ReGameDLL_CS/regamedll/game_shared/simple_checksum.h
s1lent 32df585edc Remove hookers stuff
Refactoring & cleanup code
2017-11-01 18:30:47 +03:00

44 lines
1.7 KiB
C

/*
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* In addition, as a special exception, the author gives permission to
* link the code of this program with the Half-Life Game Engine ("HL
* Engine") and Modified Game Libraries ("MODs") developed by Valve,
* L.L.C ("Valve"). You must obey the GNU General Public License in all
* respects for all of the code used other than the HL Engine and MODs
* from Valve. If you modify this file, you may extend this exception
* to your version of the file, but you are not obligated to do so. If
* you do not wish to do so, delete this exception statement from your
* version.
*
*/
#pragma once
// Compute a simple checksum for the given data.
// Each byte in the data is multiplied by its position to track re-ordering changes
inline unsigned int ComputeSimpleChecksum(const unsigned char *dataPointer, int dataLength)
{
unsigned int checksum = 0;
for (int i = 1; i <= dataLength; i++)
{
checksum += (*dataPointer) * i;
++dataPointer;
}
return checksum;
}