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| author | Zackery Spytz <zspytz@gmail.com> | 2019-05-17 07:13:03 (GMT) |
|---|---|---|
| committer | Serhiy Storchaka <storchaka@gmail.com> | 2019-05-17 07:13:03 (GMT) |
| commit | 14514d9084a40f599c57da853a305aa264562a43 (patch) | |
| tree | 36cb61b74dbfda9ce1cdf72a864b640d0bda546d /Lib/test/seq_tests.py | |
| parent | 870b035bc6da96689b59dd6f79782ec6f1873617 (diff) | |
| download | cpython-14514d9084a40f599c57da853a305aa264562a43.zip cpython-14514d9084a40f599c57da853a305aa264562a43.tar.gz cpython-14514d9084a40f599c57da853a305aa264562a43.tar.bz2 | |
bpo-36946: Fix possible signed integer overflow when handling slices. (GH-13375)
The final addition (cur += step) may overflow, so use size_t for "cur".
"cur" is always positive (even for negative steps), so it is safe to use
size_t here.
Co-Authored-By: Martin Panter <vadmium+py@gmail.com>
Diffstat (limited to 'Lib/test/seq_tests.py')
| -rw-r--r-- | Lib/test/seq_tests.py | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/Lib/test/seq_tests.py b/Lib/test/seq_tests.py index 6aedd2b..65b110e 100644 --- a/Lib/test/seq_tests.py +++ b/Lib/test/seq_tests.py @@ -209,6 +209,7 @@ class CommonTest(unittest.TestCase): a = self.type2test([0,1,2,3,4]) self.assertEqual(a[ -pow(2,128): 3 ], self.type2test([0,1,2])) self.assertEqual(a[ 3: pow(2,145) ], self.type2test([3,4])) + self.assertEqual(a[3::sys.maxsize], self.type2test([3])) def test_contains(self): u = self.type2test([0, 1, 2]) |