diff options
author | cvs2svn <cvs2svn@FreeBSD.org> | 2005-06-14 02:23:15 +0000 |
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committer | cvs2svn <cvs2svn@FreeBSD.org> | 2005-06-14 02:23:15 +0000 |
commit | a3949f0034fc918cf70aad34a7a26fc5dbe25af2 (patch) | |
tree | 478650075bb5f29f06f2042ebbbcf9f386e2bff5 /contrib/sendmail/include/sm/bitops.h | |
parent | 0c97652c0b3dbc161167bac72bd860ec7d0f48ab (diff) |
Notes
Diffstat (limited to 'contrib/sendmail/include/sm/bitops.h')
-rw-r--r-- | contrib/sendmail/include/sm/bitops.h | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/contrib/sendmail/include/sm/bitops.h b/contrib/sendmail/include/sm/bitops.h deleted file mode 100644 index 44778ba8b2b81..0000000000000 --- a/contrib/sendmail/include/sm/bitops.h +++ /dev/null @@ -1,57 +0,0 @@ -/* - * Copyright (c) 1998-2001 Sendmail, Inc. and its suppliers. - * All rights reserved. - * Copyright (c) 1983, 1995-1997 Eric P. Allman. All rights reserved. - * Copyright (c) 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * By using this file, you agree to the terms and conditions set - * forth in the LICENSE file which can be found at the top level of - * the sendmail distribution. - * - * - * $Id: bitops.h,v 1.2 2001/09/22 22:05:42 ca Exp $ - */ - -#ifndef SM_BITOPS_H -# define SM_BITOPS_H - -/* -** Data structure for bit maps. -** -** Each bit in this map can be referenced by an ascii character. -** This is 256 possible bits, or 32 8-bit bytes. -*/ - -# define BITMAPBITS 256 /* number of bits in a bit map */ -# define BYTEBITS 8 /* number of bits in a byte */ -# define BITMAPBYTES (BITMAPBITS / BYTEBITS) /* number of bytes in bit map */ -# define BITMAPMAX ((BITMAPBYTES / sizeof (int)) - 1) - -/* internal macros */ - -/* make sure this index never leaves the allowed range: 0 to BITMAPMAX */ -# define _BITWORD(bit) (((unsigned char)(bit) / (BYTEBITS * sizeof (int))) & BITMAPMAX) -# define _BITBIT(bit) ((unsigned int)1 << ((unsigned char)(bit) % (BYTEBITS * sizeof (int)))) - -typedef unsigned int BITMAP256[BITMAPBYTES / sizeof (int)]; - -/* properly case and truncate bit */ -# define bitidx(bit) ((unsigned int) (bit) & 0xff) - -/* test bit number N */ -# define bitnset(bit, map) ((map)[_BITWORD(bit)] & _BITBIT(bit)) - -/* set bit number N */ -# define setbitn(bit, map) (map)[_BITWORD(bit)] |= _BITBIT(bit) - -/* clear bit number N */ -# define clrbitn(bit, map) (map)[_BITWORD(bit)] &= ~_BITBIT(bit) - -/* clear an entire bit map */ -# define clrbitmap(map) memset((char *) map, '\0', BITMAPBYTES) - -/* bit hacking */ -# define bitset(bit, word) (((word) & (bit)) != 0) - -#endif /* ! SM_BITOPS_H */ |