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| author | Mark Dickinson <dickinsm@gmail.com> | 2016-08-29 16:40:29 +0100 |
|---|---|---|
| committer | Mark Dickinson <dickinsm@gmail.com> | 2016-08-29 16:40:29 +0100 |
| commit | 334dc5e447f88e20700aeba4cebbde3cdf074eb3 (patch) | |
| tree | e06769231d2a668c158d7a7881079cbce5e30a33 /Objects/longobject.c | |
| parent | 415b3926060db352df4690e8526d85dc70afdf85 (diff) | |
| download | cpython-334dc5e447f88e20700aeba4cebbde3cdf074eb3.tar.gz | |
Issue #27214: Fix potential bug and remove useless optimization in long_invert. Thanks Oren Milman.
Diffstat (limited to 'Objects/longobject.c')
| -rw-r--r-- | Objects/longobject.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/Objects/longobject.c b/Objects/longobject.c index 38e707220a..89b6862605 100644 --- a/Objects/longobject.c +++ b/Objects/longobject.c @@ -4170,8 +4170,10 @@ long_invert(PyLongObject *v) Py_DECREF(w); if (x == NULL) return NULL; - Py_SIZE(x) = -(Py_SIZE(x)); - return (PyObject *)maybe_small_long(x); + _PyLong_Negate(&x); + /* No need for maybe_small_long here, since any small + longs will have been caught in the Py_SIZE <= 1 fast path. */ + return (PyObject *)x; } static PyObject * |