IPos
IPos hash_head = NIL; /* head of hash chain */
IPos cur_match /* current match */
IPos limit = s->strstart > (IPos)MAX_DIST(s) ?
s->strstart - (IPos)MAX_DIST(s) : NIL;
IPos start,
IPos match,
static uInt longest_match (deflate_state *s, IPos cur_match);
static void check_match (deflate_state *s, IPos start, IPos match,
IPos hash_head = NIL; /* head of the hash chain */
IPos prev_match; /* previous match */