nn_cnd_sub
ATTRIBUTE_WARN_UNUSED_RET int nn_cnd_sub(int cnd, nn_t out, nn_src_t in1, nn_src_t in2);
return nn_cnd_sub(1, out, in1, in2);
ret = nn_cnd_sub(larger, out, out, p); EG(ret, err);
ret = nn_cnd_sub(larger, out, out, p); EG(ret, err);
ret = nn_cnd_sub(larger, r, &a_shift, b_norm); EG(ret, err);
ret = nn_cnd_sub(isodd, &a, &a, &b); EG(ret, err);
ret = nn_cnd_sub(isodd & (!smaller), &u, &u, uu); EG(ret, err);
ret = nn_cnd_sub(cmp != 0, uu, uu, uu); EG(ret, err);
ret = nn_cnd_sub(cmp >= 0, out, out, p); EG(ret, err);