Golang tour #43

go_tour_43.go

package main

import "fmt"

// fibonacci is a function that returns
// a function that returns an int.
func fibonacci() func() int {
    a,b,c:= 0,1,0

    return func() int {
        c = a+b
        a = b
        b = c
        return (c)
    }
}

func main() {
    f := fibonacci()
    for i := 0; i < 10; i++ {
        fmt.Println(f())
    }
}