2052   mp_digit *dat = da + len - 1, *dbt = db + len - 1;  in s_cdig()  local
2054   for (/* */; len != 0; --len, --dat, --dbt) {  in s_cdig()
2055     if (*dat > *dbt)  in s_cdig()
2057     else if (*dat < *dbt)  in s_cdig()
2263     mp_digit *dbt = db;  in s_umul()  local
2269     for (b = 0; b < size_b; ++b, ++dbt, ++dct) {  in s_umul()
2270       w = (mp_word)*da * (mp_word)*dbt + w + (mp_word)*dct;  in s_umul()
2754   mp_digit  *db, *dbt, umu, d;  in s_embar()  local
2758   umu = MP_USED(mu); db = MP_DIGITS(b); dbt = db + MP_USED(b) - 1;  in s_embar()
2768   while (db < dbt) {  in s_embar()
2795   d = *dbt;  in s_embar()