github.com/brownsys/tracing-framework-go@v0.0.0-20161210174012-0542a62412fe/go/darwin_amd64/misc/tour/content/methods/exercise-stringer.go (about) 1 // +build OMIT 2 3 package main 4 5 import "fmt" 6 7 type IPAddr [4]byte 8 9 // TODO: Add a "String() string" method to IPAddr. 10 11 func main() { 12 hosts := map[string]IPAddr{ 13 "loopback": {127, 0, 0, 1}, 14 "googleDNS": {8, 8, 8, 8}, 15 } 16 for name, ip := range hosts { 17 fmt.Printf("%v: %v\n", name, ip) 18 } 19 }