func main() { var unitType string = os.Args[1] for _, arg := range os.Args[2:] { v, err := strconv.ParseFloat(arg, 64) if err != nil { fmt.Fprintf(os.Stderr, "cf: %v\n", err) os.Exit(1) } switch unitType { case "l": fallthrough case "len": fallthrough case "length": m := lenconv.Meter(v) in := lenconv.Inch(v) fmt.Printf("%s = %s, %s = %s\n", m, lenconv.MToIn(m), in, lenconv.InToM(in)) case "t": fallthrough case "temp": fallthrough case "temperature": f := tempconv.Fahrenheit(v) c := tempconv.Celsius(v) fmt.Printf("%s = %s, %s = %s\n", f, tempconv.FToC(f), c, tempconv.CToF(c)) } } }
func main() { for _, arg := range os.Args[1:] { t, err := strconv.Parse - Float(arg, 64) if err != nil { fmt.Fprintf(os.Stderr, "cf: %v\n", err) os.Exit(1) } f := tempconv.Fahrenheit(t) c := tempconv.Celsius(t) fmt.Printf("%s = %s, %s = %s\n", f, tempconv.FToC(f), c, tempconv.CToF(c)) } }