3-0-0

[project @ 2007-12-22 01:42:45 by jwe]
author jwe
date Sat, 22 Dec 2007 01:42:46 +0000
parents 503001863427
children 4295d634797d
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1 /*
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2
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3 Copyright (C) 2006, 2007 John W. Eaton
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or
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8 modify it under the terms of the GNU General Public License
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9 as published by the Free Software Foundation; either
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10 version 3 of the License, or (at your option) any later
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11 version.
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12
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13 Octave is distributed in the hope that it will be useful,
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14 but WITHOUT ANY WARRANTY; without even the implied warranty
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15 of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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16 See the GNU General Public License for more details.
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17
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18 You should have received a copy of the GNU General Public
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19 License along with Octave; see the file COPYING. If not,
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20 see <http://www.gnu.org/licenses/>.
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21
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22 */
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23
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24 #include <octave/oct.h>
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25 #include <octave/unwind-prot.h>
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26
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27 void
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28 err_hand (const char *fmt, ...)
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29 {
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30 // Do nothing!!
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31 }
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32
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33 DEFUN_DLD (unwinddemo, args, nargout, "Unwind Demo")
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34 {
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35 int nargin = args.length();
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36 octave_value retval;
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37 if (nargin < 2)
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38 print_usage ();
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39 else
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40 {
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41 NDArray a = args(0).array_value ();
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42 NDArray b = args(1).array_value ();
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43
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44 if (! error_state)
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45 {
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46 unwind_protect::begin_frame ("Funwinddemo");
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47 unwind_protect_ptr
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48 (current_liboctave_warning_handler);
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49 set_liboctave_warning_handler(err_hand);
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50 retval = octave_value (quotient (a, b));
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51 unwind_protect::run_frame ("Funwinddemo");
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52 }
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53 }
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54 return retval;
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55 }