Staging
v0.5.2
Revision fa7e69dc51943a677737e8fc414d2ec196011647 authored by Mark Hammond on 29 January 2009, 12:31:51 UTC, committed by Mark Hammond on 29 January 2009, 12:31:51 UTC
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r69094 | mark.hammond | 2009-01-29 23:13:31 +1100 (Thu, 29 Jan 2009) | 2 lines

  Fix issue5075: bdist_wininst should not depend on the vc runtime?
........
1 parent e4b6ab7
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 */
back to top