get_tree
static int get_tree OF((__GPRO__ unsigned *l, unsigned n));
if ((r = get_tree(__G__ l, 256)) != 0)
if ((r = get_tree(__G__ l, 64)) != 0) {
if ((r = get_tree(__G__ l, 64)) != 0)
if ((r = get_tree(__G__ l, 64)) != 0) {