as_crc.h

changeset 1
d64aaa7d146f
child 3
c1941114ca88
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/as_crc.h	Fri Nov 28 11:21:08 2008 +0100
     1.3 @@ -0,0 +1,60 @@
     1.4 +//
     1.5 +//  OSSP asgui - Accounting system graphical user interface
     1.6 +//  Copyright (c) 2002-2004 The OSSP Project (http://www.ossp.org/)
     1.7 +//  Copyright (c) 2002-2004 Ralf S. Engelschall <rse@engelschall.com>
     1.8 +//  Copyright (c) 2002-2004 Michael Schloh von Bennewitz <michael@schloh.com>
     1.9 +//  Copyright (c) 2002-2004 Cable & Wireless Telecommunications Services GmbH
    1.10 +//
    1.11 +//  This file is part of OSSP asgui, an accounting system graphical user
    1.12 +//  interface which can be found at http://www.ossp.org/pkg/tool/asgui/.
    1.13 +//
    1.14 +//  Permission to use, copy, modify, and distribute this software for
    1.15 +//  any purpose with or without fee is hereby granted, provided that
    1.16 +//  the above copyright notice and this permission notice appear in all
    1.17 +//  copies.
    1.18 +//
    1.19 +//  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
    1.20 +//  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
    1.21 +//  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
    1.22 +//  IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
    1.23 +//  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    1.24 +//  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    1.25 +//  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
    1.26 +//  USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
    1.27 +//  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
    1.28 +//  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
    1.29 +//  OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    1.30 +//  SUCH DAMAGE.
    1.31 +//
    1.32 +//  as_crc.h: ISO C++ interface
    1.33 +//
    1.34 +
    1.35 +#ifndef CRC_H
    1.36 +#define CRC_H
    1.37 +
    1.38 +#include <string>       // For copy constructor using string
    1.39 +#include <qstring.h>    // For deriving from QString
    1.40 +
    1.41 +#include "as_gui.h"     // General definitions like U32 typedefs
    1.42 +
    1.43 +
    1.44 +class Qualistring : public QString
    1.45 +{
    1.46 +private:
    1.47 +    U32 m_pkHash[256];          // Used for CRC32 value generation
    1.48 +
    1.49 +private:
    1.50 +    U32 mirrorBits(U32, U8);    // Helper method, mirror a bitstream
    1.51 +    void initCrc(void);         // Helper method, fill hash table
    1.52 +
    1.53 +public:                                                                 // Constructors
    1.54 +    Qualistring(void) : QString() {initCrc();};                          // Default
    1.55 +    Qualistring(const QString &kCopy) : QString(kCopy) {initCrc();};     // Copy
    1.56 +    Qualistring(const char *pkcCopy) : QString(pkcCopy) {initCrc();};    // Copy
    1.57 +    Qualistring(const std::string &kCopy) : QString(kCopy) {initCrc();}; // Copy
    1.58 +
    1.59 +    U32 getCrc(void);                           // Generate and return a CRC32
    1.60 +    Qualistring &operator=(const QString &);    // Overload equals operator
    1.61 +};
    1.62 +
    1.63 +#endif // CRC_H

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