mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-04 00:48:58 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

Checking in the code for PEP 357.

Browse source 
This was mostly written by Travis Oliphant.
I've inspected it all; Neal Norwitz and MvL have also looked at it
(in an earlier incarnation).
This commit is contained in:
Guido van Rossum 2006-03-07 18:50:55 +00:00
parent 9d7855076a
commit 38fff8c4e4
19 changed files with 269 additions and 150 deletions
Download patch file Download diff file Expand all files Collapse all files

18
Objects/listobject.c
View file

@ -2452,11 +2452,14 @@ PyDoc_STRVAR(list_doc,
"list() -> new list\n"
"list(sequence) -> new list initialized from sequence's items");
#define HASINDEX(o) PyType_HasFeature((o)->ob_type, Py_TPFLAGS_HAVE_INDEX)
static PyObject *
list_subscript(PyListObject* self, PyObject* item)
{
if (PyInt_Check(item) || PyLong_Check(item)) {
Py_ssize_t i = PyInt_AsSsize_t(item);
PyNumberMethods *nb = item->ob_type->tp_as_number;
if (nb != NULL && HASINDEX(item) && nb->nb_index != NULL) {
Py_ssize_t i = nb->nb_index(item);
if (i == -1 && PyErr_Occurred())
return NULL;
if (i < 0)
@ -2503,14 +2506,9 @@ list_subscript(PyListObject* self, PyObject* item)
static int
list_ass_subscript(PyListObject* self, PyObject* item, PyObject* value)
{
if (PyInt_Check(item)) {
Py_ssize_t i = PyInt_AS_LONG(item);
if (i < 0)
i += PyList_GET_SIZE(self);
return list_ass_item(self, i, value);
}
else if (PyLong_Check(item)) {
Py_ssize_t i = PyInt_AsSsize_t(item);
PyNumberMethods *nb = item->ob_type->tp_as_number;
if (nb != NULL && HASINDEX(item) && nb->nb_index != NULL) {
Py_ssize_t i = nb->nb_index(item);
if (i == -1 && PyErr_Occurred())
return -1;
if (i < 0)