import io:*
import set:*
import vector_literals:*

fun main():int {
    var s = set(3)
    println(s.contains(3))
    println(s.contains(1))
    s.remove(3)
    s.add(4)
    println(s.contains(3))
    println(s.contains(4))

    println(s == set(4))
    println(s == set(5))
    s.add(set(5))
    println(s == set(4))
    println(s == set(5))
    println(s.contains(3))
    println(s.contains(4))
    println(s.contains(5))

    println("contains set:")
    println(s.contains(from_vector(vector(1,2,3))))
    println(s.contains(from_vector(vector(4,5,3))))
    println(s.contains(from_vector(vector(4,5))))

    println("all:")
    s.for_each( fun(it: int) println(it); )
    println("all ref:")
    s.for_each( fun(it: ref int) println(it); )
    return 0
}