Function cusolverDnCungbr_bufferSize 

pub unsafe extern "C" fn cusolverDnCungbr_bufferSize(
    handle: cusolverDnHandle_t,
    side: cublasSideMode_t,
    m: c_int,
    n: c_int,
    k: c_int,
    A: *const cuComplex,
    lda: c_int,
    tau: *const cuComplex,
    lwork: *mut c_int,
) -> cusolverStatus_t