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gh-111178: fix UBSan failures in Modules/_decimal #129074

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Merged
encukou merged 6 commits into from
Jan 27, 2025
Merged

gh-111178: fix UBSan failures in Modules/_decimal #129074

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8b55a0f
Introduce cast macros
picnixz Jan 20, 2025
1bed6f6
fix UBSan failures for `PyDecContextObject`
picnixz Jan 20, 2025
f0f5b73
fix UBSan failures for `PyDecContextManagerObject`
picnixz Jan 20, 2025
8f8ecba
remove redundant casts for `PyDecObject`
picnixz Jan 20, 2025
f44421a
use macros for `PyDecSignalDictObject`
picnixz Jan 20, 2025
692cede
use macros for `PyDecObject`
picnixz Jan 20, 2025
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use macros for PyDecSignalDictObject
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@picnixz
picnixz committed Jan 20, 2025
commit f44421adee6be336561613e6a544479db9c8b883
4 changes: 2 additions & 2 deletions Modules/_decimal/_decimal.c
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Expand Up @@ -214,8 +214,8 @@ typedef struct {
#define PyDecSignalDict_Check(st, v) Py_IS_TYPE(v, (st)->PyDecSignalDict_Type)
#define PyDecContext_Check(st, v) PyObject_TypeCheck(v, (st)->PyDecContext_Type)
#define MPD(v) (&((PyDecObject *)v)->dec)
#define SdFlagAddr(v) (((PyDecSignalDictObject *)v)->flags)
#define SdFlags(v) (*((PyDecSignalDictObject *)v)->flags)
#define SdFlagAddr(v) (_PyDecSignalDictObject_CAST(v)->flags)
#define SdFlags(v) (*_PyDecSignalDictObject_CAST(v)->flags)
#define CTX(v) (&_PyDecContextObject_CAST(v)->ctx)
#define CtxCaps(v) (_PyDecContextObject_CAST(v)->capitals)

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