michael@1: //
michael@1: //  OSSP asgui - Accounting system graphical user interface
michael@12: //  Copyright (c) 2002-2009 The OSSP Project (http://www.ossp.org/)
michael@12: //  Copyright (c) 2002-2009 Ralf S. Engelschall <rse@engelschall.com>
michael@12: //  Copyright (c) 2002-2009 Michael Schloh von Bennewitz <michael@schloh.com>
michael@12: //  Copyright (c) 2002-2009 Cable & Wireless Telecommunications Services GmbH
michael@1: //
michael@1: //  This file is part of OSSP asgui, an accounting system graphical user
michael@3: //  interface which can be found at http://asgui.europalab.com/.
michael@1: //
michael@1: //  Permission to use, copy, modify, and distribute this software for
michael@1: //  any purpose with or without fee is hereby granted, provided that
michael@1: //  the above copyright notice and this permission notice appear in all
michael@1: //  copies.
michael@1: //
michael@1: //  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
michael@1: //  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
michael@1: //  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
michael@1: //  IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
michael@1: //  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
michael@1: //  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
michael@1: //  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
michael@1: //  USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
michael@1: //  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
michael@1: //  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
michael@1: //  OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
michael@1: //  SUCH DAMAGE.
michael@1: //
michael@1: //  as_crc.h: ISO C++ interface
michael@1: //
michael@1: 
michael@1: #ifndef CRC_H
michael@1: #define CRC_H
michael@1: 
michael@1: #include <string>       // For copy constructor using string
michael@1: #include <qstring.h>    // For deriving from QString
michael@1: 
michael@1: #include "as_gui.h"     // General definitions like U32 typedefs
michael@1: 
michael@1: 
michael@1: class Qualistring : public QString
michael@1: {
michael@1: private:
michael@1:     U32 m_pkHash[256];          // Used for CRC32 value generation
michael@1: 
michael@1: private:
michael@1:     U32 mirrorBits(U32, U8);    // Helper method, mirror a bitstream
michael@1:     void initCrc(void);         // Helper method, fill hash table
michael@1: 
michael@1: public:                                                                 // Constructors
michael@1:     Qualistring(void) : QString() {initCrc();};                          // Default
michael@1:     Qualistring(const QString &kCopy) : QString(kCopy) {initCrc();};     // Copy
michael@1:     Qualistring(const char *pkcCopy) : QString(pkcCopy) {initCrc();};    // Copy
michael@3:     Qualistring(const std::string &kCopy) : QString(QString::fromStdString(kCopy)) {initCrc();}; // Copy
michael@1: 
michael@1:     U32 getCrc(void);                           // Generate and return a CRC32
michael@1:     Qualistring &operator=(const QString &);    // Overload equals operator
michael@1: };
michael@1: 
michael@1: #endif // CRC_H