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GeezerVison is showing github.com — [3.12] gh-107249: Implement Py_UNUSED() for MSVC (GH-107250) by miss-islington · Pull Request #127907 · python/cpython

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@miss-islington

@miss-islington miss-islington commented Dec 13, 2024 •
edited by bedevere-app Bot
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Fix warnings C4100 in Py_UNUSED() when Python is built with "cl /W4".

Example with this function included by Python.h:

static inline unsigned int
PyUnicode_IS_READY(PyObject* Py_UNUSED(op))
{ return 1; }

Without this change, building a C program with "cl /W4" which just
includes Python.h emits the warning:

Include\cpython/unicodeobject.h(199):
warning C4100: '_unused_op': unreferenced formal parameter

This change fix this warning.
(cherry picked from commit 6a43cce)

Co-authored-by: Victor Stinner [email protected]

  • Issue: Implement Py_UNUSED() for Windows MSVC compiler #107249

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@vstinner @miss-islington
pythongh-107249: Implement Py_UNUSED() for MSVC (pythonGH-107250)
3e904d1
Fix warnings C4100 in Py_UNUSED() when Python is built with "cl /W4".

Example with this function included by Python.h:

    static inline unsigned int
    PyUnicode_IS_READY(PyObject* Py_UNUSED(op))
    { return 1; }

Without this change, building a C program with "cl /W4" which just
includes Python.h emits the warning:

    Include\cpython/unicodeobject.h(199):
    warning C4100: '_unused_op': unreferenced formal parameter

This change fix this warning.
(cherry picked from commit 6a43cce)

Co-authored-by: Victor Stinner <[email protected]>
This was referenced Dec 13, 2024
Implement Py_UNUSED() for Windows MSVC compiler #107249
Closed
gh-107249: Implement Py_UNUSED() for MSVC #107250
Merged
@bedevere-app bedevere-app Bot added the awaiting review label Dec 13, 2024
@vstinner
vstinner enabled auto-merge (squash) December 13, 2024 11:41
@vstinner vstinner mentioned this pull request Dec 13, 2024
[tests] Backport test_cext and test_cppext (C API tests) from main to the 3.12 branch #127906
Closed
@vstinner
vstinner merged commit f3a689f into python:3.12 Dec 13, 2024
@bedevere-app bedevere-app Bot removed the awaiting review label Dec 13, 2024
@miss-islington
miss-islington deleted the backport-6a43cce-3.12 branch January 2, 2026 16:51
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2 participants

@miss-islington @vstinner
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