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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 |
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26 DEFUN_DLD (globaldemo, args, , "Global demo.") |
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27 { |
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28 int nargin = args.length (); |
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29 octave_value retval; |
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30 |
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31 if (nargin != 1) |
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32 print_usage (); |
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33 else |
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34 { |
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35 std::string s = args(0).string_value (); |
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36 if (! error_state) |
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37 { |
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38 octave_value tmp = get_global_value (s, true); |
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39 if (tmp.is_defined ()) |
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40 retval = tmp; |
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41 else |
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42 retval = "Global variable not found"; |
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43 |
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44 set_global_value ("a", 42.0); |
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45 } |
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46 } |
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47 return retval; |
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48 } |