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-rw-r--r--Modules/_ctypes/_ctypes.c7
-rw-r--r--Modules/_ctypes/callproc.c1
2 files changed, 6 insertions, 2 deletions
diff --git a/Modules/_ctypes/_ctypes.c b/Modules/_ctypes/_ctypes.c
index 41264d3..40cf480 100644
--- a/Modules/_ctypes/_ctypes.c
+++ b/Modules/_ctypes/_ctypes.c
@@ -936,8 +936,11 @@ PyCPointerType_from_param(PyObject *type, PyObject *value)
{
StgDictObject *typedict;
- if (value == Py_None)
- return PyLong_FromLong(0); /* NULL pointer */
+ if (value == Py_None) {
+ /* ConvParam will convert to a NULL pointer later */
+ Py_INCREF(value);
+ return value;
+ }
typedict = PyType_stgdict(type);
assert(typedict); /* Cannot be NULL for pointer types */
diff --git a/Modules/_ctypes/callproc.c b/Modules/_ctypes/callproc.c
index cbc5cf8..f5eaa0d 100644
--- a/Modules/_ctypes/callproc.c
+++ b/Modules/_ctypes/callproc.c
@@ -547,6 +547,7 @@ PyTypeObject PyCArg_Type = {
* C function call.
*
* 1. Python integers are converted to C int and passed by value.
+ * Py_None is converted to a C NULL pointer.
*
* 2. 3-tuples are expected to have a format character in the first
* item, which must be 'i', 'f', 'd', 'q', or 'P'.