mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-07 15:03:34 +00:00
e16a7d8f3b
`et` means `expandtab`. ```sh rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\) et\(.*\) :vi/vi: \1 xoet\2:vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)noet\(.*\):vi/vi: \1et\2 :vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)xoet\(.*\):vi/vi: \1noet\2:vi/' ```
69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
|
|
│ vi: set et ft=c ts=4 sts=4 sw=4 fenc=utf-8 :vi │
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Python 3 │
|
|
│ https://docs.python.org/3/license.html │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "third_party/python/Include/bitset.h"
|
|
#include "third_party/python/Include/objimpl.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++;
|
|
}
|