Parse builtin types
Convert options to correct type early.
drill/flag_types.go
package drill
import (
"flag"
"time"
)
func main() {
var (
n = flag.Int("i", 7, "integer")
s = flag.String("s", "hi", "string")
b = flag.Bool("b", false, "bool")
d = flag.Duration("d", time.Second, "time.Duration")
)
flag.Parse()
println(*n, *s, *b, *d)
}
$ go run flag_types.go
7 hi false 1000000000