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

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
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;
}