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/*[clinic input]
preserve
[clinic start generated code]*/
#if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
# include "pycore_gc.h" // PyGC_Head
# include "pycore_runtime.h" // _Py_ID()
#endif
PyDoc_STRVAR(enum_new__doc__,
"enumerate(iterable, start=0)\n"
"--\n"
"\n"
"Return an enumerate object.\n"
"\n"
" iterable\n"
" an object supporting iteration\n"
"\n"
"The enumerate object yields pairs containing a count (from start, which\n"
"defaults to zero) and a value yielded by the iterable argument.\n"
"\n"
"enumerate is useful for obtaining an indexed list:\n"
" (0, seq[0]), (1, seq[1]), (2, seq[2]), ...");
static PyObject *
enum_new_impl(PyTypeObject *type, PyObject *iterable, PyObject *start);
static PyObject *
enum_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
{
PyObject *return_value = NULL;
#if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
#define NUM_KEYWORDS 2
static struct {
PyGC_Head _this_is_not_used;
PyObject_VAR_HEAD
PyObject *ob_item[NUM_KEYWORDS];
} _kwtuple = {
.ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
.ob_item = { &_Py_ID(iterable), &_Py_ID(start), },
};
#undef NUM_KEYWORDS
#define KWTUPLE (&_kwtuple.ob_base.ob_base)
#else // !Py_BUILD_CORE
# define KWTUPLE NULL
#endif // !Py_BUILD_CORE
static const char * const _keywords[] = {"iterable", "start", NULL};
static _PyArg_Parser _parser = {
.keywords = _keywords,
.fname = "enumerate",
.kwtuple = KWTUPLE,
};
#undef KWTUPLE
PyObject *argsbuf[2];
PyObject * const *fastargs;
Py_ssize_t nargs = PyTuple_GET_SIZE(args);
Py_ssize_t noptargs = nargs + (kwargs ? PyDict_GET_SIZE(kwargs) : 0) - 1;
PyObject *iterable;
PyObject *start = 0;
fastargs = _PyArg_UnpackKeywords(_PyTuple_CAST(args)->ob_item, nargs, kwargs, NULL, &_parser, 1, 2, 0, argsbuf);
if (!fastargs) {
goto exit;
}
iterable = fastargs[0];
if (!noptargs) {
goto skip_optional_pos;
}
start = fastargs[1];
skip_optional_pos:
return_value = enum_new_impl(type, iterable, start);
exit:
return return_value;
}
PyDoc_STRVAR(reversed_new__doc__,
"reversed(sequence, /)\n"
"--\n"
"\n"
"Return a reverse iterator over the values of the given sequence.");
static PyObject *
reversed_new_impl(PyTypeObject *type, PyObject *seq);
static PyObject *
reversed_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
{
PyObject *return_value = NULL;
PyTypeObject *base_tp = &PyReversed_Type;
PyObject *seq;
if ((type == base_tp || type->tp_init == base_tp->tp_init) &&
!_PyArg_NoKeywords("reversed", kwargs)) {
goto exit;
}
if (!_PyArg_CheckPositional("reversed", PyTuple_GET_SIZE(args), 1, 1)) {
goto exit;
}
seq = PyTuple_GET_ITEM(args, 0);
return_value = reversed_new_impl(type, seq);
exit:
return return_value;
}
/*[clinic end generated code: output=aba0ddbeab1601e3 input=a9049054013a1b77]*/
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