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| author | Guido van Rossum <guido@python.org> | 2002-03-01 22:24:49 (GMT) |
|---|---|---|
| committer | Guido van Rossum <guido@python.org> | 2002-03-01 22:24:49 (GMT) |
| commit | 2eb0b87d141ff89582ddd7bb414f9958e39fc6ae (patch) | |
| tree | c80c850e549d64ecd53dc858c3167f6c01aaac87 /Lib | |
| parent | 6f33250ef939356b8a577049cafce1961760fd27 (diff) | |
| download | cpython-2eb0b87d141ff89582ddd7bb414f9958e39fc6ae.zip cpython-2eb0b87d141ff89582ddd7bb414f9958e39fc6ae.tar.gz cpython-2eb0b87d141ff89582ddd7bb414f9958e39fc6ae.tar.bz2 | |
SF patch 514641 (Naofumi Honda) - Negative ob_size of LongObjects
Due to the bizarre definition of _PyLong_Copy(), creating an instance
of a subclass of long with a negative value could cause core dumps
later on. Unfortunately it looks like the behavior of _PyLong_Copy()
is quite intentional, so the fix is more work than feels comfortable.
This fix is almost, but not quite, the code that Naofumi Honda added;
in addition, I added a test case.
Diffstat (limited to 'Lib')
| -rw-r--r-- | Lib/test/test_descr.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Lib/test/test_descr.py b/Lib/test/test_descr.py index dd95dde..e667efb 100644 --- a/Lib/test/test_descr.py +++ b/Lib/test/test_descr.py @@ -1748,6 +1748,10 @@ def inherits(): verify((a + 0).__class__ is long) verify((0 + a).__class__ is long) + # Check that negative clones don't segfault + a = longclone(-1) + vereq(a.__dict__, {}) + class precfloat(float): __slots__ = ['prec'] def __init__(self, value=0.0, prec=12): |