pub type setd_ex_vft = Option<unsafe extern "C" fn(conjalpha: conj_t, diagoffx: doff_t, m: dim_t, n: dim_t, alpha: *const c_void, x: *mut c_void, rs_x: inc_t, cs_x: inc_t, cntx: *const cntx_t, rntm: *mut rntm_t)>;
