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-rw-r--r--Include/tupleobject.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/Include/tupleobject.h b/Include/tupleobject.h
index eec2d98..75574bc 100644
--- a/Include/tupleobject.h
+++ b/Include/tupleobject.h
@@ -56,10 +56,10 @@ PyAPI_FUNC(void) _PyTuple_MaybeUntrack(PyObject *);
/* Macro, trading safety for speed */
#ifndef Py_LIMITED_API
/* Cast argument to PyTupleObject* type. */
-#define _PyTuple_CAST(op) ((PyTupleObject *)(op))
+#define _PyTuple_CAST(op) (assert(PyTuple_Check(op)), (PyTupleObject *)(op))
#define PyTuple_GET_ITEM(op, i) (_PyTuple_CAST(op)->ob_item[i])
-#define PyTuple_GET_SIZE(op) (assert(PyTuple_Check(op)), Py_SIZE(op))
+#define PyTuple_GET_SIZE(op) Py_SIZE(_PyTuple_CAST(op))
/* Macro, *only* to be used to fill in brand new tuples */
#define PyTuple_SET_ITEM(op, i, v) (_PyTuple_CAST(op)->ob_item[i] = v)