Initial commit of OpenSPARC T2 architecture model.
[OpenSPARC-T2-SAM] / sam-t2 / devtools / v9 / include / python2.4 / bitset.h
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1
2#ifndef Py_BITSET_H
3#define Py_BITSET_H
4#ifdef __cplusplus
5extern "C" {
6#endif
7
8/* Bitset interface */
9
10#define BYTE char
11
12typedef BYTE *bitset;
13
14bitset newbitset(int nbits);
15void delbitset(bitset bs);
16#define testbit(ss, ibit) (((ss)[BIT2BYTE(ibit)] & BIT2MASK(ibit)) != 0)
17int addbit(bitset bs, int ibit); /* Returns 0 if already set */
18int samebitset(bitset bs1, bitset bs2, int nbits);
19void mergebitset(bitset bs1, bitset bs2, int nbits);
20
21#define BITSPERBYTE (8*sizeof(BYTE))
22#define NBYTES(nbits) (((nbits) + BITSPERBYTE - 1) / BITSPERBYTE)
23
24#define BIT2BYTE(ibit) ((ibit) / BITSPERBYTE)
25#define BIT2SHIFT(ibit) ((ibit) % BITSPERBYTE)
26#define BIT2MASK(ibit) (1 << BIT2SHIFT(ibit))
27#define BYTE2BIT(ibyte) ((ibyte) * BITSPERBYTE)
28
29#ifdef __cplusplus
30}
31#endif
32#endif /* !Py_BITSET_H */