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1 /* |
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2 |
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3 Copyright (C) 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 modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 3 of the License, or (at your |
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10 option) any later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, see |
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19 <http://www.gnu.org/licenses/>. |
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20 |
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21 */ |
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22 |
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23 #include <octave/oct.h> |
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24 #include <octave/ov-struct.h> |
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25 |
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26 DEFUN_DLD (structdemo, args, , "Struct 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 != 2) |
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32 print_usage (); |
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33 else |
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34 { |
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35 Octave_map arg0 = args(0).map_value (); |
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36 std::string arg1 = args(1).string_value (); |
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37 |
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38 if (! error_state && arg0.contains (arg1)) |
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39 { |
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40 // The following two lines might be written as |
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41 // octave_value tmp; |
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42 // for (Octave_map::iterator p0 = arg0.begin() ; |
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43 // p0 != arg0.end(); p0++ ) |
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44 // if (arg0.key (p0) == arg1) |
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45 // { |
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46 // tmp = arg0.contents (p0) (0); |
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47 // break; |
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48 // } |
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49 // though using seek is more concise. |
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50 Octave_map::const_iterator p1 = arg0.seek (arg1); |
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51 octave_value tmp = arg0.contents(p1)(0); |
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52 Octave_map st; |
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53 st.assign ("selected", tmp); |
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54 retval = octave_value (st); |
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55 } |
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56 } |
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57 return retval; |
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58 } |
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59 |
