painkiller.go

package main

import "fmt"

//go:generate stringer -type=Pill

type Pill int

const (
	Placebo Pill = iota
	Aspirin
	Ibuprofen
	Paracetamol
	Acetaminophen = Paracetamol
)

func main() {
	fmt.Printf("For headaches, take %v\n", Ibuprofen)
}