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Viewing changes to COLLADABaseUtils/src/COLLADABUHashFunctions.cpp

  • Committer: Package Import Robot
  • Author(s): Matteo F. Vescovi
  • Date: 2015-05-14 17:23:27 UTC
  • Revision ID: package-import@ubuntu.com-20150514172327-f862u8envms01fra
Tags: upstream-0.1.0~20140703.ddf8f47+dfsg1
Import upstream version 0.1.0~20140703.ddf8f47+dfsg1

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COLLADABaseUtils/src/COLLADABUHashFunctions.cpp
 
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/*
 
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    Copyright (c) 2008-2009 NetAllied Systems GmbH
 
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    This file is part of COLLADABaseUtils.
 
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    Licensed under the MIT Open Source License,
 
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    for details please see LICENSE file or the website
 
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    http://www.opensource.org/licenses/mit-license.php
 
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*/
 
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#include "COLLADABUStableHeaders.h"
 
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#include "COLLADABUHashFunctions.h"
 
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#include "COLLADABUURI.h"
 
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#include "COLLADABUStringUtils.h"
 
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namespace COLLADABU
 
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{
 
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        size_t calculateHash( const String& str )
 
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        {
 
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                return calculateHash(str.c_str());
 
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        }
 
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        size_t calculateHashUpper( const String& str )
 
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        {
 
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                return calculateHashUpper(str.c_str());
 
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        }
 
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        size_t calculateHash( const char* str )
 
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        {
 
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                unsigned long h = 0;
 
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                unsigned long g;
 
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                const char* pos = str;
 
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                while (*pos != 0) {
 
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                        h = (h << 4) + *pos++;
 
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                        if ((g = (h & 0xf0000000)) != 0)
 
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                                h ^= g >> 24;
 
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                        h &= ~g;
 
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                }
 
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                return h;
 
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        }
 
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        size_t calculateHashUpper( const char* str )
 
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        {
 
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                unsigned long h = 0;
 
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                unsigned long g;
 
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                const char* pos = str;
 
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                while (*pos != 0) {
 
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                        h = (h << 4) + StringUtils::toUpperASCIIChar(*pos++);
 
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                        if ((g = (h & 0xf0000000)) != 0)
 
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                                h ^= g >> 24;
 
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                        h &= ~g;
 
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                }
 
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                return h;
 
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        }
 
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        size_t calculateHash( const URI& uri )
 
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        {
 
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                return calculateHash(uri.getURIString());
 
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        }
 
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} // namespace COLLADABU