thtab
struct thtab *th_next;
static thtab_t *thtab[1009]; /* hash table */
for (thte = thtab[h]; thte != NULL; thte = thte->th_next) {
thte->th_next = thtab[h];
thtab[h] = thte;
return v % (sizeof(thtab) / sizeof(thtab[0]));