bpo-33012: Fix invalid function cast warnings with gcc 8 for METH_NOARGS. (GH-6030)

METH_NOARGS functions need only a single argument but they are cast
into a PyCFunction, which takes two arguments.  This triggers an
invalid function cast warning in gcc8 due to the argument mismatch.
Fix this by adding a dummy unused argument.

1 files changed, 3 insertions, 3 deletions

diff --git a/Objects/enumobject.c b/Objects/enumobject.c
index 4d0af14..d993a50 100644
--- a/Objects/enumobject.c
+++ b/Objects/enumobject.c
@@ -189,7 +189,7 @@ enum_next(enumobject *en)
 }
 
 static PyObject *
-enum_reduce(enumobject *en)
+enum_reduce(enumobject *en, PyObject *Py_UNUSED(ignored))
 {
     if (en->en_longindex != NULL)
         return Py_BuildValue("O(OO)", Py_TYPE(en), en->en_sit, en->en_longindex);
@@ -349,7 +349,7 @@ reversed_next(reversedobject *ro)
 }
 
 static PyObject *
-reversed_len(reversedobject *ro)
+reversed_len(reversedobject *ro, PyObject *Py_UNUSED(ignored))
 {
     Py_ssize_t position, seqsize;
 
@@ -365,7 +365,7 @@ reversed_len(reversedobject *ro)
 PyDoc_STRVAR(length_hint_doc, "Private method returning an estimate of len(list(it)).");
 
 static PyObject *
-reversed_reduce(reversedobject *ro)
+reversed_reduce(reversedobject *ro, PyObject *Py_UNUSED(ignored))
 {
     if (ro->seq)
         return Py_BuildValue("O(O)n", Py_TYPE(ro), ro->seq, ro->index);