extended and upright flags in SURF opencv c++ function

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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