func syntaxError(fn, str string) *NumError {
	return &NumError{fn, stringslite.Clone(str), ErrSyntax}
}

func rangeError(fn, str string) *NumError {
	return &NumError{fn, stringslite.Clone(str), ErrRange}
}

func baseError(fn, str string, base int) *NumError {
	return &NumError{fn, stringslite.Clone(str), errors.New("invalid base " + Itoa(base))}
}

const fnParseComplex = "ParseComplex"

// convErr splits an error returned by parseFloatPrefix
// into a syntax or range error for ParseComplex.
func convErr(err error, s string) (syntax, range_ error) {
	if x, ok := err.(*NumError); ok {
		x.Func = fnParseComplex
		x.Num = stringslite.Clone(s)
		if x.Err == ErrRange {
			return nil, x
		}
	}
	return err, nil
}

// ParseComplex converts the string s to a complex number

// errRange is returned by Set if a flag's value is out of range.
// It then gets wrapped through failf to provide more information.
var errRange = errors.New("value out of range")

func numError(err error) error {
	ne, ok := err.(*strconv.NumError)
	if !ok {
		return err
	}
	if ne.Err == strconv.ErrSyntax {
		return errParse
	}
	if ne.Err == strconv.ErrRange {
		return errRange
	}
	return err
}

			return nil
		}
	}

	return fmt.Errorf("unsupported Scan, storing driver.Value type %T into type %T", src, dest)
}

func strconvErr(err error) error {
	if ne, ok := err.(*strconv.NumError); ok {
		return ne.Err
	}
	return err
}

func asString(src any) string {
	switch v := src.(type) {
	case string:
		return v
	case []byte:
		return string(v)
	}

		f, err := strconv.ParseFloat(str[:p], n)
		if err != nil {
			// Put full string into error.
			if e, ok := err.(*strconv.NumError); ok {
				e.Num = str
			}
			s.error(err)
		}
		m, err := strconv.Atoi(str[p+1:])
		if err != nil {
			// Put full string into error.
			if e, ok := err.(*strconv.NumError); ok {
				e.Num = str
			}
			s.error(err)
		}
		return math.Ldexp(f, m)
	}

		_ = fs.Int64("int64", 0, "")
		_ = fs.Uint("uint", 0, "")
		_ = fs.Uint64("uint64", 0, "")
		_ = fs.Float64("float64", 0, "")
		// Strings cannot give errors, and bools and durations do not return strconv.NumError.
		err := fs.Parse([]string{arg})
		if err == nil {
			t.Errorf("Parse(%q)=%v; expected range error", arg, err)
			continue
		}

		var x Int
		_, ok := x.SetString(s, 0)
		if !ok {
			t.Errorf("SetString(%s, 0) failed", s)
			continue
		}

		want, err := strconv.ParseInt(s, 0, 64)
		if err != nil {
			if err.(*strconv.NumError).Err == strconv.ErrRange {
				if x.IsInt64() {
					t.Errorf("IsInt64(%s) succeeded unexpectedly", s)
				}
			} else {
				t.Errorf("ParseInt(%s) failed", s)
			}
			continue
		}

		{"FormatInt", Func, 0},
		{"FormatUint", Func, 0},
		{"IntSize", Const, 0},
		{"IsGraphic", Func, 6},
		{"IsPrint", Func, 0},
		{"Itoa", Func, 0},
		{"NumError", Type, 0},
		{"NumError.Err", Field, 0},
		{"NumError.Func", Field, 0},
		{"NumError.Num", Field, 0},
		{"ParseBool", Func, 0},
		{"ParseComplex", Func, 15},
		{"ParseFloat", Func, 0},
		{"ParseInt", Func, 0},
		{"ParseUint", Func, 0},

		if n1 < n || n1 > maxVal {
			// n+v overflows
			n = 1<<64 - 1
			err = strconv.ErrRange
			goto Error
		}
		n = n1
	}

	return n, nil

Error:
	return n, &strconv.NumError{Func: "ParseUint", Num: string(s0), Err: err}
}

// Return the first number n such that n*base >= 1<<64.
func http2cutoff64(base int) uint64 {
	if base < 2 {
		return 0
	}