1 files changed, 59 insertions, 0 deletions
diff --git a/include/xmloff/PropertySetInfoHash.hxx b/include/xmloff/PropertySetInfoHash.hxx
new file mode 100644
index 000000000000..8d9705b68afb
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+++ b/include/xmloff/PropertySetInfoHash.hxx
@@ -0,0 +1,59 @@
+/* -*- 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 _XMLOFF_PROPERTYSETINFOHASH_HXX
+#define _XMLOFF_PROPERTYSETINFOHASH_HXX
+
+#include <xmloff/PropertySetInfoKey.hxx>
+
+#include <string.h>
+#include <memory>
+
+struct PropertySetInfoHash
+{
+    inline size_t operator()( const PropertySetInfoKey& r ) const;
+    inline bool operator()( const PropertySetInfoKey& r1,
+                               const PropertySetInfoKey& r2 ) const;
+};
+
+inline size_t PropertySetInfoHash::operator()(
+        const PropertySetInfoKey& r ) const
+{
+    const sal_Int32* pBytesAsInt32Array =
+        (const sal_Int32*)r.aImplementationId.getConstArray();
+    sal_Int32 nId32 =   pBytesAsInt32Array[0] ^
+                        pBytesAsInt32Array[1] ^
+                        pBytesAsInt32Array[2] ^
+                        pBytesAsInt32Array[3];
+    return (size_t)nId32 ^ (size_t)r.xPropInfo.get();
+}
+
+inline bool PropertySetInfoHash::operator()(
+        const PropertySetInfoKey& r1,
+        const PropertySetInfoKey& r2 ) const
+{
+    if( r1.xPropInfo != r2.xPropInfo )
+        return sal_False;
+
+    const sal_Int8* pId1 = r1.aImplementationId.getConstArray();
+    const sal_Int8* pId2 = r2.aImplementationId.getConstArray();
+    return memcmp( pId1, pId2, 16 * sizeof( sal_Int8 ) ) == 0;
+}
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */