Staging
v0.8.1
v0.8.1
Revision 68daeb0f8575bd4acb7c7b0e2d0bfee4c6c961b2 authored by Thomas Heller on 30 October 2008, 20:29:54 UTC, committed by Thomas Heller on 30 October 2008, 20:29:54 UTC
svn+ssh://pythondev@svn.python.org/python/trunk ........ r67046 | thomas.heller | 2008-10-30 21:18:13 +0100 (Do, 30 Okt 2008) | 2 lines Fixed a modulefinder crash on certain relative imports. ........
1 parent b74777e
bitset.c
/* Bitset primitives used by the parser generator */
#include "pgenheaders.h"
#include "bitset.h"
bitset
newbitset(int nbits)
{
int nbytes = NBYTES(nbits);
bitset ss = (char *)PyObject_MALLOC(sizeof(BYTE) * nbytes);
if (ss == NULL)
Py_FatalError("no mem for bitset");
ss += nbytes;
while (--nbytes >= 0)
*--ss = 0;
return ss;
}
void
delbitset(bitset ss)
{
PyObject_FREE(ss);
}
int
addbit(bitset ss, int ibit)
{
int ibyte = BIT2BYTE(ibit);
BYTE mask = BIT2MASK(ibit);
if (ss[ibyte] & mask)
return 0; /* Bit already set */
ss[ibyte] |= mask;
return 1;
}
#if 0 /* Now a macro */
int
testbit(bitset ss, int ibit)
{
return (ss[BIT2BYTE(ibit)] & BIT2MASK(ibit)) != 0;
}
#endif
int
samebitset(bitset ss1, bitset ss2, int nbits)
{
int i;
for (i = NBYTES(nbits); --i >= 0; )
if (*ss1++ != *ss2++)
return 0;
return 1;
}
void
mergebitset(bitset ss1, bitset ss2, int nbits)
{
int i;
for (i = NBYTES(nbits); --i >= 0; )
*ss1++ |= *ss2++;
}
Computing file changes ...