Golang tour 48 fibanacci using a closure

gistfile1.txt

// http://tour.golang.org/#48
// 
package main
 
import "fmt"
 
// fibonacci is a function that returns
// a function that returns an int.
func fibonacci() func() int {
        prev := 0;
        cur := 1
        f := func () int {
                s := prev + cur
                // nice - swapping via ordered tuple assignment/unpacking
                prev, cur= cur, s
                return s
        }
        return f
}
 
 
func main() {
        f := fibonacci()
        for i := 0; i < 10; i++ {
                fmt.Println(f())
        }
}