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annotate examples/code/funcdemo.cc @ 20578:2f8500ca91d3

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eliminate error_state from example files * addtwomatrices.cc, celldemo.cc, embedded.cc, fortrandemo.cc, funcdemo.cc, globaldemo.cc, helloworld.cc, make_int.cc, paramdemo.cc, stringdemo.cc, structdemo.cc, unwinddemo.cc: Eliminate use of global error_state variable.
author John W. Eaton <jwe@octave.org>
date Sat, 03 Oct 2015 16:05:27 -0400
parents c8240a60dd01
children
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1 #include <octave/oct.h>
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2 #include <octave/parse.h>
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3
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4 DEFUN_DLD (funcdemo, args, nargout, "Function Demo")
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5 {
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be41c30bcb44 Re-write documentation and all examples of dynamically linked functions.
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6 octave_value_list retval;
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7
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460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
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8 int nargin = args.length ();
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9
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10 if (nargin < 2)
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11 print_usage ();
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12
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13 octave_value_list newargs;
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14
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15 for (octave_idx_type i = nargin - 1; i > 0; i--)
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16 newargs(i-1) = args(i);
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17
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18 if (args(0).is_function_handle () || args(0).is_inline_function ())
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19 {
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20 octave_function *fcn = args(0).function_value ();
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21
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22 retval = feval (fcn, newargs, nargout);
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23 }
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24 else if (args(0).is_string ())
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25 {
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26 std::string fcn = args(0).string_value ();
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27
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28 retval = feval (fcn, newargs, nargout);
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29 }
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30 else
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31 error ("funcdemo: INPUT must be string, inline, or function handle");
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32
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33 return retval;
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34 }