1  /*[clinic input]
       2  preserve
       3  [clinic start generated code]*/
       4  
       5  PyDoc_STRVAR(enum_new__doc__,
       6  "enumerate(iterable, start=0)\n"
       7  "--\n"
       8  "\n"
       9  "Return an enumerate object.\n"
      10  "\n"
      11  "  iterable\n"
      12  "    an object supporting iteration\n"
      13  "\n"
      14  "The enumerate object yields pairs containing a count (from start, which\n"
      15  "defaults to zero) and a value yielded by the iterable argument.\n"
      16  "\n"
      17  "enumerate is useful for obtaining an indexed list:\n"
      18  "    (0, seq[0]), (1, seq[1]), (2, seq[2]), ...");
      19  
      20  static PyObject *
      21  enum_new_impl(PyTypeObject *type, PyObject *iterable, PyObject *start);
      22  
      23  static PyObject *
      24  enum_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
      25  {
      26      PyObject *return_value = NULL;
      27      static const char * const _keywords[] = {"iterable", "start", NULL};
      28      static _PyArg_Parser _parser = {NULL, _keywords, "enumerate", 0};
      29      PyObject *argsbuf[2];
      30      PyObject * const *fastargs;
      31      Py_ssize_t nargs = PyTuple_GET_SIZE(args);
      32      Py_ssize_t noptargs = nargs + (kwargs ? PyDict_GET_SIZE(kwargs) : 0) - 1;
      33      PyObject *iterable;
      34      PyObject *start = 0;
      35  
      36      fastargs = _PyArg_UnpackKeywords(_PyTuple_CAST(args)->ob_item, nargs, kwargs, NULL, &_parser, 1, 2, 0, argsbuf);
      37      if (!fastargs) {
      38          goto exit;
      39      }
      40      iterable = fastargs[0];
      41      if (!noptargs) {
      42          goto skip_optional_pos;
      43      }
      44      start = fastargs[1];
      45  skip_optional_pos:
      46      return_value = enum_new_impl(type, iterable, start);
      47  
      48  exit:
      49      return return_value;
      50  }
      51  
      52  PyDoc_STRVAR(reversed_new__doc__,
      53  "reversed(sequence, /)\n"
      54  "--\n"
      55  "\n"
      56  "Return a reverse iterator over the values of the given sequence.");
      57  
      58  static PyObject *
      59  reversed_new_impl(PyTypeObject *type, PyObject *seq);
      60  
      61  static PyObject *
      62  reversed_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
      63  {
      64      PyObject *return_value = NULL;
      65      PyObject *seq;
      66  
      67      if ((type == &PyReversed_Type ||
      68           type->tp_init == PyReversed_Type.tp_init) &&
      69          !_PyArg_NoKeywords("reversed", kwargs)) {
      70          goto exit;
      71      }
      72      if (!_PyArg_CheckPositional("reversed", PyTuple_GET_SIZE(args), 1, 1)) {
      73          goto exit;
      74      }
      75      seq = PyTuple_GET_ITEM(args, 0);
      76      return_value = reversed_new_impl(type, seq);
      77  
      78  exit:
      79      return return_value;
      80  }
      81  /*[clinic end generated code: output=a3937b6b33499560 input=a9049054013a1b77]*/