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v0.5.1
Revision 3ba70368f5a0043b600476a5ea2585673a1ee772 authored by Éric Araujo on 12 November 2010, 22:27:28 UTC, committed by Éric Araujo on 12 November 2010, 22:27:28 UTC 
Merged revisions 86438 via svnmerge from
 
svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r86438 | eric.araujo | 2010-11-12 23:25:23 +0100 (ven., 12 nov. 2010) | 2 lines

  And now for something completely different: Finish fixing #10252 again.
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1 parent fc0280f
Raw File
bitset.h 

#ifndef Py_BITSET_H
#define Py_BITSET_H
#ifdef __cplusplus
extern "C" {
#endif

/* Bitset interface */

#define BYTE		char

typedef BYTE *bitset;

bitset newbitset(int nbits);
void delbitset(bitset bs);
#define testbit(ss, ibit) (((ss)[BIT2BYTE(ibit)] & BIT2MASK(ibit)) != 0)
int addbit(bitset bs, int ibit); /* Returns 0 if already set */
int samebitset(bitset bs1, bitset bs2, int nbits);
void mergebitset(bitset bs1, bitset bs2, int nbits);

#define BITSPERBYTE	(8*sizeof(BYTE))
#define NBYTES(nbits)	(((nbits) + BITSPERBYTE - 1) / BITSPERBYTE)

#define BIT2BYTE(ibit)	((ibit) / BITSPERBYTE)
#define BIT2SHIFT(ibit)	((ibit) % BITSPERBYTE)
#define BIT2MASK(ibit)	(1 << BIT2SHIFT(ibit))
#define BYTE2BIT(ibyte)	((ibyte) * BITSPERBYTE)

#ifdef __cplusplus
}
#endif
#endif /* !Py_BITSET_H */
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