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quacrc32.h
1 #ifndef QUACRC32_H
2 #define QUACRC32_H
3
4 /*
5 Copyright (C) 2005-2014 Sergey A. Tachenov
6
7 This file is part of QuaZIP.
8
9 QuaZIP is free software: you can redistribute it and/or modify
10 it under the terms of the GNU Lesser General Public License as published by
11 the Free Software Foundation, either version 3 of the License, or
12 (at your option) any later version.
13
14 QuaZIP is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU Lesser General Public License for more details.
18
19 You should have received a copy of the GNU Lesser General Public License
20 along with QuaZIP. If not, see <http://www.gnu.org/licenses/>.
21
22 See COPYING file for the full LGPL text.
23
24 Original ZIP package is copyrighted by Gilles Vollant and contributors,
25 see quazip/(un)zip.h files for details. Basically it's the zlib license.
26 */
27
28 #include "quachecksum32.h"
29
31
35 class QUAZIP_EXPORT QuaCrc32 : public QuaChecksum32 {
36
37 public:
38 QuaCrc32();
39
40 quint32 calculate(const QByteArray &data);
41
42 void reset();
43 void update(const QByteArray &buf);
44 quint32 value();
45
46 private:
47 quint32 checksum;
48 };
49
50 #endif //QUACRC32_H
QuaChecksum32::calculate
virtual quint32 calculate(const QByteArray &data)=0
Calculates the checksum for data.
QuaChecksum32::value
virtual quint32 value()=0
Value of the checksum calculated for the stream passed throw update().
QuaChecksum32
Checksum interface.
Definition: quachecksum32.h:52
QuaChecksum32::update
virtual void update(const QByteArray &buf)=0
Updates the calculated checksum for the stream.
QuaCrc32
CRC32 checksum.
Definition: quacrc32.h:35
QuaChecksum32::reset
virtual void reset()=0
Resets the calculation on a checksun for a stream.