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annotate examples/structdemo.cc @ 18479:85d31344fb23 stable rc-3-8-1-2

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3.8.1 release candidate 2 * configure.ac (OCTAVE_VERSION): Bump to 3.8.1-rc2. (OCTAVE_MINOR_VERSION): Bump to 1-rc2. (OCTAVE_RELEASE_DATE): Set to 2014-02-14.
author John W. Eaton <jwe@octave.org>
date Mon, 17 Feb 2014 02:20:39 -0500
parents be41c30bcb44
children
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1 #include <octave/oct.h>
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2 #include <octave/ov-struct.h>
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3
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4 DEFUN_DLD (structdemo, args, , "Struct Demo")
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5 {
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6 octave_value retval;
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7 int nargin = args.length ();
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8
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9 if (args.length () == 2)
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10 {
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11 octave_scalar_map arg0 = args(0).scalar_map_value ();
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12 //octave_map arg0 = args(0).map_value ();
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14 if (! error_state)
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15 {
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16 std::string arg1 = args(1).string_value ();
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17
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18 if (! error_state)
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19 {
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20 octave_value tmp = arg0.contents (arg1);
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21 //octave_value tmp = arg0.contents (arg1)(0);
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23 if (tmp.is_defined ())
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24 {
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25 octave_scalar_map st;
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27 st.assign ("selected", tmp);
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29 retval = octave_value (st);
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30 }
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31 else
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32 error ("structdemo: struct does not have a field named '%s'\n",
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33 arg1.c_str ());
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34 }
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35 else
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36 error ("structdemo: ARG2 must be a character string");
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37 }
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38 else
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39 error ("structdemo: ARG1 must be a struct");
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40 }
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41 else
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42 print_usage ();
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43
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44 return retval;
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45 }