{"0200000000000000000000", 0, 1 << 61, nil},
	{"0b", 0, 0, ErrSyntax},
	{"0B", 0, 0, ErrSyntax},
	{"0b101", 0, 5, nil},
	{"0B101", 0, 5, nil},
	{"0o", 0, 0, ErrSyntax},
	{"0O", 0, 0, ErrSyntax},
	{"0o377", 0, 255, nil},
	{"0O377", 0, 255, nil},

	// underscores allowed with base == 0 only
	{"1_2_3_4_5", 0, 12345, nil}, // base 0 => 10
	{"_12345", 0, 0, ErrSyntax},
	{"1__2345", 0, 0, ErrSyntax},
	{"12345_", 0, 0, ErrSyntax},

	{"0x_1_0\n", &intVal, 0x10},
	{"-0x10\n", &intVal, -0x10},
	{"0377\n", &intVal, 0377},
	{"0_3_7_7\n", &intVal, 0377},
	{"0o377\n", &intVal, 0377},
	{"0o_3_7_7\n", &intVal, 0377},
	{"-0377\n", &intVal, -0377},
	{"-0o377\n", &intVal, -0377},
	{"0\n", &uintVal, uint(0)},
	{"000\n", &uintVal, uint(0)},
	{"0x10\n", &uintVal, uint(0x10)},
	{"0377\n", &uintVal, uint(0377)},
	{"22\n", &int8Val, int8(22)},

		{`'\y'`, "unknown escape", 0, 2},
		{`'\x0'`, "invalid character '\\'' in hexadecimal escape", 0, 4},
		{`'\00'`, "invalid character '\\'' in octal escape", 0, 4},
		{`'\377' /*`, "comment not terminated", 0, 7}, // valid octal escape
		{`'\378`, "invalid character '8' in octal escape", 0, 4},
		{`'\400'`, "octal escape value 256 > 255", 0, 5},
		{`'xx`, "rune literal not terminated", 0, 0},

func installExe(t *testing.T, dstPath string) {
	src, err := os.Open(exePath(t))
	if err != nil {
		t.Fatal(err)
	}
	defer src.Close()

	dst, err := os.OpenFile(dstPath, os.O_CREATE|os.O_EXCL|os.O_WRONLY, 0o777)
	if err != nil {
		t.Fatal(err)
	}
	defer func() {
		if err := dst.Close(); err != nil {
			t.Fatal(err)
		}
	}()

	_, err = io.Copy(dst, src)
	if err != nil {
		t.Fatal(err)
	}
}

			pathJoin(diskPath, minioMetaTmpBucket),
			tmpOld,
			osErrToFileErr(err)))
	}

	if err := mkdirAll(pathJoin(diskPath, minioMetaTmpDeletedBucket), 0o777, diskPath); err != nil {
		storageLogIf(GlobalContext, fmt.Errorf("unable to create (%s) %w, drive may be faulty, please investigate",
			pathJoin(diskPath, minioMetaTmpBucket),
			err))
	}

	0x1f2a,
	0x2102,
	0x2c00,
	0x2c10,
	0x2c20,
	0xa650,
	0xa722,
	0xff3a,
	0x10400,
	0x1d400,
	0x1d7ca,
}

var notupperTest = []rune{
	0x40,
	0x5b,
	0x61,
	0x185,
	0x1b0,
	0x377,
	0x387,
	0x2150,
	0xab7d,
	0xffff,
	0x10000,
}

var letterTest = []rune{
	0x41,
	0x61,
	0xaa,
	0xba,
	0xc8,
	0xdb,
	0xf9,
	0x2ec,
	0x535,
	0x620,
	0x6e6,
	0x93d,