1991-02-19 12:39:46 +00:00
										 
									 
								 
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								#ifndef Py_BITSET_H
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								#define Py_BITSET_H
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								#ifdef __cplusplus
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								extern "C" {
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								#endif
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											1990-10-14 12:07:46 +00:00
										 
									 
								 
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								/* Bitset interface */
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								#define BYTE		char
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								typedef BYTE *bitset;
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								bitset newbitset(int nbits);
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								void delbitset(bitset bs);
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											1994-12-30 15:33:50 +00:00
										 
									 
								 
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								#define testbit(ss, ibit) (((ss)[BIT2BYTE(ibit)] & BIT2MASK(ibit)) != 0)
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								int addbit(bitset bs, int ibit); /* Returns 0 if already set */
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								int samebitset(bitset bs1, bitset bs2, int nbits);
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								void mergebitset(bitset bs1, bitset bs2, int nbits);
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											1990-10-14 12:07:46 +00:00
										 
									 
								 
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								#define BITSPERBYTE	(8*sizeof(BYTE))
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								#define NBYTES(nbits)	(((nbits) + BITSPERBYTE - 1) / BITSPERBYTE)
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								#define BIT2BYTE(ibit)	((ibit) / BITSPERBYTE)
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								#define BIT2SHIFT(ibit)	((ibit) % BITSPERBYTE)
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								#define BIT2MASK(ibit)	(1 << BIT2SHIFT(ibit))
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								#define BYTE2BIT(ibyte)	((ibyte) * BITSPERBYTE)
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											1993-07-28 09:05:47 +00:00
										 
									 
								 
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								#ifdef __cplusplus
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								}
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								#endif
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								#endif /* !Py_BITSET_H */
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