Function ciarlet_element_push_forward 

pub unsafe fn ciarlet_element_push_forward<E: MappedFiniteElement<CellType = ReferenceCellType>, TGeo: RlstScalar>(
    element: &E,
    npoints: usize,
    nfunctions: usize,
    gdim: usize,
    reference_values: *const TGeo,
    nderivs: usize,
    j: *const TGeo,
    jdet: *const TGeo,
    jinv: *const TGeo,
    physical_values: *mut c_void,
)