package main

import (
	"fmt"
)

const anetNone uint8 = 0
const (
	anetPreRel uint8 = 1 << iota
	anetUnstable
	anetExperiment

	anetBeta  = anetPreRel | anetUnstable
	anetAlpha = anetBeta | anetExperiment
)

var (
	// In Golang, a byte is exactly equivalent to a uint8.
	// Use the same value extracted in the example `extractversion.go`.
	// A value of 0x01 (1) indicates Pre-Release flag is set, with no other myFlags set.
	myFlags byte = 0x01
)

func main() {

	fmt.Printf("Flags:\t%d\t%#02x\n\n", myFlags, myFlags)
	// Prints:
	/*
		Flags:  1       0x01

	*/

	for flag, flagNm := range map[uint8]string{
		anetPreRel:     "Pre-release",
		anetUnstable:   "Unstable",
		anetExperiment: "Experimental",
		anetBeta:       "Beta release",
		anetAlpha:      "Alpha release",
	} {
		fmt.Printf(
			"Has flag '%s' (%d, %#02x):\t%v\n\n",
			flagNm, flag, flag, myFlags&flag == flag,
		)
	}
	// Prints:
	/*
		Flags:  1       0x01

		Has flag 'Pre-release' (1, 0x01):       true

		Has flag 'Unstable' (2, 0x02):  false

		Has flag 'Experimental' (4, 0x04):      false

		Has flag 'Beta release' (3, 0x03):      false

		Has flag 'Alpha release' (7, 0x07):     false
	*/
}