Correct ways to return from a dynamically loaded function?

[Olaf Till]

Hi,

Carlo told me that a certain dynamically loaded function in Octave
Forge made problems (variables lost from Octaves global workspace)
with current development version of Octave, and that these problems
did not occur if the function was changed to have a single return
point.

In the function I had multiple instances of, e.g.

  if (something)
    {
      error ("some error");
      return octave_value_list ();
    }

Is this considered a "legal" way to return? If not, is it considered
legal if the octave_value_list was defined outside the block, i.e.

  octave_value_list ret;
  if (something)
    {
      error ("some error");
      return ret;
    }

?

Olaf