closure.v

fn new_counter_generator() fn () int {
  mut count := -1
  return fn () int {
    count = count + 1
    return count
  }
}

fn main() {
	a := new_counter_generator()
    b := new_counter_generator()
    println( a() )
    println( a() )
    println( a() )
    println( a() )
    println( b() )
    println( b() )
}