pub unsafe extern "C" fn cublasSgemv_v2( handle: cublasHandle_t, trans: cublasOperation_t, m: c_int, n: c_int, alpha: *const f32, A: *const f32, lda: c_int, x: *const f32, incx: c_int, beta: *const f32, y: *mut f32, incy: c_int) -> cublasStatus_t