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-rw-r--r--doc/source/reference/c-api/array.rst3
1 files changed, 3 insertions, 0 deletions
diff --git a/doc/source/reference/c-api/array.rst b/doc/source/reference/c-api/array.rst
index a2b56cee7..215584b62 100644
--- a/doc/source/reference/c-api/array.rst
+++ b/doc/source/reference/c-api/array.rst
@@ -997,6 +997,9 @@ argument must be a :c:type:`PyObject *<PyObject>` that can be directly interpret
called on flexible dtypes. Types that are attached to an array will always
be sized, hence the array form of this macro not existing.
+ ..versionchanged:: 1.18.0
+ For structured datatypes with no fields this function now return False.
+
.. c:function:: PyTypeNum_ISUSERDEF(num)
.. c:function:: PyDataType_ISUSERDEF(descr)