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[3.12] gh-105059: Fix MSCV compiler warning on PyObject union (GH-107239) (#107248)

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gh-105059: Fix MSCV compiler warning on PyObject union (GH-107239)

Use pragma to ignore the MSCV compiler warning on the PyObject
nameless union.
(cherry picked from commit 1c8fe9bdb6)

Co-authored-by: Victor Stinner <vstinner@python.org>
This commit is contained in:
Miss Islington (bot) 2023-07-25 08:35:49 -07:00 • committed by GitHub
parent e788c0aeeb
commit 9c31d94050
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1 changed files with 11 additions and 0 deletions
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11
Include/object.h
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@ -165,10 +165,17 @@ check by comparing the reference count field to the immortality reference count.
*/
struct _object {
_PyObject_HEAD_EXTRA
#if (defined(__GNUC__) || defined(__clang__)) \
&& !(defined __STDC_VERSION__ && __STDC_VERSION__ >= 201112L)
// On C99 and older, anonymous union is a GCC and clang extension
__extension__
#endif
#ifdef _MSC_VER
// Ignore MSC warning C4201: "nonstandard extension used:
// nameless struct/union"
__pragma(warning(push))
__pragma(warning(disable: 4201))
#endif
union {
Py_ssize_t ob_refcnt;
@ -176,6 +183,10 @@ struct _object {
PY_UINT32_T ob_refcnt_split[2];
#endif
};
#ifdef _MSC_VER
__pragma(warning(pop))
#endif
PyTypeObject *ob_type;
};