/usr/include/dcmtk/ofstd/ofcrc32.h is in libdcmtk2-dev 3.6.0-9.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 | /*
*
* Copyright (C) 2002-2010, OFFIS e.V.
* All rights reserved. See COPYRIGHT file for details.
*
* This software and supporting documentation were developed by
*
* OFFIS e.V.
* R&D Division Health
* Escherweg 2
* D-26121 Oldenburg, Germany
*
*
* Module: ofstd
*
* Author: Marco Eichelberg
*
* Purpose: general purpose 32-bit CRC in C++
* Code is based on the CRC32 implementation (C)1986 Gary S. Brown
*
* Last Update: $Author: joergr $
* Update Date: $Date: 2010-10-14 13:15:50 $
* CVS/RCS Revision: $Revision: 1.4 $
* Status: $State: Exp $
*
* CVS/RCS Log at end of file
*
*/
#ifndef OFCRC32_H
#define OFCRC32_H
/** general-purpose 32-bit CRC algorithm.
*/
class OFCRC32
{
public:
/// constructor
OFCRC32()
: value(0)
{
}
/// destructor
~OFCRC32()
{
}
/// reset object to initial state (zero CRC)
void reset()
{
value=0;
}
/** add block of raw data to CRC
* @param ptr pointer to raw data
* @param size length of raw data block in bytes
*/
void addBlock(const void *ptr, unsigned long size);
/// returns the current CRC as unsigned int
unsigned int getCRC32() const
{
return value;
}
/** compute CRC for given block of data using a temporary CRC object
* @param ptr pointer to raw data
* @param size length of raw data block in bytes
* @return CRC32 as unsigned int
*/
static unsigned int compute(const void *ptr, unsigned long size);
private:
/// CRC look-up table
static const unsigned int crctab[256];
/// current CRC
unsigned int value;
};
#endif
/*
* CVS/RCS Log:
* $Log: ofcrc32.h,v $
* Revision 1.4 2010-10-14 13:15:50 joergr
* Updated copyright header. Added reference to COPYRIGHT file.
*
* Revision 1.3 2005/12/08 16:05:53 meichel
* Changed include path schema for all DCMTK header files
*
* Revision 1.2 2003/12/05 10:37:41 joergr
* Removed leading underscore characters from preprocessor symbols (reserved
* symbols). Updated copyright date where appropriate.
*
* Revision 1.1 2002/01/08 10:18:48 joergr
* Added general purpose class which computes a CRC32 checksum on arbitrary
* data.
*
*
*/
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