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GeezerVison is showing github.com — bpo-45476: Add _Py_RVALUE() macro by vstinner · Pull Request #29860 · python/cpython

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@vstinner

@vstinner vstinner commented Nov 30, 2021 •
edited by bedevere-bot
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Add a new _Py_RVALUE() macro to prevent using an expression as an
l-value.

Replace a "(void)" cast with the _Py_RVALUE() macro in the following
macros:

  • PyCell_SET()
  • PyList_SET_ITEM()
  • PyTuple_SET_ITEM()
  • _PyGCHead_SET_FINALIZED()
  • _PyGCHead_SET_NEXT()
  • asdl_seq_SET()
  • asdl_seq_SET_UNTYPED()

Add also parentheses around macro arguments in PyCell_SET() and
PyTuple_SET_ITEM().

https://bugs.python.org/issue45476

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@vstinner
bpo-45476: Add _Py_RVALUE() macro
4f78f72
Add a new _Py_RVALUE() macro to prevent using an expression as an
l-value.

Replace a "(void)" cast with the _Py_RVALUE() macro in the following
macros:

* PyCell_SET()
* PyList_SET_ITEM()
* PyTuple_SET_ITEM()
* _PyGCHead_SET_FINALIZED()
* _PyGCHead_SET_NEXT()
* asdl_seq_SET()
* asdl_seq_SET_UNTYPED()

Add also parentheses around macro arguments in PyCell_SET() and
PyTuple_SET_ITEM().
@the-knights-who-say-ni the-knights-who-say-ni added the CLA signed label Nov 30, 2021
@bedevere-bot bedevere-bot added the awaiting core review label Nov 30, 2021
@vstinner vstinner added the skip news label Nov 30, 2021
@vstinner
vstinner merged commit c19c3a0 into python:main Nov 30, 2021
@bedevere-bot bedevere-bot removed the awaiting core review label Nov 30, 2021
@vstinner
vstinner deleted the rvalue branch November 30, 2021 11:14
shihai1991 added a commit to shihai1991/cpython that referenced this pull request Dec 1, 2021
@shihai1991
Merge branch 'main' into bpo_44133
6edb6f5
* main: (21 commits)
  bpo-45876:  Have stdev() also use decimal specific square root. (pythonGH-29869)
  bpo-45876:  Correctly rounded stdev() and pstdev() for the Decimal case (pythonGH-29828)
  bpo-45711: Change exc_info related APIs to derive type and traceback from the exception instance (pythonGH-29780)
  bpo-30533:Add function inspect.getmembers_static that does not call properties or dynamic properties. (python#20911)
  bpo-45476: Disallow using asdl_seq_GET() as l-value (pythonGH-29866)
  bpo-45476: Add _Py_RVALUE() macro (pythonGH-29860)
  bpo-33381: [doc] strftime's %f option may pad zeros on the left or the right (pythonGH-29801)
  Fix EncodingWarning in Tools/freeze/test/freeze.py (pythonGH-29742)
  no-issue: remove unused import from test_graphlib.py (pythonGH-29853)
  bpo-45931: Prevent Directory.Build.props/targets from leaking from directories above the repo when building on Windows (pythonGH-29854)
  bpo-45653: fix test_embed on windows (pythonGH-29814)
  bpo-45917: Add math.exp2() method - return 2 raised to the power of x (pythonGH-29829)
  bpo-43905: Expand dataclasses.astuple() and asdict() docs (pythonGH-26154)
  bpo-44391: Remove unused argument from a varargs call. (pythonGH-29843)
  bpo-45881: configure --with-freeze-module --with-build-python (pythonGH-29835)
  bpo-45847: PY_STDLIB_MOD_SIMPLE now checks py_stdlib_not_available (pythonGH-29844)
  bpo-45828: Use unraisable exceptions within sqlite3 callbacks (FH-29591)
  bpo-40280: Emscripten systems use .wasm suffix by default (pythonGH-29842)
  bpo-45723: Sort the grand AC_CHECK_HEADERS check (pythonGH-29846)
  bpo-45847: Make socket module conditional (pythonGH-29769)
  ...
shihai1991 added a commit to shihai1991/cpython that referenced this pull request Dec 1, 2021
@shihai1991
Merge branch 'main' into bpo_44133
b71b124
* main: (21 commits)
  bpo-45876:  Have stdev() also use decimal specific square root. (pythonGH-29869)
  bpo-45876:  Correctly rounded stdev() and pstdev() for the Decimal case (pythonGH-29828)
  bpo-45711: Change exc_info related APIs to derive type and traceback from the exception instance (pythonGH-29780)
  bpo-30533:Add function inspect.getmembers_static that does not call properties or dynamic properties. (python#20911)
  bpo-45476: Disallow using asdl_seq_GET() as l-value (pythonGH-29866)
  bpo-45476: Add _Py_RVALUE() macro (pythonGH-29860)
  bpo-33381: [doc] strftime's %f option may pad zeros on the left or the right (pythonGH-29801)
  Fix EncodingWarning in Tools/freeze/test/freeze.py (pythonGH-29742)
  no-issue: remove unused import from test_graphlib.py (pythonGH-29853)
  bpo-45931: Prevent Directory.Build.props/targets from leaking from directories above the repo when building on Windows (pythonGH-29854)
  bpo-45653: fix test_embed on windows (pythonGH-29814)
  bpo-45917: Add math.exp2() method - return 2 raised to the power of x (pythonGH-29829)
  bpo-43905: Expand dataclasses.astuple() and asdict() docs (pythonGH-26154)
  bpo-44391: Remove unused argument from a varargs call. (pythonGH-29843)
  bpo-45881: configure --with-freeze-module --with-build-python (pythonGH-29835)
  bpo-45847: PY_STDLIB_MOD_SIMPLE now checks py_stdlib_not_available (pythonGH-29844)
  bpo-45828: Use unraisable exceptions within sqlite3 callbacks (FH-29591)
  bpo-40280: Emscripten systems use .wasm suffix by default (pythonGH-29842)
  bpo-45723: Sort the grand AC_CHECK_HEADERS check (pythonGH-29846)
  bpo-45847: Make socket module conditional (pythonGH-29769)
  ...
@vstinner vstinner mentioned this pull request Jul 27, 2022
[C API] PEP 674: Disallow using macros (Py_TYPE and Py_SIZE) as l-value #89639
Closed
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3 participants

@vstinner @the-knights-who-say-ni @bedevere-bot
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