Laboratoire de l'Informatique et du Parallélisme » Pobyso

    ## The function returns none if the list is empty or an error has happened.

    retVal = pobyso_get_list_elements_so_so(listSo)

    if retVal is None:

        return listSa

    ## Just in case the interface is changed and an empty list is returned.

    elif len(retVal) == 0:

        return listSa

    else:

        ## Remember pobyso_get_list_elements_so_so returns more information

        #  than just the elements of the list (# elements, is_ellipti)

        listSaSo, numElements, isEndElliptic = retVal

    if numElements == 0:

        return listSa