bpo-33029: Fix signatures of getter and setter functions. (GH-10746)

Fix also return type for few other functions (clear, releasebuffer).
(cherry picked from commit d4f9cf5545d6d8844e0726552ef2e366f5cc3abd)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

2 files changed, 6 insertions, 4 deletions

diff --git a/Modules/_sqlite/connection.c b/Modules/_sqlite/connection.c
index 65f173c8c8..3d14865315 100644
--- a/Modules/_sqlite/connection.c
+++ b/Modules/_sqlite/connection.c
@@ -55,7 +55,7 @@ static const char * const begin_statements[] = {
     NULL
 };
 
-static int pysqlite_connection_set_isolation_level(pysqlite_Connection* self, PyObject* isolation_level);
+static int pysqlite_connection_set_isolation_level(pysqlite_Connection* self, PyObject* isolation_level, void *Py_UNUSED(ignored));
 static void _pysqlite_drop_unused_cursor_references(pysqlite_Connection* self);
 
 
@@ -147,7 +147,7 @@ int pysqlite_connection_init(pysqlite_Connection* self, PyObject* args, PyObject
         Py_INCREF(isolation_level);
     }
     Py_CLEAR(self->isolation_level);
-    if (pysqlite_connection_set_isolation_level(self, isolation_level) < 0) {
+    if (pysqlite_connection_set_isolation_level(self, isolation_level, NULL) < 0) {
         Py_DECREF(isolation_level);
         return -1;
     }
@@ -1139,7 +1139,8 @@ static PyObject* pysqlite_connection_get_in_transaction(pysqlite_Connection* sel
     Py_RETURN_FALSE;
 }
 
-static int pysqlite_connection_set_isolation_level(pysqlite_Connection* self, PyObject* isolation_level)
+static int
+pysqlite_connection_set_isolation_level(pysqlite_Connection* self, PyObject* isolation_level, void *Py_UNUSED(ignored))
 {
     if (isolation_level == Py_None) {
         PyObject *res = pysqlite_connection_commit(self, NULL);
diff --git a/Modules/_sqlite/row.c b/Modules/_sqlite/row.c
index ec2c788ae7..122bee05f5 100644
--- a/Modules/_sqlite/row.c
+++ b/Modules/_sqlite/row.c
@@ -150,7 +150,8 @@ PyObject* pysqlite_row_subscript(pysqlite_Row* self, PyObject* idx)
     }
 }
 
-Py_ssize_t pysqlite_row_length(pysqlite_Row* self, PyObject* args, PyObject* kwargs)
+static Py_ssize_t
+pysqlite_row_length(pysqlite_Row* self)
 {
     return PyTuple_GET_SIZE(self->data);
 }