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CheckSum.h
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1 /*
2 * Copyright (c) 2014, Oculus VR, Inc.
3 * All rights reserved.
4 *
5 * This source code is licensed under the BSD-style license found in the
6 * RakNet License.txt file in the licenses directory of this source tree. An additional grant
7 * of patent rights can be found in the RakNet Patents.txt file in the same directory.
8 *
9 *
10 * Modified work: Copyright (c) 2017, SLikeSoft UG (haftungsbeschränkt)
11 *
12 * This source code was modified by SLikeSoft. Modifications are licensed under the MIT-style
13 * license found in the license.txt file in the root directory of this source tree.
14 */
15
20
21 #ifndef __CHECKSUM_H
22 #define __CHECKSUM_H
23
24 #include "memoryoverride.h"
25
27 class CheckSum
28 {
29
30 public:
31
33
34 CheckSum()
35 {
36 Clear();
37 }
38
39 void Clear()
40 {
41 sum = 0;
42 r = 55665;
43 c1 = 52845;
44 c2 = 22719;
45 }
46
47 void Add ( unsigned int w );
48
49
50 void Add ( unsigned short w );
51
52 void Add ( unsigned char* b, unsigned int length );
53
54 void Add ( unsigned char b );
55
56 unsigned int Get ()
57 {
58 return sum;
59 }
60
61 protected:
62 unsigned short r;
63 unsigned short c1;
64 unsigned short c2;
65 unsigned int sum;
66 };
67
68 #endif