mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-11-02 19:12:55 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 14

bpo-39573: Porting to Python 3.10: Py_SET_SIZE() macro (GH-20610)

Browse source 
In What's New in Python 3.10, propose Py_SET_SIZE(), Py_SET_REFCNT()
and Py_SET_TYPE() macros for backward compatibility with Python 3.9
and older.
This commit is contained in:
Victor Stinner 2020-06-04 22:10:43 +02:00 • committed by GitHub
parent 6ed578f6db
commit dc24b8a2ac
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 21 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

24
Doc/whatsnew/3.10.rst
View file

@ -135,17 +135,35 @@ Porting to Python 3.10
* Since :c:func:`Py_TYPE()` is changed to the inline static function, * Since :c:func:`Py_TYPE()` is changed to the inline static function,
``Py_TYPE(obj) = new_type`` must be replaced with ``Py_SET_TYPE(obj, new_type)``: ``Py_TYPE(obj) = new_type`` must be replaced with ``Py_SET_TYPE(obj, new_type)``:
see :c:func:`Py_SET_TYPE()` (available since Python 3.9). see :c:func:`Py_SET_TYPE()` (available since Python 3.9). For backward
compatibility, this macro can be used::
#if PY_VERSION_HEX < 0x030900A4
# define Py_SET_TYPE(obj, type) ((Py_TYPE(obj) = (type)), (void)0)
#endif
(Contributed by Dong-hee Na in :issue:`39573`.) (Contributed by Dong-hee Na in :issue:`39573`.)
* Since :c:func:`Py_REFCNT()` is changed to the inline static function, * Since :c:func:`Py_REFCNT()` is changed to the inline static function,
``Py_REFCNT(obj) = new_refcnt`` must be replaced with ``Py_SET_REFCNT(obj, new_refcnt)``: ``Py_REFCNT(obj) = new_refcnt`` must be replaced with ``Py_SET_REFCNT(obj, new_refcnt)``:
see :c:func:`Py_SET_REFCNT()` (available since Python 3.9). see :c:func:`Py_SET_REFCNT()` (available since Python 3.9). For backward
compatibility, this macro can be used::
#if PY_VERSION_HEX < 0x030900A4
# define Py_SET_REFCNT(obj, refcnt) ((Py_REFCNT(obj) = (refcnt)), (void)0)
#endif
(Contributed by Victor Stinner in :issue:`39573`.) (Contributed by Victor Stinner in :issue:`39573`.)
* Since :c:func:`Py_SIZE()` is changed to the inline static function, * Since :c:func:`Py_SIZE()` is changed to the inline static function,
``Py_SIZE(obj) = new_size`` must be replaced with ``Py_SET_SIZE(obj, new_size)``: ``Py_SIZE(obj) = new_size`` must be replaced with ``Py_SET_SIZE(obj, new_size)``:
see :c:func:`Py_SET_SIZE()` (available since Python 3.9). see :c:func:`Py_SET_SIZE()` (available since Python 3.9). For backward
compatibility, this macro can be used::
#if PY_VERSION_HEX < 0x030900A4
# define Py_SET_SIZE(obj, size) ((Py_SIZE(obj) = (size)), (void)0)
#endif
(Contributed by Victor Stinner in :issue:`39573`.) (Contributed by Victor Stinner in :issue:`39573`.)
* Calling :c:func:`PyDict_GetItem` without :term:`GIL` held had been allowed * Calling :c:func:`PyDict_GetItem` without :term:`GIL` held had been allowed