view examples/code/funcdemo.cc @ 20611:40ed9b46a800

new octave_value::string_value method with optional error message * ov.h (octave_value::string_vector): New method. ov-base.cc, ov-base.h (octave_base_value::string_vector): New default method. ov-str-mat.cc, ov-str-mat.h (octave_char_matrix_str::string_value): New method.
author John W. Eaton <jwe@octave.org>
date Thu, 08 Oct 2015 16:43:22 -0400
parents 2f8500ca91d3
children
line wrap: on
line source

#include <octave/oct.h>
#include <octave/parse.h>

DEFUN_DLD (funcdemo, args, nargout, "Function Demo")
{
  octave_value_list retval;

  int nargin = args.length ();

  if (nargin < 2)
    print_usage ();

  octave_value_list newargs;

  for (octave_idx_type i = nargin - 1; i > 0; i--)
    newargs(i-1) = args(i);

  if (args(0).is_function_handle () || args(0).is_inline_function ())
    {
      octave_function *fcn = args(0).function_value ();

      retval = feval (fcn, newargs, nargout);
    }
  else if (args(0).is_string ())
    {
      std::string fcn = args(0).string_value ();

      retval = feval (fcn, newargs, nargout);
    }
  else
    error ("funcdemo: INPUT must be string, inline, or function handle");

  return retval;
}