include/xmloff/PropertySetInfoHash.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19 #ifndef _XMLOFF_PROPERTYSETINFOHASH_HXX
  20 #define _XMLOFF_PROPERTYSETINFOHASH_HXX
  21
  22 #include <xmloff/PropertySetInfoKey.hxx>
  23
  24 #include <string.h>
  25 #include <memory>
  26
  27 struct PropertySetInfoHash
  28 {
  29     inline size_t operator()( const PropertySetInfoKey& r ) const;
  30     inline bool operator()( const PropertySetInfoKey& r1,
  31                                const PropertySetInfoKey& r2 ) const;
  32 };
  33
  34 inline size_t PropertySetInfoHash::operator()(
  35         const PropertySetInfoKey& r ) const
  36 {
  37     const sal_Int32* pBytesAsInt32Array =
  38         (const sal_Int32*)r.aImplementationId.getConstArray();
  39     sal_Int32 nId32 =   pBytesAsInt32Array[0] ^
  40                         pBytesAsInt32Array[1] ^
  41                         pBytesAsInt32Array[2] ^
  42                         pBytesAsInt32Array[3];
  43     return (size_t)nId32 ^ (size_t)r.xPropInfo.get();
  44 }
  45
  46 inline bool PropertySetInfoHash::operator()(
  47         const PropertySetInfoKey& r1,
  48         const PropertySetInfoKey& r2 ) const
  49 {
  50     if( r1.xPropInfo != r2.xPropInfo )
  51         return sal_False;
  52
  53     const sal_Int8* pId1 = r1.aImplementationId.getConstArray();
  54     const sal_Int8* pId2 = r2.aImplementationId.getConstArray();
  55     return memcmp( pId1, pId2, 16 * sizeof( sal_Int8 ) ) == 0;
  56 }
  57 #endif
  58
  59 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */