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gh-110190: Fix ctypes structs with array on Windows ARM64 (GH-114753)

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(cherry picked from commit a06b606462)

Co-authored-by: Diego Russo <diego.russo@arm.com>
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Miss Islington (bot) 2024-01-31 01:15:16 +01:00 • committed by GitHub
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Misc/NEWS.d/next/Library/2024-01-30-15-34-08.gh-issue-110190.Z5PQQX.rst Normal file
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@ -0,0 +1 @@
Fix ctypes structs with array on Windows ARM64 platform by setting ``MAX_STRUCT_SIZE`` to 32 in stgdict. Patch by Diego Russo

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Modules/_ctypes/stgdict.c
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@ -699,7 +699,7 @@ PyCStructUnionType_update_stgdict(PyObject *type, PyObject *fields, int isStruct
/*
* The value of MAX_STRUCT_SIZE depends on the platform Python is running on.
*/
#if defined(__aarch64__) || defined(__arm__)
#if defined(__aarch64__) || defined(__arm__) || defined(_M_ARM64)
# define MAX_STRUCT_SIZE 32
#elif defined(__powerpc64__)
# define MAX_STRUCT_SIZE 64