Function python27_sys::PySlice_GetIndicesEx

pub unsafe extern "C" fn PySlice_GetIndicesEx(
    r: *mut PyObject, 
    length: Py_ssize_t, 
    start: *mut Py_ssize_t, 
    stop: *mut Py_ssize_t, 
    step: *mut Py_ssize_t, 
    slicelength: *mut Py_ssize_t
) -> c_int