*** test program for CBList class
initial state:
----- begin
count: 0
current node : <none>
----- end
add one integer:
----- begin
count: 1
current node : 10
10
----- end
add second and third integer:
----- begin
count: 3
current node : 20
10
20
30
----- end
add children:
----- begin
count: 6
current node : 20
10
20
40
50
60
30
----- end
move next:
----- begin
count: 6
current node : 30
10
20
40
50
60
30
----- end
move prev and move child:
----- begin
count: 6
current node : 40
10
20
40
50
60
30
----- end
insert children:
----- begin
count: 7
current node : 35
10
20
35
40
50
60
30
----- end
move to tail:
----- begin
count: 7
current node : 60
10
20
35
40
50
60
30
----- end
move to head:
----- begin
count: 7
current node : 35
10
20
35
40
50
60
30
----- end
remove:
----- begin
count: 6
current node : 40
10
20
40
50
60
30
----- end
move to root:
----- begin
count: 6
current node : 10
10
20
40
50
60
30
----- end
remove:
----- begin
count: 5
current node : 20
20
40
50
60
30
----- end
remove all children:
----- begin
count: 2
current node : 20
20
30
----- end

bye
