diff options
| -rw-r--r-- | Lib/test/test_itertools.py | 8 | ||||
| -rw-r--r-- | Misc/NEWS.d/next/Library/2024-11-09-10-31-10.gh-issue-126595.A-7MyC.rst | 2 | ||||
| -rw-r--r-- | Modules/itertoolsmodule.c | 3 |
3 files changed, 13 insertions, 0 deletions
diff --git a/Lib/test/test_itertools.py b/Lib/test/test_itertools.py index a52e1d3..b94d688 100644 --- a/Lib/test/test_itertools.py +++ b/Lib/test/test_itertools.py @@ -494,6 +494,8 @@ class TestBasicOps(unittest.TestCase): self.assertEqual(take(2, zip('abc',count(-3))), [('a', -3), ('b', -2)]) self.assertRaises(TypeError, count, 2, 3, 4) self.assertRaises(TypeError, count, 'a') + self.assertEqual(take(3, count(maxsize)), + [maxsize, maxsize + 1, maxsize + 2]) self.assertEqual(take(10, count(maxsize-5)), list(range(maxsize-5, maxsize+5))) self.assertEqual(take(10, count(-maxsize-5)), @@ -540,6 +542,12 @@ class TestBasicOps(unittest.TestCase): self.assertEqual(take(20, count(-maxsize-15, 3)), take(20, range(-maxsize-15,-maxsize+100, 3))) self.assertEqual(take(3, count(10, maxsize+5)), list(range(10, 10+3*(maxsize+5), maxsize+5))) + self.assertEqual(take(3, count(maxsize, 2)), + [maxsize, maxsize + 2, maxsize + 4]) + self.assertEqual(take(3, count(maxsize, maxsize)), + [maxsize, 2 * maxsize, 3 * maxsize]) + self.assertEqual(take(3, count(-maxsize, maxsize)), + [-maxsize, 0, maxsize]) self.assertEqual(take(3, count(2, 1.25)), [2, 3.25, 4.5]) self.assertEqual(take(3, count(2, 3.25-4j)), [2, 5.25-4j, 8.5-8j]) self.assertEqual(take(3, count(Decimal('1.1'), Decimal('.1'))), diff --git a/Misc/NEWS.d/next/Library/2024-11-09-10-31-10.gh-issue-126595.A-7MyC.rst b/Misc/NEWS.d/next/Library/2024-11-09-10-31-10.gh-issue-126595.A-7MyC.rst new file mode 100644 index 0000000..84a5dc0 --- /dev/null +++ b/Misc/NEWS.d/next/Library/2024-11-09-10-31-10.gh-issue-126595.A-7MyC.rst @@ -0,0 +1,2 @@ +Fix a crash when instantiating :class:`itertools.count` with an initial +count of :data:`sys.maxsize` on debug builds. Patch by Bénédikt Tran. diff --git a/Modules/itertoolsmodule.c b/Modules/itertoolsmodule.c index 1201fa0..78fbdcd 100644 --- a/Modules/itertoolsmodule.c +++ b/Modules/itertoolsmodule.c @@ -3291,6 +3291,9 @@ itertools_count_impl(PyTypeObject *type, PyObject *long_cnt, PyErr_Clear(); fast_mode = 0; } + else if (cnt == PY_SSIZE_T_MAX) { + fast_mode = 0; + } } } else { cnt = 0; |