diff options
Diffstat (limited to 'lib/bitops.h')
-rw-r--r-- | lib/bitops.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/lib/bitops.h b/lib/bitops.h new file mode 100644 index 0000000..187fa91 --- /dev/null +++ b/lib/bitops.h @@ -0,0 +1,30 @@ +/* bitops.h -- defs for interface to bitops.c, plus bit-vector macros + Copyright (C) 1986, 1995, 1996 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef _bitops_h_ +#define _bitops_h_ + +#define BITTST(ba, bn) ((ba)[(bn) >> 3] & (1 << ((bn) & 0x07))) +#define BITSET(ba, bn) ((ba)[(bn) >> 3] |= (1 << ((bn) & 0x07))) +#define BITCLR(ba, bn) ((ba)[(bn) >> 3] &=~(1 << ((bn) & 0x07))) +#define BITAND(ba, bn) ((ba)[(bn) >> 3] &= (1 << ((bn) & 0x07))) +#define BITXOR(ba, bn) ((ba)[(bn) >> 3] ^= (1 << ((bn) & 0x07))) + +int vec_to_bits __P((char *bit_array, char *vec, int size)); +int bits_to_vec __P((char *vec, char *bit_array, int bit_count, int size)); + +#endif /* not _bitops_h_ */ |