},
		{
			name:          "int64 max positive value",
			in:            hex("1b7fffffffffffffff"), // 9223372036854775807
			want:          int64(9223372036854775807),
			assertOnError: assertNilError,
		},
		{
			name: "max positive integer value supported by cbor: 2^64 - 1",
			in:   hex("1bffffffffffffffff"), // 18446744073709551615

		q = (int64(0x7fffffffffffffff) - int64(i) - (q & 1)) / -int64(i)
	}
	Output = int(q)
}

func BenchmarkDiv64NegDividend(b *testing.B) {
	q := int64(-1)
	for i := 1; i <= b.N; i++ {
		q = -(int64(0x7fffffffffffffff) - int64(i) - (q & 1)) / int64(i)
	}
	Output = int(q)
}

func BenchmarkDiv64NegBoth(b *testing.B) {
	q := int64(-1)
	for i := 1; i <= b.N; i++ {

TEXT runtime·wasmTruncS(SB), NOSPLIT, $0-0
	Get R0
	Get R0
	F64Ne // NaN
	If
		I64Const $0x8000000000000000
		Return
	End

	Get R0
	F64Const $0x7ffffffffffffc00p0 // Maximum truncated representation of 0x7fffffffffffffff
	F64Gt
	If
		I64Const $0x8000000000000000
		Return
	End

	Get R0
	F64Const $-0x7ffffffffffffc00p0 // Minimum truncated representation of -0x8000000000000000
	F64Lt
	If

			isDir:   true,
		},
		"drwxr-xr-x 0 1970-01-01 12:00:00 home/gopher/",
		"d home/gopher/",
	},
	{
		formatTest{
			name:    "big",
			size:    0x7fffffffffffffff,
			mode:    ModeIrregular | 0o644,
			modTime: time.Date(1970, time.January, 1, 12, 0, 0, 0, time.UTC),
			isDir:   false,
		},
		"?rw-r--r-- 9223372036854775807 1970-01-01 12:00:00 big",
		"? big",
	},
	{

var szs = []sizedTestData{
	sizedTestData{name: "uint64", sn: "64", u: []uint64{0, 1, 4294967296, 0xffffFFFFffffFFFF}},
	sizedTestData{name: "int64", sn: "64", i: []int64{-0x8000000000000000, -0x7FFFFFFFFFFFFFFF,
		-4294967296, -1, 0, 1, 4294967296, 0x7FFFFFFFFFFFFFFE, 0x7FFFFFFFFFFFFFFF}},

	sizedTestData{name: "uint32", sn: "32", u: []uint64{0, 1, 4294967295}},
	sizedTestData{name: "int32", sn: "32", i: []int64{-0x80000000, -0x7FFFFFFF, -1, 0,
		1, 0x7FFFFFFF}},

		},
		{
			example: hex("1a000f4240"),
			decoded: int64(1000000),
		},
		{
			example: hex("1b000000e8d4a51000"),
			decoded: int64(1000000000000),
		},
		{
			example: hex("1bffffffffffffffff"),
			reject:  "2^64-1 overflows int64 and falling back to float64 (as with JSON) loses distinction between float and integer",
		},
		{
			example: hex("c249010000000000000000"),

	{name: "uint64", sn: "64", u: []uint64{3, 5, 7, 9, 10, 11, 13, 19, 21, 25, 27, 37, 41, 45, 73, 81}, oponly: "mul"},

	{name: "int64", sn: "64", i: []int64{-0x8000000000000000, -0x7FFFFFFFFFFFFFFF,
		-4294967296, -1, 0, 1, 4294967296, 0x7FFFFFFFFFFFFFFE, 0x7FFFFFFFFFFFFFFF}},
	{name: "int64", sn: "64", i: []int64{-9, -5, -3, 3, 5, 7, 9, 10, 11, 13, 19, 21, 25, 27, 37, 41, 45, 73, 81}, oponly: "mul"},

	{1 << 15, 2, "1000000000000000"},

	{-8, 8, "-10"},
	{057635436545, 8, "57635436545"},
	{1 << 24, 8, "100000000"},

	{16, 16, "10"},
	{-0x123456789abcdef, 16, "-123456789abcdef"},
	{1<<63 - 1, 16, "7fffffffffffffff"},
	{1<<63 - 1, 2, "111111111111111111111111111111111111111111111111111111111111111"},
	{-1 << 63, 2, "-1000000000000000000000000000000000000000000000000000000000000000"},

	{16, 17, "g"},
	{25, 25, "10"},

}

var szs []szD = []szD{
	szD{name: "uint64", sn: "64", u: []uint64{0, 1, 4294967296, 0xffffFFFFffffFFFF}},
	szD{name: "int64", sn: "64", i: []int64{-0x8000000000000000, -0x7FFFFFFFFFFFFFFF,
		-4294967296, -1, 0, 1, 4294967296, 0x7FFFFFFFFFFFFFFE, 0x7FFFFFFFFFFFFFFF}},

	szD{name: "uint32", sn: "32", u: []uint64{0, 1, 4294967295}},
	szD{name: "int32", sn: "32", i: []int64{-0x80000000, -0x7FFFFFFF, -1, 0,
		1, 0x7FFFFFFF}},

    } else if (frameLength == PAYLOAD_LONG.toLong()) {
      frameLength = source.readLong()
      if (frameLength < 0L) {
        throw ProtocolException(
          "Frame length 0x${frameLength.toHexString()} > 0x7FFFFFFFFFFFFFFF",
        )
      }
    }

    if (isControlFrame && frameLength > PAYLOAD_BYTE_MAX) {
      throw ProtocolException("Control frame must be less than ${PAYLOAD_BYTE_MAX}B.")
    }