@Override
default Tree<T> peek(Consumer<? super T> action) {
Objects.requireNonNull(action, "action is null");
if (!isEmpty()) {
action.accept(head());
}
return this;
}
public void consumePosRange(int iposStart, int iposEnd, Consumer out) {
if (out.ignoring()) return;
int i = nextIndex(iposStart);
int end = nextIndex(iposEnd);
for (; i < end; i++) out.writeFloat(floatAt(i));
}