view examples/funcdemo.cc @ 18151:91a3858ef8cf stable

invoke versioned binaries from octave driver program (bug #40957) * main.in.cc (OCTAVE_VERSION): New macro. (main) Append OCTAVE_VERSION to exec file name. Always set new_argv[0] to full name of file that is executed. * Makefile.am (octave-cli-$(version), octave-gui-$(version), all-local): New rules. (OCTAVE_VERSION_LINKS): New variable. (CLEANFILES): Include $(OCTAVE_VERSION_LINKS) in the list.
author John W. Eaton <jwe@octave.org>
date Thu, 19 Dec 2013 15:24:28 -0500
parents be41c30bcb44
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 ();
  else
    {
      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 ();
          if (! error_state)
            retval = feval (fcn, newargs, nargout);
        }
      else if (args(0).is_string ())
        {
          std::string fcn = args(0).string_value ();
          if (! error_state)
            retval = feval (fcn, newargs, nargout);
        }
      else
        error ("funcdemo: INPUT must be string, inline, or function handle");
    }
  return retval;
}