ossp-pkg/as/as-gui/as_crc.h
//
// OSSP asgui - Accounting system graphical user interface
// Copyright (c) 2002-2004 The OSSP Project (http://www.ossp.org/)
// Copyright (c) 2002-2004 Ralf S. Engelschall <rse@engelschall.com>
// Copyright (c) 2002-2004 Michael Schloh von Bennewitz <michael@schloh.com>
// Copyright (c) 2002-2004 Cable & Wireless Telecommunications Services GmbH
//
// This file is part of OSSP asgui, an accounting system graphical user
// interface which can be found at http://www.ossp.org/pkg/tool/asgui/.
//
// Permission to use, copy, modify, and distribute this software for
// any purpose with or without fee is hereby granted, provided that
// the above copyright notice and this permission notice appear in all
// copies.
//
// THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
// IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
// USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
// OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
// SUCH DAMAGE.
//
// as_crc.h: ISO C++ interface
//
#ifndef CRC_H
#define CRC_H
#include <string> // For copy constructor using string
#include <qstring.h> // For deriving from QString
#include "as_gui.h" // General definitions like U32 typedefs
class Qualistring : public QString
{
private:
U32 m_pkHash[256]; // Used for CRC32 value generation
private:
U32 mirrorBits(U32, U8); // Helper method, mirror a bitstream
void initCrc(void); // Helper method, fill hash table
public: // Constructors
Qualistring(void) : QString() {initCrc();}; // Default
Qualistring(const QString &kCopy) : QString(kCopy) {initCrc();}; // Copy
Qualistring(const char *pkcCopy) : QString(pkcCopy) {initCrc();}; // Copy
Qualistring(const std::string &kCopy) : QString(kCopy) {initCrc();}; // Copy
U32 getCrc(void); // Generate and return a CRC32
Qualistring &operator=(const QString &); // Overload equals operator
};
#endif // CRC_H
