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Issue #27214: Fix potential bug and remove useless optimization in long_invert. Thanks Oren Milman.

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This commit is contained in:
Mark Dickinson 2016-08-29 16:40:29 +01:00
parent 2be278c70c
commit 583c6e860c
2 changed files with 8 additions and 2 deletions
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6
Objects/longobject.c
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@ -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 *