/usr/include/dcmtk/dcmdata/dcvrulup.h is in libdcmtk-dev 3.6.2-3build3.
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*
* Copyright (C) 1994-2017, 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: dcmdata
*
* Author: Gerd Ehlers, Andreas Barth
*
* Purpose: Interface of class DcmUnsignedLongOffset
*
*/
#ifndef DCVRULUP_H
#define DCVRULUP_H
#include "dcmtk/config/osconfig.h" /* make sure OS specific configuration is included first */
#include "dcmtk/dcmdata/dcvrul.h"
class DcmDirectoryRecord;
class DcmItem;
/** a class used for DICOMDIR byte offsets
*/
class DCMTK_DCMDATA_EXPORT DcmUnsignedLongOffset
: public DcmUnsignedLong
{
public:
// Make friend with DcmDirectoryRecord and DcmItem which require access
// to protected constructor allowing construction using an explicit
// value length.
friend class DcmDirectoryRecord;
friend class DcmItem;
/** constructor.
* Create new element from given tag and length.
* @param tag DICOM tag for the new element
*/
DcmUnsignedLongOffset(const DcmTag &tag);
/** copy constructor
* @param old element to be copied
*/
DcmUnsignedLongOffset(const DcmUnsignedLongOffset &old);
/** destructor
*/
virtual ~DcmUnsignedLongOffset();
/** assignment operator.
* @param obj the offset to be copied
* @return reference to this object
*/
DcmUnsignedLongOffset &operator=(const DcmUnsignedLongOffset &obj);
/** clone method
* @return deep copy of this object
*/
virtual DcmObject *clone() const
{
return new DcmUnsignedLongOffset(*this);
}
/** Virtual object copying. This method can be used for DcmObject
* and derived classes to get a deep copy of an object. Internally
* the assignment operator is called if the given DcmObject parameter
* is of the same type as "this" object instance. If not, an error
* is returned. This function permits copying an object by value
* in a virtual way which therefore is different to just calling the
* assignment operator of DcmElement which could result in slicing
* the object.
* @param rhs - [in] The instance to copy from. Has to be of the same
* class type as "this" object
* @return EC_Normal if copying was successful, error otherwise
*/
virtual OFCondition copyFrom(const DcmObject& rhs);
/** get element type identifier
* @return type identifier of this class (internal type: EVR_up)
*/
virtual DcmEVR ident() const;
/** clear the currently stored value
* @return status, EC_Normal if successful, an error code otherwise
*/
virtual OFCondition clear();
/** get stored object reference
* @return pointer to the currently referenced object (might be NULL)
*/
virtual DcmObject *getNextRecord();
/** set stored object reference
* @param record pointer to the object to be referenced
* @return pointer to the newly referenced object (might be NULL)
*/
virtual DcmObject *setNextRecord(DcmObject *record);
/** check the currently stored element value
* @param autocorrect correct value length if OFTrue
* @return status, EC_Normal if value length is correct, an error code otherwise
*/
virtual OFCondition verify(const OFBool autocorrect = OFFalse);
private:
/** constructor. Create new element from given tag and length.
* Only reachable from friend classes since construction with
* length different from 0 leads to a state with length being set but
* the element's value still being uninitialized. This can lead to crashes
* when the value is read or written. Thus the method calling this
* constructor with length > 0 must ensure that the element's value is
* explicitly initialized, too.
* @param tag DICOM tag for the new element
* @param len value length for the new element
*/
DcmUnsignedLongOffset(const DcmTag &tag,
const Uint32 len);
/// pointer to the referenced object. NULL means that no object is referenced.
DcmObject *nextRecord;
};
#endif // DCVRUSUP_H
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