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, 6 insertions, 6 deletions

diff --git a/Objects/descrobject.c b/Objects/descrobject.c
index 6014039..dfad1ec 100644
--- a/Objects/descrobject.c
+++ b/Objects/descrobject.c
@@ -448,7 +448,7 @@ descr_get_qualname(PyDescrObject *descr)
 }
 
 static PyObject *
-descr_reduce(PyDescrObject *descr)
+descr_reduce(PyDescrObject *descr, PyObject *Py_UNUSED(ignored))
 {
     PyObject *builtins;
     PyObject *getattr;
@@ -868,28 +868,28 @@ mappingproxy_get(mappingproxyobject *pp, PyObject *args)
 }
 
 static PyObject *
-mappingproxy_keys(mappingproxyobject *pp)
+mappingproxy_keys(mappingproxyobject *pp, PyObject *Py_UNUSED(ignored))
 {
     _Py_IDENTIFIER(keys);
     return _PyObject_CallMethodId(pp->mapping, &PyId_keys, NULL);
 }
 
 static PyObject *
-mappingproxy_values(mappingproxyobject *pp)
+mappingproxy_values(mappingproxyobject *pp, PyObject *Py_UNUSED(ignored))
 {
     _Py_IDENTIFIER(values);
     return _PyObject_CallMethodId(pp->mapping, &PyId_values, NULL);
 }
 
 static PyObject *
-mappingproxy_items(mappingproxyobject *pp)
+mappingproxy_items(mappingproxyobject *pp, PyObject *Py_UNUSED(ignored))
 {
     _Py_IDENTIFIER(items);
     return _PyObject_CallMethodId(pp->mapping, &PyId_items, NULL);
 }
 
 static PyObject *
-mappingproxy_copy(mappingproxyobject *pp)
+mappingproxy_copy(mappingproxyobject *pp, PyObject *Py_UNUSED(ignored))
 {
     _Py_IDENTIFIER(copy);
     return _PyObject_CallMethodId(pp->mapping, &PyId_copy, NULL);
@@ -1086,7 +1086,7 @@ wrapper_repr(wrapperobject *wp)
 }
 
 static PyObject *
-wrapper_reduce(wrapperobject *wp)
+wrapper_reduce(wrapperobject *wp, PyObject *Py_UNUSED(ignored))
 {
     PyObject *builtins;
     PyObject *getattr;