8000 gh-98724: Fix Py_CLEAR() macro side effects by vstinner · Pull Request #99100 · python/cpython · GitHub
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gh-98724: Fix Py_CLEAR() macro side effects #99100

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Merged
merged 3 commits into from
Nov 9, 2022
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gh-98724: Fix Py_CLEAR() macro side effects #99100

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gh-98724: Fix Py_CLEAR() macro side effects
vstinner Nov 4, 2022
655234e
Py_SETREF() was added to Python 3.6 (and Python 3.5.2)
vstinner Nov 9, 2022
e33beba
there are => these are
vstinner Nov 9, 2022
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Py_SETREF() was added to Python 3.6 (and Python 3.5.2)
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@vstinner
vstinner committed Nov 9, 2022
commit 655234e0dbe6ec60f11cd2c3ef46f2e7b24099f5
4 changes: 4 additions & 0 deletions Doc/c-api/refcounting.rst
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Expand Up @@ -164,6 +164,8 @@ of Python objects.
*dst* old value, so that any code triggered as a side-effect of `dst`
getting torn down no longer believes `dst` points to a valid object.

.. versionadded:: 3.6

.. versionchanged:: 3.12
The macro arguments are now only evaluated once. If an argument has side
effects, there are no longer duplicated.
Expand All @@ -174,6 +176,8 @@ of Python objects.
Variant of :c:macro:`Py_SETREF` macro that uses :c:func:`Py_XDECREF` instead
of :c:func:`Py_DECREF`.

.. versionadded:: 3.6

.. versionchanged:: 3.12
The macro arguments are now only evaluated once. If an argument has side
effects, there are no longer duplicated.
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