cublas_sys::cublasDgemv_v2

pub unsafe extern fn cublasDgemv_v2(handle: cublasHandle_t, trans: cublasOperation_t, m: c_int, n: c_int, alpha: *const c_double, A: *const c_double, lda: c_int, x: *const c_double, incx: c_int, beta: *const c_double, y: *mut c_double, incy: c_int) -> cublasStatus_t