60 lines
1.5 KiB
C++
60 lines
1.5 KiB
C++
/*
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* $Id$
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#include "KX_HashedPtr.h"
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unsigned int KX_Hash(void * inDWord)
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{
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#if defined(_WIN64)
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unsigned __int64 key = (unsigned __int64)inDWord;
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#else
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unsigned long key = (unsigned long)inDWord;
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#endif
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key += ~(key << 16);
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key ^= (key >> 5);
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key += (key << 3);
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key ^= (key >> 13);
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key += ~(key << 9);
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key ^= (key >> 17);
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return (unsigned int)(key & 0xffffffff);
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}
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CHashedPtr::CHashedPtr(void* val) : m_valptr(val)
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{
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}
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unsigned int CHashedPtr::hash() const
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{
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return KX_Hash(m_valptr);
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}
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