issue-3 changes

src/quazip/quaadler32.h

@@ -0,0 +1,54 @@
+#ifndef QUAADLER32_H
+#define QUAADLER32_H
+
+/*
+Copyright (C) 2010 Adam Walczak
+Copyright (C) 2005-2014 Sergey A. Tachenov
+
+This file is part of QuaZIP.
+
+QuaZIP is free software: you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+QuaZIP 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 Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with QuaZIP.  If not, see <http://www.gnu.org/licenses/>.
+
+See COPYING file for the full LGPL text.
+
+Original ZIP package is copyrighted by Gilles Vollant and contributors,
+see quazip/(un)zip.h files for details. Basically it's the zlib license.
+*/
+
+#include <QByteArray>
+
+#include "quachecksum32.h"
+
+/// Adler32 checksum
+/** \class QuaAdler32 quaadler32.h <quazip/quaadler32.h>
+ * This class wrappers the adler32 function with the QuaChecksum32 interface.
+ * See QuaChecksum32 for more info.
+ */
+class QUAZIP_EXPORT QuaAdler32 : public QuaChecksum32
+{
+
+public:
+	QuaAdler32();
+
+	quint32 calculate(const QByteArray &data);
+
+	void reset();
+	void update(const QByteArray &buf);
+	quint32 value();
+
+private:
+	quint32 checksum;
+};
+
+#endif //QUAADLER32_H