- product = match (r, '1') ? read_pool_string (r) : (unsigned char *) "";
- author = match (r, '2') ? read_pool_string (r) : (unsigned char *) "";
- subproduct
- = match (r, '3') ? read_pool_string (r) : (unsigned char *) "";
+ product = match (r, '1') ? read_pool_string (r) : empty_string;
+ author = match (r, '2') ? read_pool_string (r) : empty_string;
+ subproduct = match (r, '3') ? read_pool_string (r) : empty_string;