345   register struct huft *q;      /* points to current table */  in huft_build()  local
448   q = (struct huft *)NULL;      /* ditto */  in huft_build()
487         if ((q = (struct huft *)malloc((z + 1)*sizeof(struct huft))) ==  in huft_build()
497         *t = q + 1;             /* link to list for huft_free() */  in huft_build()
498         *(t = &(q->v.t)) = (struct huft *)NULL;  in huft_build()
499         u[h] = ++q;             /* table starts after link */  in huft_build()
508           r.v.t = q;            /* pointer to this table */  in huft_build()
536         q[j] = r;  in huft_build()
573   register struct huft *p, *q;  in huft_free()  local
580     q = (--p)->v.t;  in huft_free()
582     p = q;  in huft_free()