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Diffstat (limited to 'config.tests/mac/crc/main.cpp')
-rw-r--r-- | config.tests/mac/crc/main.cpp | 108 |
1 files changed, 0 insertions, 108 deletions
diff --git a/config.tests/mac/crc/main.cpp b/config.tests/mac/crc/main.cpp deleted file mode 100644 index f02177ccb7..0000000000 --- a/config.tests/mac/crc/main.cpp +++ /dev/null @@ -1,108 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/ -** -** This file is part of the config.tests of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** This file may be used under the terms of the GNU Lesser General Public -** License version 2.1 as published by the Free Software Foundation and -** appearing in the file LICENSE.LGPL included in the packaging of this -** file. Please review the following information to ensure the GNU Lesser -** General Public License version 2.1 requirements will be met: -** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU General -** Public License version 3.0 as published by the Free Software Foundation -** and appearing in the file LICENSE.GPL included in the packaging of this -** file. Please review the following information to ensure the GNU General -** Public License version 3.0 requirements will be met: -** http://www.gnu.org/copyleft/gpl.html. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include <iostream> -#include <cstdlib> -#include <cstring> - - -class CCRC32 -{ -public: - CCRC32() { initialize(); } - - unsigned long FullCRC(const unsigned char *sData, unsigned long ulDataLength) - { - unsigned long ulCRC = 0xffffffff; - PartialCRC(&ulCRC, sData, ulDataLength); - return(ulCRC ^ 0xffffffff); - } - - void PartialCRC(unsigned long *ulCRC, const unsigned char *sData, unsigned long ulDataLength) - { - while(ulDataLength--) { - *ulCRC = (*ulCRC >> 8) ^ ulTable[(*ulCRC & 0xFF) ^ *sData++]; - } - } - -private: - void initialize(void) - { - unsigned long ulPolynomial = 0x04C11DB7; - memset(&ulTable, 0, sizeof(ulTable)); - for(int iCodes = 0; iCodes <= 0xFF; iCodes++) { - ulTable[iCodes] = Reflect(iCodes, 8) << 24; - for(int iPos = 0; iPos < 8; iPos++) { - ulTable[iCodes] = ((ulTable[iCodes] << 1) & 0xffffffff) - ^ ((ulTable[iCodes] & (1 << 31)) ? ulPolynomial : 0); - } - - ulTable[iCodes] = Reflect(ulTable[iCodes], 32); - } - } - unsigned long Reflect(unsigned long ulReflect, const char cChar) - { - unsigned long ulValue = 0; - // Swap bit 0 for bit 7, bit 1 For bit 6, etc.... - for(int iPos = 1; iPos < (cChar + 1); iPos++) { - if(ulReflect & 1) { - ulValue |= (1ul << (cChar - iPos)); - } - ulReflect >>= 1; - } - return ulValue; - } - unsigned long ulTable[256]; // CRC lookup table array. -}; - - -int main(int argc, char **argv) -{ - CCRC32 crc; - char *name; - if (argc < 2) { - std::cerr << "usage: crc <string>\n"; - return 0; - } else { - name = argv[1]; - } - std::cout << crc.FullCRC((unsigned char *)name, strlen(name)) << std::endl; -} |