1 files changed, 108 insertions, 0 deletions
diff --git a/config.tests/mac/crc/main.cpp b/config.tests/mac/crc/main.cpp
new file mode 100644
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+++ b/config.tests/mac/crc/main.cpp
@@ -0,0 +1,108 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the config.tests of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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;
+}