set([1,0,1,0,1,0,1,0]) ----> set(2)
set([]) ----> set(0)
s := set([1,2,3,4,5,6,7,8,9,10]) ----> set(10)
*s ----> 10
1
2
3
4
5
6
7
8
9
10
every write(!sort(s)) ----> none
*copy(s) ----> 10
image(s) ----> "set(10)"
type(s) ----> "set"
member(s,8) ----> 8
member(s,"8") ----> none
s := set([]) ----> set(0)
every insert(s,1 to 100) ----> none
*s ----> 100
every delete(s,15 to 30) ----> none
*s ----> 84
Run-time error 119 at line 24 in expr04.icn
set expected
offending value: &null