As-gui Sources / file comparison
comparison: as_crc.h
as_crc.h
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| 1 // | |
| 2 // OSSP asgui - Accounting system graphical user interface | |
| 3 // Copyright (c) 2002-2004 The OSSP Project (http://www.ossp.org/) | |
| 4 // Copyright (c) 2002-2004 Ralf S. Engelschall <rse@engelschall.com> | |
| 5 // Copyright (c) 2002-2004 Michael Schloh von Bennewitz <michael@schloh.com> | |
| 6 // Copyright (c) 2002-2004 Cable & Wireless Telecommunications Services GmbH | |
| 7 // | |
| 8 // This file is part of OSSP asgui, an accounting system graphical user | |
| 9 // interface which can be found at http://www.ossp.org/pkg/tool/asgui/. | |
| 10 // | |
| 11 // Permission to use, copy, modify, and distribute this software for | |
| 12 // any purpose with or without fee is hereby granted, provided that | |
| 13 // the above copyright notice and this permission notice appear in all | |
| 14 // copies. | |
| 15 // | |
| 16 // THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED | |
| 17 // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
| 18 // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
| 19 // IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR | |
| 20 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF | |
| 23 // USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |
| 24 // ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
| 25 // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT | |
| 26 // OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 27 // SUCH DAMAGE. | |
| 28 // | |
| 29 // as_crc.h: ISO C++ interface | |
| 30 // | |
| 31 | |
| 32 #ifndef CRC_H | |
| 33 #define CRC_H | |
| 34 | |
| 35 #include <string> // For copy constructor using string | |
| 36 #include <qstring.h> // For deriving from QString | |
| 37 | |
| 38 #include "as_gui.h" // General definitions like U32 typedefs | |
| 39 | |
| 40 | |
| 41 class Qualistring : public QString | |
| 42 { | |
| 43 private: | |
| 44 U32 m_pkHash[256]; // Used for CRC32 value generation | |
| 45 | |
| 46 private: | |
| 47 U32 mirrorBits(U32, U8); // Helper method, mirror a bitstream | |
| 48 void initCrc(void); // Helper method, fill hash table | |
| 49 | |
| 50 public: // Constructors | |
| 51 Qualistring(void) : QString() {initCrc();}; // Default | |
| 52 Qualistring(const QString &kCopy) : QString(kCopy) {initCrc();}; // Copy | |
| 53 Qualistring(const char *pkcCopy) : QString(pkcCopy) {initCrc();}; // Copy | |
| 54 Qualistring(const std::string &kCopy) : QString(kCopy) {initCrc();}; // Copy | |
| 55 | |
| 56 U32 getCrc(void); // Generate and return a CRC32 | |
| 57 Qualistring &operator=(const QString &); // Overload equals operator | |
| 58 }; | |
| 59 | |
| 60 #endif // CRC_H |
