l-vitaly

type Permissions int

const (
    Read Permissions = 1 << iota // 1 << 0 = 00000001
    Write                        // 1 << 1 = 00000010
    Create                       // 1 << 2 = 00000100
    Delete                       // 1 << 3 = 00001000
)

l-vitaly

type CarType int
const (
    BMW CarType = iota // 0
    Audi               // 1
    Mercedes           // 2
    _
    _
    XRay               // 5
)

l-vitaly

func FormatMyValue(i int) string {
    return fmt.Sprintf(“there are %d my value”, i)
}

func main() {
    n := TypicalPhlegmaticPerson
    fmt.Println(FormatMyValue(n))
}

// output:

l-vitaly

type TemperamentЕype int
const (
    TypicalSanguinePerson TemperamentЕype = iota // 0
    TypicalCholericSubject                       // 1
    TypicalPhlegmaticPerson                      // 2
    TypicalMelancholiac                          // 3
)