ad_disc_compare_ds
ad_disc_compare_ds(
ad_disc_compare_ds(*value, *new) == 0) {
ad_disc_compare_ds(item->value, value) != 0)||
int ad_disc_compare_ds(ad_disc_ds_t *ds1, ad_disc_ds_t *ds2);
ad_disc_compare_ds(*value, *new) == 0) {