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-rw-r--r--Include/abstract.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/Include/abstract.h b/Include/abstract.h
index cd963af..fe089dc 100644
--- a/Include/abstract.h
+++ b/Include/abstract.h
@@ -1097,6 +1097,9 @@ PyAPI_FUNC(void) _Py_add_one_to_index_F(int nd, Py_ssize_t *index,
const Py_ssize_t *shape);
PyAPI_FUNC(void) _Py_add_one_to_index_C(int nd, Py_ssize_t *index,
const Py_ssize_t *shape);
+
+/* Convert Python int to Py_ssize_t. Do nothing if the argument is None. */
+PyAPI_FUNC(int) _Py_convert_optional_to_ssize_t(PyObject *, void *);
#endif /* !Py_LIMITED_API */