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[3.11] gh-62260: Fix ctypes.Structure subclassing with multiple layers (GH-13374)#113624
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serhiy-storchaka merged 1 commit intopython:3.11fromserhiy-storchaka:backport-5f3cc90-3.11Jan 1, 2024
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[3.11] gh-62260: Fix ctypes.Structure subclassing with multiple layers (GH-13374)#113624
serhiy-storchaka merged 1 commit intopython:3.11fromserhiy-storchaka:backport-5f3cc90-3.11Jan 1, 2024
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… layers (pythonGH-13374)The length field of StgDictObject for Structure class contains nowthe total number of items in ffi_type_pointer.elements (excludingthe trailing null).The old behavior of using the number of elements in the parent class cancause the array to be truncated when it is copied, especially when thereare multiple layers of subclassing.(cherry picked from commit5f3cc90)Co-authored-by: Jeffrey Kintscher <49998481+websurfer5@users.noreply.github.com>Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
This was referencedJan 1, 2024
gentoo-bot pushed a commit to gentoo/cpython that referenced this pull requestSep 19, 2024
… layers (pythonGH-13374) (pythonGH-113624)The length field of StgDictObject for Structure class contains nowthe total number of items in ffi_type_pointer.elements (excludingthe trailing null).The old behavior of using the number of elements in the parent class cancause the array to be truncated when it is copied, especially when thereare multiple layers of subclassing.(cherry picked from commit5f3cc90)Co-authored-by: Jeffrey Kintscher <49998481+websurfer5@users.noreply.github.com>Signed-off-by: Michał Górny <mgorny@gentoo.org>
gentoo-bot pushed a commit to gentoo/cpython that referenced this pull requestSep 19, 2024
… layers (pythonGH-13374) (pythonGH-113624)The length field of StgDictObject for Structure class contains nowthe total number of items in ffi_type_pointer.elements (excludingthe trailing null).The old behavior of using the number of elements in the parent class cancause the array to be truncated when it is copied, especially when thereare multiple layers of subclassing.(cherry picked from commit5f3cc90)Co-authored-by: Jeffrey Kintscher <49998481+websurfer5@users.noreply.github.com>Signed-off-by: Michał Górny <mgorny@gentoo.org>
gentoo-bot pushed a commit to gentoo/cpython that referenced this pull requestSep 19, 2024
… layers (pythonGH-13374) (pythonGH-113624)The length field of StgDictObject for Structure class contains nowthe total number of items in ffi_type_pointer.elements (excludingthe trailing null).The old behavior of using the number of elements in the parent class cancause the array to be truncated when it is copied, especially when thereare multiple layers of subclassing.(cherry picked from commit5f3cc90)Co-authored-by: Jeffrey Kintscher <49998481+websurfer5@users.noreply.github.com>Signed-off-by: Michał Górny <mgorny@gentoo.org>
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The length field of StgDictObject for Structure class contains now the total number of items in ffi_type_pointer.elements (excluding the trailing null).
The old behavior of using the number of elements in the parent class can cause the array to be truncated when it is copied, especially when there are multiple layers of subclassing.
(cherry picked from commit5f3cc90)