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 *
enum_new(PyTypeObject * type,PyObject * args,PyObject * kwargs)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 *
reversed_new(PyTypeObject * type,PyObject * args,PyObject * kwargs)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         !_PyArg_NoKeywords("reversed", kwargs)) {
69         goto exit;
70     }
71     if (!_PyArg_CheckPositional("reversed", PyTuple_GET_SIZE(args), 1, 1)) {
72         goto exit;
73     }
74     seq = PyTuple_GET_ITEM(args, 0);
75     return_value = reversed_new_impl(type, seq);
76 
77 exit:
78     return return_value;
79 }
80 /*[clinic end generated code: output=e18c3fefcf914ec7 input=a9049054013a1b77]*/
81