We now have a current svn snapshot of libqxt in our contrib dir, and

[quassel.git] / src / contrib / libqxt-2007-10-24 / src / core / qxtnull.h

diff --git a/src/contrib/libqxt-2007-10-24/src/core/qxtnull.h b/src/contrib/libqxt-2007-10-24/src/core/qxtnull.h
new file mode 100644 (file)
index 0000000..e93c9fc
--- /dev/null
+++ b/src/contrib/libqxt-2007-10-24/src/core/qxtnull.h
@@ -0,0 +1,64 @@
+/****************************************************************************
+**
+** Copyright (C) Qxt Foundation. Some rights reserved.
+**
+** This file is part of the QxtCore module of the Qt eXTension library
+**
+** This library is free software; you can redistribute it and/or modify it
+** under the terms of th Common Public License, version 1.0, as published by
+** IBM.
+**
+** This file is provided "AS IS", without WARRANTIES OR CONDITIONS OF ANY
+** KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT LIMITATION, ANY
+** WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR
+** FITNESS FOR A PARTICULAR PURPOSE.
+**
+** You should have received a copy of the CPL along with this file.
+** See the LICENSE file and the cpl1.0.txt file included with the source
+** distribution for more information. If you did not receive a copy of the
+** license, contact the Qxt Foundation.
+**
+** <http://libqxt.sourceforge.net>  <foundation@libqxt.org>
+**
+****************************************************************************/
+
+#ifndef QXTNULL_DEFINED
+#define QXTNULL_DEFINED
+#include <qxtglobal.h>
+
+/**
+\class QxtNull QxtNull
+
+
+\ingroup QxtCore
+
+\brief An object representing the "null" value for QxtNullable.
+
+seealso: QxtNullable
+*/
+
+struct QXT_CORE_EXPORT QxtNull
+{
+    /** integer cast operator
+     * In expressions, QxtNull behaves as an integer zero for compatibility with generic functions.
+     */
+    operator int() const
+    {
+        return 0;
+    }
+    enum { isNull = true };
+};
+
+/*! \relates QxtNull
+ * A predefined null object that can be assigned to any QxtNullable object.
+ */
+extern QxtNull qxtNull;
+
+#ifndef QXT_NO_MACROS
+/*! \relates QxtNull
+ * A convenience alias for qxtNull.
+ */
+#define SKIP qxtNull
+#endif
+
+#endif