Convert octave_value_list to RowVector

[John Swensen]

Is there a quick and easy way to convert an Octave value list to a 
RowVector?  I have searched through the src and liboctave directories 
and can't find an example.  For now, the only way I can figure out how 
to do it is

RowVector rv;
octave_value_list ovl;

for ( int i = 0 ; i < ovl.length() ; i++ )
 rv(i) = ovl(i).matrix_value ()(0);

There has got to be a better way.  Any suggestions?

John Swensen