pub type dhemv_ft = Option<unsafe extern "C" fn(uploa: uplo_t, conja: conj_t, conjx: conj_t, m: dim_t, alpha: *const f64, a: *const f64, rs_a: inc_t, cs_a: inc_t, x: *const f64, incx: inc_t, beta: *const f64, y: *mut f64, incy: inc_t)>;
