extended and upright flags in SURF opencv c++ function

what are the equivalent flags of SURF in opencv C++ to python SURF flags extended and upright ? - in python version upright flag decides whether to calculate orientation or not - And extended flag gives option of whether to use 64 dim or 128 dim Is there a to do this similar operation in opencv C++ version of SURF function FYI I am using opencv version 2.4.13