package main
import (
"fmt"
"strings"
"strconv"
)
type IPAddr [4]byte
func (ip IPAddr) String() string{
array := make([]string, len(ip))
for i, b := range ip {
array[i] = strconv.Itoa(int(b))
}
return strings.Join(array, ".")
}
// TODO: Add a "String() string" method to IPAddr.
func main() {
hosts := map[string]IPAddr{
"loopback": {127, 0, 0, 1},
"googleDNS": {8, 8, 8, 8},
}
for name, ip := range hosts {
fmt.Printf("%v: %v\n", name, ip)
}
}
// ================================================
loopback: 127.0.0.1
googleDNS: 8.8.8.8