longest_match
longest_match(deflate_state *s, IPos cur_match) /* cur_match = current match */
longest_match(deflate_state *s, IPos cur_match)
longest_match(deflate_state *s, IPos cur_match) /* cur_match = current match */
longest_match(deflate_state *s, IPos cur_match) /* cur_match = current match */