func ExampleClone() {
	b := []byte("abc")
	clone := bytes.Clone(b)
	fmt.Printf("%s\n", clone)
	clone[0] = 'd'
	fmt.Printf("%s\n", b)
	fmt.Printf("%s\n", clone)
	// Output:
	// abc
	// abc
	// dbc
}

func ExampleCompare() {
	// Interpret Compare's result by comparing it to zero.
	var a, b []byte
	if bytes.Compare(a, b) < 0 {
		// a less b
	}
	if bytes.Compare(a, b) <= 0 {

    Traverser<Character> traverser = Traverser.forGraph(DIAMOND_GRAPH);
    assertEqualCharNodes(traverser.depthFirstPostOrder(charactersOf("")), "");
    assertEqualCharNodes(traverser.depthFirstPostOrder(charactersOf("bc")), "dbc");
    assertEqualCharNodes(traverser.depthFirstPostOrder(charactersOf("a")), "dbca");
    assertEqualCharNodes(traverser.depthFirstPostOrder(charactersOf("acdb")), "dbca");