// Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

// CompressionBookmark

// 

//

#ifndef __COMPRESSIONBOOKMARK_H_

#define __COMPRESSIONBOOKMARK_H_

class TCompressionBookMark

	{

public:

	TCompressionBookMark();

public:

	inline void CalculateCheckSum();

	inline TBool IsCheckSumOk() const;

	TInt iSrcDataOffset;

	TInt iCursorPos;

	TUint32 iCheckSum;

	TInt iCheckSum2;

	};

inline TCompressionBookMark::TCompressionBookMark() :

	iSrcDataOffset(0), iCursorPos(0)

	{

	CalculateCheckSum();

	}

inline void TCompressionBookMark::CalculateCheckSum()

	{

	iCheckSum=((TUint32) iSrcDataOffset)^((TUint32) iCursorPos);

	iCheckSum2=(1-iSrcDataOffset)+(1-iCursorPos);

	}

inline TBool TCompressionBookMark::IsCheckSumOk() const

	{

	TBool check1=(iCheckSum==(((TUint32) iSrcDataOffset)^((TUint32) iCursorPos)));

	TBool check2=(iCheckSum2==((1-iSrcDataOffset)+(1-iCursorPos)));

	return (check1 && check2);

	}

#endif//__COMPRESSIONBOOKMARK_H_