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-rw-r--r--Include/internal/pycore_object.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/Include/internal/pycore_object.h b/Include/internal/pycore_object.h
index 5a328f04ba..8b78f79e95 100644
--- a/Include/internal/pycore_object.h
+++ b/Include/internal/pycore_object.h
@@ -279,7 +279,7 @@ static inline size_t
_PyType_PreHeaderSize(PyTypeObject *tp)
{
return _PyType_IS_GC(tp) * sizeof(PyGC_Head) +
- _PyType_HasFeature(tp, Py_TPFLAGS_MANAGED_DICT) * 2 * sizeof(PyObject *);
+ _PyType_HasFeature(tp, Py_TPFLAGS_PREHEADER) * 2 * sizeof(PyObject *);
}
void _PyObject_GC_Link(PyObject *op);
@@ -296,7 +296,7 @@ extern int _Py_CheckSlotResult(
// Test if a type supports weak references
static inline int _PyType_SUPPORTS_WEAKREFS(PyTypeObject *type) {
- return (type->tp_weaklistoffset > 0);
+ return (type->tp_weaklistoffset != 0);
}
extern PyObject* _PyType_AllocNoTrack(PyTypeObject *type, Py_ssize_t nitems);
@@ -346,7 +346,7 @@ _PyDictOrValues_SetValues(PyDictOrValues *ptr, PyDictValues *values)
ptr->values = ((char *)values) - 1;
}
-#define MANAGED_DICT_OFFSET (((int)sizeof(PyObject *))*-3)
+#define MANAGED_WEAKREF_OFFSET (((Py_ssize_t)sizeof(PyObject *))*-4)
extern PyObject ** _PyObject_ComputedDictPointer(PyObject *);
extern void _PyObject_FreeInstanceAttributes(PyObject *obj);