cuda_sys::cublas
pub unsafe extern "C" fn cublasDtbmv_v2( handle: cublasHandle_t, uplo: cublasFillMode_t, trans: cublasOperation_t, diag: cublasDiagType_t, n: c_int, k: c_int, A: *const f64, lda: c_int, x: *mut f64, incx: c_int) -> cublasStatus_t