ctypes.POINTER(None) returns ctypes.c_void_p

stdlib/@tests/test_cases/ctypes/check_pointer.py

@@ -0,0 +1,8 @@
+from __future__ import annotations
+
+import ctypes
+from typing import Type
+from typing_extensions import assert_type
+
+assert_type(ctypes.POINTER(None), Type[ctypes.c_void_p])
+assert_type(ctypes.POINTER(ctypes.c_int), Type[ctypes._Pointer[ctypes.c_int]])

stdlib/_ctypes.pyi

@@ -2,7 +2,7 @@ import sys
 from _typeshed import ReadableBuffer, WriteableBuffer
 from abc import abstractmethod
 from collections.abc import Callable, Iterable, Iterator, Mapping, Sequence
-from ctypes import CDLL, ArgumentError as ArgumentError
+from ctypes import CDLL, ArgumentError as ArgumentError, c_void_p
 from typing import Any, ClassVar, Generic, TypeVar, overload
 from typing_extensions import Self, TypeAlias
 
@@ -99,6 +99,9 @@ class _Pointer(_PointerLike, _CData, Generic[_CT]):
     def __getitem__(self, key: slice, /) -> list[Any]: ...
     def __setitem__(self, key: int, value: Any, /) -> None: ...
 
+@overload
+def POINTER(type: None, /) -> type[c_void_p]: ...
+@overload
 def POINTER(type: type[_CT], /) -> type[_Pointer[_CT]]: ...
 def pointer(obj: _CT, /) -> _Pointer[_CT]: ...