tree_desc_s       201 third_party/zlib/deflate.h     struct tree_desc_s l_desc;               /* desc. for literal tree */
tree_desc_s       202 third_party/zlib/deflate.h     struct tree_desc_s d_desc;               /* desc. for distance tree */
tree_desc_s       203 third_party/zlib/deflate.h     struct tree_desc_s bl_desc;              /* desc. for bit length tree */