/* look for existing mask comparable with the one in input */
hash_applied_mask_info_t **hash_applied_mask_info_vec = vec_elt_at_index(am->hash_applied_mask_info_vec_by_lc_index, lc_index);
hash_applied_mask_info_t *minfo;
if (vec_len(*hash_applied_mask_info_vec) > 0) {
/* look for existing mask comparable with the one in input */
hash_applied_mask_info_t **hash_applied_mask_info_vec = vec_elt_at_index(am->hash_applied_mask_info_vec_by_lc_index, lc_index);
hash_applied_mask_info_t *minfo;
if (vec_len(*hash_applied_mask_info_vec) > 0) {