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| author | Victor Stinner <vstinner@python.org> | 2022-11-09 13:06:36 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-11-09 13:06:36 (GMT) |
| commit | c03e05c2e72f3ea5e797389e7d1042eef85ad37a (patch) | |
| tree | 3a30ddb1b3b35a9b2ea7d233f242c72e74e71e71 /Doc/whatsnew/3.12.rst | |
| parent | 0124b5dd28eff7bb80eb7244e97e402a036db13b (diff) | |
| download | cpython-c03e05c2e72f3ea5e797389e7d1042eef85ad37a.zip cpython-c03e05c2e72f3ea5e797389e7d1042eef85ad37a.tar.gz cpython-c03e05c2e72f3ea5e797389e7d1042eef85ad37a.tar.bz2 | |
gh-98724: Fix Py_CLEAR() macro side effects (#99100)
The Py_CLEAR(), Py_SETREF() and Py_XSETREF() macros now only evaluate
their argument once. If an argument has side effects, these side
effects are no longer duplicated.
Add test_py_clear() and test_py_setref() unit tests to _testcapi.
Diffstat (limited to 'Doc/whatsnew/3.12.rst')
| -rw-r--r-- | Doc/whatsnew/3.12.rst | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Doc/whatsnew/3.12.rst b/Doc/whatsnew/3.12.rst index 7ebfc55..37b9fb1 100644 --- a/Doc/whatsnew/3.12.rst +++ b/Doc/whatsnew/3.12.rst @@ -792,6 +792,11 @@ Porting to Python 3.12 :class:`bytes` type is accepted for bytes strings. (Contributed by Victor Stinner in :gh:`98393`.) +* The :c:macro:`Py_CLEAR`, :c:macro:`Py_SETREF` and :c:macro:`Py_XSETREF` + macros now only evaluate their argument once. If the argument has side + effects, these side effects are no longer duplicated. + (Contributed by Victor Stinner in :gh:`98724`.) + Deprecated ---------- |