Swap 2 variables with Go pointers. http://play.golang.org/p/troDfxY2zy http://www.golang-book.com/8/index.htm

swap.go

package main

import "fmt"

func swap(x, y *int) {
  var z = *x
  *x = *y
  *y = z
	
}

func main() {
  x := 3
  y := 2
  fmt.Println(x, y)
  swap(&x, &y)
  fmt.Println(x, y)
}

lines 6-8 can also be written as *x, *y = *y, *x