1 /* 2 * QNull 3 * 4 * Copyright (C) 2015 Red Hat, Inc. 5 * 6 * Authors: 7 * Markus Armbruster <armbru@redhat.com> 8 * 9 * This work is licensed under the terms of the GNU LGPL, version 2.1 10 * or later. See the COPYING.LIB file in the top-level directory. 11 */ 12 13 #ifndef QNULL_H 14 #define QNULL_H 15 16 #include "qapi/qmp/qobject.h" 17 18 struct QNull { 19 QObject base; 20 }; 21 22 extern QNull qnull_; 23 24 static inline QNull *qnull(void) 25 { 26 QINCREF(&qnull_); 27 return &qnull_; 28 } 29 30 bool qnull_is_equal(const QObject *x, const QObject *y); 31 32 #endif /* QNULL_H */ 33