import util:*
import io:*

obj test(Object) {
    var counter:int
    fun construct(): *test {
        counter = 0
        println("construct with 0")
        return this
    }

    fun construct(it:int): *test {
        counter = it
        print("construct with "); println(it)
        return this
    }

    fun copy_construct(old: *test):void {
        counter = old->counter+1
        print("copy construct from "); print(old->counter); print(" to "); println(counter)
    }

    fun destruct():void {
        print("destruct with "); println(counter)
    }
}

fun main():int {
    println(min(1,2))
    println(min(7.0,8.0))
    println(max(1,2))
    println(max(7.0,8.0))

    range(3,13, 3).for_each(fun(i: int) { print(i); })
    println()
    range(2,8).for_each(fun(i: int) { print(i); })
    println()
    println(range(2,8,2).any_true(fun(i: int): bool { return i%2 == 1; } ))
    println(range(3).any_true(fun(i: int): bool { return i%2 == 1; } ))

    var oddPair = make_pair(3, "hi")
    println(oddPair.first)
    println(oddPair.second)

    println("construct")
    var test1.construct():test
    var test2.construct(100):test
    println("make_pair")
    var test_pair = make_pair(test1, test2)
    println("done")
    return 0
}