Binary iota accu

binary_iota_accu.go

package main

type Letter uint16

const (
	A Letter = 1 << iota
	B
	C
	D
    All = (D << 1) - A
)

func main() {
	fmt.Printf("01. %08b, %[1]d\n", A)   // 01. 00000001, 1
	fmt.Printf("02. %08b, %[1]d\n", B)   // 02. 00000010, 2
	fmt.Printf("03. %08b, %[1]d\n", C)   // 03. 00000100, 4
	fmt.Printf("04. %08b, %[1]d\n", D)   // 04. 00001000, 8
	fmt.Printf("05. %08b, %[1]d\n", All) // 05. 00001111, 15
}