test.in, test.base, s, test.out)
			}
			x := AppendUint(nil, uint64(test.in), test.base)
			if string(x) != test.out {
				t.Errorf("AppendUint(%q, %v, %v) = %q want %v",
					"abc", uint64(test.in), test.base, x, test.out)
			}
		}

		if test.base == 10 && int64(int(test.in)) == test.in {
			s := Itoa(int(test.in))
			if s != test.out {
				t.Errorf("Itoa(%v) = %v want %v",

		if valEnd {
			if start == 0 {
				if val < 80 {
					b.Write(strconv.AppendUint(numBuf, val/40, 10))
					b.WriteByte('.')
					b.Write(strconv.AppendUint(numBuf, val%40, 10))
				} else {
					b.WriteString("2.")
					b.Write(strconv.AppendUint(numBuf, val-80, 10))
				}
			} else {
				b.Write(strconv.AppendUint(numBuf, val, 10))
			}
			val = 0
			start = i + 1
		}
	}

	return dst
}

// AppendUint appends the string form of the unsigned integer i,
// as generated by [FormatUint], to dst and returns the extended buffer.
func AppendUint(dst []byte, i uint64, base int) []byte {
	if fastSmalls && i < nSmalls && base == 10 {
		return append(dst, small(int(i))...)
	}
	dst, _ = formatBits(dst, i, base, false, true)
	return dst
}

//
//	s := strconv.FormatBool(true)
//	s := strconv.FormatFloat(3.1415, 'E', -1, 64)
//	s := strconv.FormatInt(-42, 16)
//	s := strconv.FormatUint(42, 16)
//
// [AppendBool], [AppendFloat], [AppendInt], and [AppendUint] are similar but
// append the formatted value to a destination slice.
//
// # String Conversions
//
// [Quote] and [QuoteToASCII] convert strings to quoted Go string literals.

		buf.WriteString(v.String())
	case slog.KindInt64:
		*buf = strconv.AppendInt(*buf, v.Int64(), 10)
	case slog.KindUint64:
		*buf = strconv.AppendUint(*buf, v.Uint64(), 10)
	case slog.KindFloat64:
		*buf = strconv.AppendFloat(*buf, v.Float64(), 'g', -1, 64)
	case slog.KindBool:
		*buf = strconv.AppendBool(*buf, v.Bool())
	case slog.KindDuration:
		*buf = strconv.AppendInt(*buf, v.Duration().Nanoseconds(), 10)
	case slog.KindTime:

	// Output:
	// quote (ascii):"\"Fran & Freddie's Diner\""
}

func ExampleAppendUint() {
	b10 := []byte("uint (base 10):")
	b10 = strconv.AppendUint(b10, 42, 10)
	fmt.Println(string(b10))

	b16 := []byte("uint (base 16):")
	b16 = strconv.AppendUint(b16, 42, 16)
	fmt.Println(string(b16))

	// Output:
	// uint (base 10):42
	// uint (base 16):2a
}

func ExampleAtoi() {
	v := "10"

}

func appendJSONValue(s *handleState, v Value) error {
	switch v.Kind() {
	case KindString:
		s.appendString(v.str())
	case KindInt64:
		*s.buf = strconv.AppendInt(*s.buf, v.Int64(), 10)
	case KindUint64:
		*s.buf = strconv.AppendUint(*s.buf, v.Uint64(), 10)
	case KindFloat64:
		// json.Marshal is funny about floats; it doesn't
		// always match strconv.AppendFloat. So just call it.

const digits = "0123456789abcdef"

// appendDecimal appends the decimal string representation of x to b.
func appendDecimal(b []byte, x uint8) []byte {
	// Using this function rather than strconv.AppendUint makes IPv4
	// string building 2x faster.

	if x >= 100 {
		b = append(b, digits[x/100])
	}
	if x >= 10 {
		b = append(b, digits[x/10%10])
	}
	return append(b, digits[x%10])
}

func (v Value) append(dst []byte) []byte {
	switch v.Kind() {
	case KindString:
		return append(dst, v.str()...)
	case KindInt64:
		return strconv.AppendInt(dst, int64(v.num), 10)
	case KindUint64:
		return strconv.AppendUint(dst, v.num, 10)
	case KindFloat64:
		return strconv.AppendFloat(dst, v.float(), 'g', -1, 64)
	case KindBool:
		return strconv.AppendBool(dst, v.bool())
	case KindDuration:

	// map header, size 3
	// string "PartNumber"
	o = append(o, 0x83, 0xaa, 0x50, 0x61, 0x72, 0x74, 0x4e, 0x75, 0x6d, 0x62, 0x65, 0x72)
	o = msgp.AppendInt(o, z.PartNumber)
	// string "Algorithm"
	o = append(o, 0xa9, 0x41, 0x6c, 0x67, 0x6f, 0x72, 0x69, 0x74, 0x68, 0x6d)
	o = msgp.AppendUint(o, uint(z.Algorithm))
	// string "Hash"
	o = append(o, 0xa4, 0x48, 0x61, 0x73, 0x68)
	o = msgp.AppendBytes(o, z.Hash)
	return
}