mirror of https://github.com/AxioDL/metaforce.git
53 lines
1.3 KiB
C++
53 lines
1.3 KiB
C++
/*
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Copyright (C) 2005-2014 Sergey A. Tachenov
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This file is part of QuaZip.
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QuaZip is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 2.1 of the License, or
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(at your option) any later version.
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QuaZip is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with QuaZip. If not, see <http://www.gnu.org/licenses/>.
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See COPYING file for the full LGPL text.
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Original ZIP package is copyrighted by Gilles Vollant and contributors,
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see quazip/(un)zip.h files for details. Basically it's the zlib license.
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*/
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#include "quacrc32.h"
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#include <zlib.h>
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QuaCrc32::QuaCrc32()
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{
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reset();
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}
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quint32 QuaCrc32::calculate(const QByteArray &data)
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{
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return crc32( crc32(0L, Z_NULL, 0), (const Bytef*)data.data(), data.size() );
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}
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void QuaCrc32::reset()
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{
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checksum = crc32(0L, Z_NULL, 0);
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}
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void QuaCrc32::update(const QByteArray &buf)
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{
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checksum = crc32( checksum, (const Bytef*)buf.data(), buf.size() );
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}
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quint32 QuaCrc32::value()
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{
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return checksum;
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}
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