hxbitset.h
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- /* ***** BEGIN LICENSE BLOCK *****
- * Source last modified: $Id: hxbitset.h,v 1.1.1.1.50.1 2004/07/09 02:05:21 hubbe Exp $
- *
- * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file,
- * are subject to the current version of the RealNetworks Public
- * Source License (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the current version of the RealNetworks Community
- * Source License (the "RCSL") available at
- * http://www.helixcommunity.org/content/rcsl, in which case the RCSL
- * will apply. You may also obtain the license terms directly from
- * RealNetworks. You may not use this file except in compliance with
- * the RPSL or, if you have a valid RCSL with RealNetworks applicable
- * to this file, the RCSL. Please see the applicable RPSL or RCSL for
- * the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL") in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your version of
- * this file only under the terms of the GPL, and not to allow others
- * to use your version of this file under the terms of either the RPSL
- * or RCSL, indicate your decision by deleting the provisions above
- * and replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient may
- * use your version of this file under the terms of any one of the
- * RPSL, the RCSL or the GPL.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the
- * portions it created.
- *
- * This file, and the files included with this file, is distributed
- * and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
- * KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
- * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET
- * ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #ifndef _HXBITSET_H_
- #define _HXBITSET_H_
- /*
- * Freely adapted from the g++ BitSet library...
- */
- typedef UINT32 _BS_word;
- #define _BS_CHAR_BIT 8
- #define _BS_BITS_PER_WORD (_BS_CHAR_BIT*sizeof(_BS_word))
- #define _BS_WORDS_NEEDED(NBITS) ((NBITS+_BS_BITS_PER_WORD-1)/_BS_BITS_PER_WORD)
- /* number the bits in a _BS_word in little-endian order */
- #define _BS_BIGENDIAN 0
- #if _BS_BIGENDIAN
- #define _BS_LEFT >>
- #define _BS_RIGHT <<
- #else
- #define _BS_LEFT <<
- #define _BS_RIGHT >>
- #endif
- #if _BS_BIGENDIAN
- #define _BS_BITMASK(BITNO) ((_BS_word)1 << (_BS_BITS_PER_WORD - 1 - (BITNO)))
- #else
- #define _BS_BITMASK(BITNO) ((_BS_word)1 << (BITNO))
- #endif
- #define _BS_INDEX(I) ((unsigned)(I) / _BS_BITS_PER_WORD)
- #define _BS_POS(I) ((I) & (_BS_BITS_PER_WORD - 1))
- #define _BS_SHORT_LEN 8
- class CHXBitset
- {
- public:
- CHXBitset();
- CHXBitset(INT32 maxBit);
- CHXBitset(BYTE* pBitmap, INT32 nCount);
- ~CHXBitset();
- void set(INT32 pos);
- void set(INT32 from, INT32 to);
- void set(); // set all bits
- void clear(INT32 pos);
- void clear(INT32 from, INT32 to);
- void clear(); // clear all bits
- BOOL test(INT32 pos);
- INT32 toByteArray(BYTE** pBitmap);
- INT32 getSize();
- INT32 getNumBits();
- BOOL test(INT32 from, INT32 to);
- void growsize(INT32 maxBit);
- private:
- void setBitsetSize(INT32 nBitsetSize);
- _BS_word* m_pBitset;
- INT32 m_nBitsetSize;
- _BS_word m_pShortBitset[_BS_SHORT_LEN];
- };
- inline INT32
- CHXBitset::getSize()
- {
- // returns size of bitset in bytes
- return m_nBitsetSize * sizeof(_BS_word);
- }
- inline INT32
- CHXBitset::getNumBits()
- {
- return(m_nBitsetSize * _BS_BITS_PER_WORD);
- }
- #endif /* _HXBITSET_H_ */