pub unsafe extern "C" fn bli_dsubd_ex(
diagoffx: doff_t,
diagx: diag_t,
transx: trans_t,
m: dim_t,
n: dim_t,
x: *mut f64,
rs_x: inc_t,
cs_x: inc_t,
y: *mut f64,
rs_y: inc_t,
cs_y: inc_t,
cntx: *mut cntx_t,
rntm: *mut rntm_t,
)