// but these seem to be the values agreed on by tools.
	s_IFMT   = 0xf000
	s_IFSOCK = 0xc000
	s_IFLNK  = 0xa000
	s_IFREG  = 0x8000
	s_IFBLK  = 0x6000
	s_IFDIR  = 0x4000
	s_IFCHR  = 0x2000
	s_IFIFO  = 0x1000
	s_ISUID  = 0x800
	s_ISGID  = 0x400
	s_ISVTX  = 0x200

	msdosDir      = 0x10
	msdosReadOnly = 0x01
)

	// check for omitted fields
	zb0001Len := uint32(18)
	var zb0001Mask uint32 /* 18 bits */
	_ = zb0001Mask
	if z.PartIndices == nil {
		zb0001Len--
		zb0001Mask |= 0x2000
	}
	// variable map header, size zb0001Len
	err = en.WriteMapHeader(zb0001Len)
	if err != nil {
		return
	}
	if zb0001Len == 0 {
		return
	}
	// write "ID"

	MOVD	R1, 0x8008(R2)		// MOVD		R1, 32776(R2)		// 5b204091610700f9
	MOVD	R1, 0x1006ff8(R2)	// MOVD		R1, 16805880(R2)	// 5bfc7f9161ff3ff9
	FMOVS	F1, 0x4004(R2)		// FMOVS	F1, 16388(R2)		// 5b104091610700bd
	FMOVS	F1, 0x1002ffc(R2)	// FMOVS	F1, 16789500(R2)	// 5bfc7f9161ff3fbd
	FMOVD	F1, 0x8008(R2)		// FMOVD	F1, 32776(R2)		// 5b204091610700fd
	FMOVD	F1, 0x1006ff8(R2)	// FMOVD	F1, 16805880(R2)	// 5bfc7f9161ff3ffd

    assertEquals(hashCode, hasher.hash().asLong());

    hasher = HASH_FN.newHasher();
    hasher.putBytes(new byte[] {0x01, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00});
    assertEquals(hashCode, hasher.hash().asLong());

    hasher = HASH_FN.newHasher();
    hasher.putLong(0x0000000001000101L);
    assertEquals(hashCode, hasher.hash().asLong());

    hasher = HASH_FN.newHasher();
    hasher

  private final ImmutableSet<?>[] sets = new ImmutableSet<?>[0x1000];

  private final Object[] queries = new Object[0x1000];

  @BeforeExperiment
  void setUp() {
    if (emptySetProportion + singletonSetProportion > 1.01) {
      throw new SkipThisScenarioException();
    }

    Random rng = new Random();
    for (int i = 0; i < 0x1000; i++) {
      double setSize = rng.nextDouble();

      mergeAdjacentRanges(
        listOf(
          Mapping(0x0000, 0x002c, TYPE_DISALLOWED_STD3_VALID, ByteString.EMPTY),
        ),
      ),
    ).containsExactly(
      Mapping(0x0000, 0x002c, TYPE_VALID, ByteString.EMPTY),
    )
  }

  @Test fun simplifyCombinesCanonicalEquivalent() {
    assertThat(
      mergeAdjacentRanges(
        listOf(
          Mapping(0x0000, 0x002c, TYPE_DISALLOWED_STD3_VALID, ByteString.EMPTY),

    assertEquals(hashCode, hasher.hash().asLong());

    hasher = HASH_FN.newHasher();
    hasher.putBytes(new byte[] {0x01, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00});
    assertEquals(hashCode, hasher.hash().asLong());

    hasher = HASH_FN.newHasher();
    hasher.putLong(0x0000000001000101L);
    assertEquals(hashCode, hasher.hash().asLong());

    hasher = HASH_FN.newHasher();
    hasher

    assertEquals(hashCode, hasher.hash().asLong());

    hasher = HASH_FN.newHasher();
    hasher.putBytes(new byte[] {0x01, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00});
    assertEquals(hashCode, hasher.hash().asLong());

    hasher = HASH_FN.newHasher();
    hasher.putLong(0x0000000001000101L);
    assertEquals(hashCode, hasher.hash().asLong());

    hasher = HASH_FN.newHasher();
    hasher

	"syscall"
)

var (
	// Disallow updating access times
	// Add non-block to avoid syscall to attempt to set epoll on files.
	readMode = os.O_RDONLY | 0x40000 | syscall.O_NONBLOCK // O_NOATIME

	// Write with data sync only used only for `xl.meta` writes
	writeMode = 0x1000 | syscall.O_NONBLOCK // O_DSYNC

        char c;
        for (int i = 0; i < in.length(); i++) {
            c = in.charAt(i);
            if (c == 0x9 || c == 0xA || c == 0xD || c >= 0x20 && c <= 0xD7FF || c >= 0xE000 && c <= 0xFFFD
                    || c >= 0x10000 && c <= 0x10FFFF) {
                buf.append(c);
            }
        }
        return buf.toString().trim();
    }