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50 lines
1.8 KiB
50 lines
1.8 KiB
/* |
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* |
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* This program is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License as published by the |
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* Free Software Foundation; either version 2 of the License, or (at |
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* 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, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
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* In addition, as a special exception, the author gives permission to |
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* link the code of this program with the Half-Life Game Engine ("HL |
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* Engine") and Modified Game Libraries ("MODs") developed by Valve, |
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* L.L.C ("Valve"). You must obey the GNU General Public License in all |
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* respects for all of the code used other than the HL Engine and MODs |
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* from Valve. If you modify this file, you may extend this exception |
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* to your version of the file, but you are not obligated to do so. If |
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* you do not wish to do so, delete this exception statement from your |
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* version. |
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* |
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*/ |
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#ifndef SIMPLE_CHECKSUM_H |
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#define SIMPLE_CHECKSUM_H |
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#ifdef _WIN32 |
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#pragma once |
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#endif |
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// Compute a simple checksum for the given data. |
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// Each byte in the data is multiplied by its position to track re-ordering changes |
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/* <4a799e> ../game_shared/simple_checksum.h:12 */ |
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inline unsigned int ComputeSimpleChecksum(const unsigned char *dataPointer, int dataLength) |
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{ |
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unsigned int checksum = 0; |
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for (int i = 1; i <= dataLength; i++) |
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{ |
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checksum += (*dataPointer) * i; |
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++dataPointer; |
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} |
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return checksum; |
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} |
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#endif // SIMPLE_CHECKSUM_H
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