return -int64(cutoff), rangeError(fnParseInt, s0)
	}
	n := int64(un)
	if neg {
		n = -n
	}
	return n, nil
}

// Atoi is equivalent to ParseInt(s, 10, 0), converted to type int.
func Atoi(s string) (int, error) {
	const fnAtoi = "Atoi"

	sLen := len(s)
	if intSize == 32 && (0 < sLen && sLen < 10) ||
		intSize == 64 && (0 < sLen && sLen < 19) {

	errCode = ErrNone

	if values.Get("max-parts") != "" {
		if maxParts, err = strconv.Atoi(values.Get("max-parts")); err != nil {
			errCode = ErrInvalidMaxParts
			return
		}
	} else {
		maxParts = maxPartsList
	}

	if values.Get("part-number-marker") != "" {
		if partNumberMarker, err = strconv.Atoi(values.Get("part-number-marker")); err != nil {
			errCode = ErrInvalidPartNumberMarker
			return
		}

		return
	}

	var parseError error
	atoi := func(s string) int {
		x, err := strconv.Atoi(s)
		if err != nil && parseError == nil {
			parseError = err
		}
		return x
	}
	var major, minor, patch int
	major = atoi(string(matches[1]))
	if len(matches[2]) > 0 {
		minor = atoi(string(matches[2][1:]))
	}
	if len(matches[3]) > 0 {
		patch = atoi(string(matches[3][1:]))
	}
	if parseError != nil {

	}

	if err = config.CheckValidKeys(config.ILMSubSys, kvs, DefaultKVS); err != nil {
		return cfg, err
	}

	tw, err := strconv.Atoi(env.Get(EnvILMTransitionWorkers, kvs.GetWithDefault(transitionWorkers, DefaultKVS)))
	if err != nil {
		return cfg, err
	}

	ew, err := strconv.Atoi(env.Get(EnvILMExpirationWorkers, kvs.GetWithDefault(expirationWorkers, DefaultKVS)))
	if err != nil {
		return cfg, err
	}

		t.Run(vector.Name, func(t *testing.T) {
			setup := parseVectorSetup(vector.Setup)

			kemID, err := strconv.Atoi(setup["kem_id"])
			if err != nil {
				t.Fatal(err)
			}
			if _, ok := SupportedKEMs[uint16(kemID)]; !ok {
				t.Skip("unsupported KEM")
			}
			kdfID, err := strconv.Atoi(setup["kdf_id"])
			if err != nil {
				t.Fatal(err)
			}
			if _, ok := SupportedKDFs[uint16(kdfID)]; !ok {

		return func(t *testing.T) {
			t.Helper()
			if allocs := testing.AllocsPerRun(runsPerTest, f); allocs != 0 {
				t.Errorf("got %v allocs, want 0 allocs", allocs)
			}
		}
	}

	t.Run("Atoi", checkNoAllocs(func() {
		Sink.Int, Sink.Error = Atoi(string(bytes.Number))
	}))
	t.Run("ParseBool", checkNoAllocs(func() {
		Sink.Bool, Sink.Error = ParseBool(string(bytes.Bool))
	}))
	t.Run("ParseInt", checkNoAllocs(func() {

			rel = rel[:i]
			break
		}
	}

	next := func() (int, bool) {
		for i := 0; i < len(rel); i++ {
			if rel[i] == '.' {
				ver, err := strconv.Atoi(rel[:i])
				rel = rel[i+1:]
				return ver, err == nil
			}
		}
		ver, err := strconv.Atoi(rel)
		rel = ""
		return ver, err == nil
	}
	if major, ok = next(); !ok || rel == "" {
		return
	}
	if minor, ok = next(); !ok || rel == "" {
		return
	}

			return UTC, nil
		}
		return nil, errBadData
	}

	var zones [2]zone

	// standard timezone offset
	o, err := atoi(f[1])
	if err != nil {
		return nil, errBadData
	}
	zones[0] = zone{name: f[0], offset: o, isDST: false}

	// alternate timezone offset
	o, err = atoi(f[3])
	if err != nil {
		return nil, errBadData
	}
	zones[1] = zone{name: f[2], offset: o, isDST: true}

	// transition time pairs

	}
	cfg.IOCount, err = strconv.Atoi(env.Get(EnvIOCount, kvs.GetWithDefault(IOCount, DefaultKVS)))
	if err != nil {
		return cfg, fmt.Errorf("'heal:max_io' value invalid: %w", err)
	}
	if ws := env.Get(EnvDriveWorkers, kvs.GetWithDefault(DriveWorkers, DefaultKVS)); ws != "" {
		w, err := strconv.Atoi(ws)
		if err != nil {

	"io"
	"os"
	"strconv"
)

func listGroupsFromReader(u *User, r io.Reader) ([]string, error) {
	if u.Username == "" {
		return nil, errors.New("user: list groups: empty username")
	}
	primaryGid, err := strconv.Atoi(u.Gid)
	if err != nil {
		return nil, fmt.Errorf("user: list groups for %s: invalid gid %q", u.Username, u.Gid)
	}

	userCommas := []byte("," + u.Username + ",")  // ,john,