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diff --git a/include/tools/vcompat.hxx b/include/tools/vcompat.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+#ifndef INCLUDED_TOOLS_VCOMPAT_HXX
+#define INCLUDED_TOOLS_VCOMPAT_HXX
+
+#include <tools/toolsdllapi.h>
+
+inline sal_uInt32 COMPAT_FORMAT(char char1, char char2, char char3, char char4)
+{
+ return static_cast<sal_uInt32>(char1) | (static_cast<sal_uInt32>(char2) << 8)
+ | (static_cast<sal_uInt32>(char3) << 16) | (static_cast<sal_uInt32>(char4) << 24);
+};
+
+class SvStream;
+
+class TOOLS_DLLPUBLIC VersionCompatRead
+{
+ SvStream& mrRStm;
+ sal_uInt32 mnCompatPos;
+ sal_uInt32 mnTotalSize;
+ sal_uInt16 mnVersion;
+
+ VersionCompatRead(const VersionCompatRead&) = delete;
+ VersionCompatRead& operator=(const VersionCompatRead&) = delete;
+
+public:
+ VersionCompatRead(SvStream& rStm);
+ ~VersionCompatRead();
+
+ sal_uInt16 GetVersion() const { return mnVersion; }
+};
+
+class TOOLS_DLLPUBLIC VersionCompatWrite
+{
+ SvStream& mrWStm;
+ sal_uInt32 mnCompatPos;
+ sal_uInt32 mnTotalSize;
+
+ VersionCompatWrite(const VersionCompatWrite&) = delete;
+ VersionCompatWrite& operator=(const VersionCompatWrite&) = delete;
+
+public:
+ VersionCompatWrite(SvStream& rStm, sal_uInt16 nVersion = 1);
+ ~VersionCompatWrite();
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */