// Array and slice copying in Go

package main

import "fmt"

type AA struct {
	ab int
	ac int
}

func main(){
	ott()
}
func ott(){
	// First Arrays
	// make array
	aa := [3]AA{ }
	fmt.Println(aa)
	bb := aa // copy array
	fmt.Printf("aa %p     bb %p\n", &aa, &bb)
	// the array and the copy are totally different things
	for i,_ := range aa {
		fmt.Printf("%d  aa %p     bb %p\n", i, &aa[i], &bb[i])
	}

	// now make a slice
	sl1 := make([]AA, 5)
	sl2 := sl1 // copy the slice
	// based on pointer, they are different
	fmt.Printf("sl1 %p     sl2 %p\n", &sl1, &sl2)
	// but their contents are identical
	for i,_ := range sl1 {
		fmt.Printf("%d  sl1 %p     sl2 %p\n", i, &sl1[i], &sl2[i])
	}
	
	sl3 := sl2[0:2] // make a subslice
	// again, its contents are identical.
	for i,_ := range sl3 {
		fmt.Printf("%d  sl3 %p  \n", i, &sl3[i])
	}	
}