func overlayDir(dstRoot, srcRoot string) error {
	dstRoot = filepath.Clean(dstRoot)
	if err := os.MkdirAll(dstRoot, 0777); err != nil {
		return err
	}

	srcRoot, err := filepath.Abs(srcRoot)
	if err != nil {
		return err
	}

	return filepath.WalkDir(srcRoot, func(srcPath string, entry fs.DirEntry, err error) error {
		if err != nil || srcPath == srcRoot {
			return err
		}

    private static final Grouper<String> GROUPER = new Grouper<String>() {
        @Override
        public String determineGroup(String s) {
            return String.valueOf(Math.abs(s.hashCode()) % 100);
        }

        @Override
        public int getNumberOfGroupingDirs() {
            return NUMBER_OF_GROUPING_DIRS;
        }
    };

    // TODO(jlevy): For optimal performance, use a binary search when
    // targets.size() < size() / log(size())
    // TODO(kevinb): see if we can share code with OrderedIterator after it
    // graduates from labs.
    if (targets instanceof Multiset) {
      targets = ((Multiset<?>) targets).elementSet();
    }
    if (!SortedIterables.hasSameComparator(comparator(), targets) || (targets.size() <= 1)) {

				v.t.Errorf(errorMessage.String())
			}
		}
	}
	return v
}

func TestArgumentsPositions(t *testing.T) {
	testenv.MustHaveCGO(t)
	testenv.MustHaveExec(t)

	testdata, err := filepath.Abs("testdata")
	if err != nil {
		t.Fatal(err)
	}

	tmpPath := t.TempDir()

	dir := filepath.Join(tmpPath, "src", "testpositions")
	if err := os.MkdirAll(dir, 0755); err != nil {
		t.Fatal(err)
	}

// cmd/7l/list.c and cmd/7l/sub.c from Vita Nuova.
// https://bitbucket.org/plan9-from-bell-labs/9-cc/src/master/
//
// 	Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
// 	Portions Copyright © 1995-1997 C H Forsyth (******@****.***)
// 	Portions Copyright © 1997-1999 Vita Nuova Limited
// 	Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
// 	Portions Copyright © 2004,2006 Bruce Ellis

  AbstractTensorHandle* f_outputs[1];

  // Numerical Grad Check
  for (int i = 0; i < num_elems; i++) {
    // Get relative epsilon value
    float epsilon = theta_data[i] == 0 ? 1e-4 : std::abs(theta_data[i] * 1e-4);
    AbstractTensorHandlePtr two_eps;
    {
      AbstractTensorHandle* two_eps_raw = nullptr;
      TF_RETURN_IF_ERROR(TestScalarTensorHandle<float, TF_FLOAT>(

#define TAC_REGISTER_GPU_OP(Op, Create)                                    \
  TargetHardwareOpRegistration<GpuHardware, Op> Op##_GpuHardware_hardware( \
      Create);

// Currently used for these ops:
// tfl.Abs / tfl.Average_pool_2d / tfl.Cos / tfl.div / tfl.exp / tfl.hardswish /
// tfl.log / tfl.logistic / tfl.max_pool_2d / tfl.mirror_pad / tfl.maximum /
// tfl.custom / tfl.mean / tfl.minimum / tfl.pad / tfl.pow / tfl.prelu /

                String data = "";
                // Flushing data split across previous and current appending
                if (start < 0 && pos >= 0) {
                    data = seenFromEol.string(Math.abs(start)) + text.substring(0, pos);
                // Flushing data coming only from current appending
                } else if (start >= 0) {
                    data = text.substring(start, pos);
                }

	}
	s, c := math.Sincos(imag(x))
	sh, ch := sinhcosh(real(x))
	return complex(c*ch, s*sh)
}

// calculate sinh and cosh.
func sinhcosh(x float64) (sh, ch float64) {
	if math.Abs(x) <= 0.5 {
		return math.Sinh(x), math.Cosh(x)
	}
	e := math.Exp(x)
	ei := 0.5 / e
	e *= 0.5
	return e - ei, e + ei

			Comment: "hello , world",
			Where:   "age > 10",
			Option:  "WITH PARSER parser_name",
			Fields: []schema.IndexOption{{Field: &schema.Field{Name: "Name6"}}, {
				Field:      &schema.Field{Name: "Age"},
				Expression: "ABS(age)",
			}},
		},
		"idx_id": {
			Name:   "idx_id",
			Fields: []schema.IndexOption{{Field: &schema.Field{Name: "MemberNumber"}}, {Field: &schema.Field{Name: "OID", UniqueIndex: "idx_oid"}}},
		},