}

	*(*slice)(unsafe.Pointer(&b)) = slice{p, size, int(mem / 4)}
	return
}

// used by cmd/cgo
func gobytes(p *byte, n int) (b []byte) {
	if n == 0 {
		return make([]byte, 0)
	}

	if n < 0 || uintptr(n) > maxAlloc {
		panic(errorString("gobytes: length out of range"))
	}

	bp := mallocgc(uintptr(n), nil, false)
	memmove(bp, unsafe.Pointer(p), uintptr(n))

		info.Name = file
		info.Size = size
	}

	return symdata, size, nil
}

var slicedataGen int

func slicedata(pos src.XPos, s string) *obj.LSym {
	slicedataGen++
	symname := fmt.Sprintf(".gobytes.%d", slicedataGen)
	lsym := types.LocalPkg.Lookup(symname).LinksymABI(obj.ABI0)
	off := dstringdata(lsym, 0, s, pos, "slice")
	objw.Global(lsym, int32(off), obj.NOPTR|obj.LOCAL)

	return lsym
}

	Name      string
	Got, Want interface{}
}

var testPairs = []testPair{
	{"GoString", C.GoString(C.greeting), greeting},
	{"GoStringN", C.GoStringN(C.greeting, 5), greeting[:5]},
	{"GoBytes", C.GoBytes(unsafe.Pointer(C.greeting), 5), []byte(greeting[:5])},
}

func testHelpers(t *testing.T) {
	for _, pair := range testPairs {
		if !reflect.DeepEqual(pair.Got, pair.Want) {

	// C string to Go string
	func C.GoString(*C.char) string

	// C data with explicit length to Go string
	func C.GoStringN(*C.char, C.int) string

	// C data with explicit length to Go []byte
	func C.GoBytes(unsafe.Pointer, C.int) []byte

As a special case, C.malloc does not call the C library malloc directly
but instead calls a Go helper function that wraps the C library malloc

	return
}

// ToTimestamp returns the timestamp value if present.
func (v Value) ToTimestamp() (t time.Time, ok bool) {
	t, ok = v.value.(time.Time)
	return
}

// ToBytes returns the value if byte-slice.
func (v Value) ToBytes() (val []byte, ok bool) {
	val, ok = v.value.([]byte)
	return
}

// ToArray returns the value if it is a slice of values.
func (v Value) ToArray() (val []Value, ok bool) {

            DefaultModuleIdentifier.newId('group3', 'name3'), constraint('1.0'), factory.of(attr, "val1"), [])

        when:
        byte[] result1 = toBytes(selector1, serializer)
        byte[] result2 = toBytes(selector2, serializer)
        byte[] result3 = toBytes(selector3, serializer)

        then:
        result2.length == result1.length // different attributes
        result3.length < result1.length // already seen

	t.Parallel()

	// needs to be large to force allocations so we pick a random value between [1024, 2048]
	size := utilrand.IntnRange(1024, 2048+1)

	t.Run("toBytes semantics", func(t *testing.T) {
		t.Parallel()

		s := utilrand.String(size)
		b := toBytes(s)
		if len(b) != size {
			t.Errorf("unexpected length: %d", len(b))
		}
		if cap(b) != size {
			t.Errorf("unexpected capacity: %d", cap(b))
		}

		b.AddUint16LengthPrefixed(func(b *cryptobyte.Builder) {
			b.AddBytes(toBytes(k))
		})
		b.AddUint16LengthPrefixed(func(b *cryptobyte.Builder) {
			b.AddBytes(annotations[k])
		})
	}

	return b.Bytes()
}

// toBytes performs unholy acts to avoid allocations
func toBytes(s string) []byte {
	// unsafe.StringData is unspecified for the empty string, so we provide a strict interpretation

	Unused1    uint8
	Mtu        uint32
	Metric     uint32
	Baudrate   uint32
	Ipackets   uint32
	Ierrors    uint32
	Opackets   uint32
	Oerrors    uint32
	Collisions uint32
	Ibytes     uint32
	Obytes     uint32
	Imcasts    uint32
	Omcasts    uint32
	Iqdrops    uint32
	Noproto    uint32
	Recvtiming uint32
	Xmittiming uint32
	Lastchange Timeval32
	Unused2    uint32
	Hwassist   uint32

	Unused1    uint8
	Mtu        uint32
	Metric     uint32
	Baudrate   uint32
	Ipackets   uint32
	Ierrors    uint32
	Opackets   uint32
	Oerrors    uint32
	Collisions uint32
	Ibytes     uint32
	Obytes     uint32
	Imcasts    uint32
	Omcasts    uint32
	Iqdrops    uint32
	Noproto    uint32
	Recvtiming uint32
	Xmittiming uint32
	Lastchange Timeval32
	Unused2    uint32
	Hwassist   uint32