QuaZip quazip-1-4
quacrc32.h
1#ifndef QUACRC32_H
2#define QUACRC32_H
3
4/*
5Copyright (C) 2005-2014 Sergey A. Tachenov
6
7This file is part of QuaZip.
8
9QuaZip is free software: you can redistribute it and/or modify
10it under the terms of the GNU Lesser General Public License as published by
11the Free Software Foundation, either version 2.1 of the License, or
12(at your option) any later version.
13
14QuaZip is distributed in the hope that it will be useful,
15but WITHOUT ANY WARRANTY; without even the implied warranty of
16MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17GNU Lesser General Public License for more details.
18
19You should have received a copy of the GNU Lesser General Public License
20along with QuaZip. If not, see <http://www.gnu.org/licenses/>.
21
22See COPYING file for the full LGPL text.
23
24Original ZIP package is copyrighted by Gilles Vollant and contributors,
25see quazip/(un)zip.h files for details. Basically it's the zlib license.
26*/
27
28#include "quachecksum32.h"
29
31
35class QUAZIP_EXPORT QuaCrc32 : public QuaChecksum32 {
36
37public:
38 QuaCrc32();
39
40 quint32 calculate(const QByteArray &data) override;
41
42 void reset() override;
43 void update(const QByteArray &buf) override;
44 quint32 value() override;
45
46private:
47 quint32 checksum;
48};
49
50#endif //QUACRC32_H
Checksum interface.
Definition: quachecksum32.h:53
virtual quint32 calculate(const QByteArray &data)=0
Calculates the checksum for data.
virtual void update(const QByteArray &buf)=0
Updates the calculated checksum for the stream.
virtual void reset()=0
Resets the calculation on a checksun for a stream.
virtual quint32 value()=0
Value of the checksum calculated for the stream passed throw update().
CRC32 checksum.
Definition: quacrc32.h:35