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Diffstat (limited to 'nx-X11/include/extensions/xtrapbits.h')
-rw-r--r-- | nx-X11/include/extensions/xtrapbits.h | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/nx-X11/include/extensions/xtrapbits.h b/nx-X11/include/extensions/xtrapbits.h deleted file mode 100644 index 1189dc7d3..000000000 --- a/nx-X11/include/extensions/xtrapbits.h +++ /dev/null @@ -1,83 +0,0 @@ -/* $XFree86$ */ -/* - * This include file is designed to be a portable way for systems to define - * bit field manipulation of arrays of bits. - */ -#ifndef __XTRAPBITS__ -#define __XTRAPBITS__ "@(#)xtrapbits.h 1.6 - 90/09/18 " - -/***************************************************************************** -Copyright 1987, 1988, 1989, 1990, 1994 by Digital Equipment Corporation, -Maynard, MA - -Permission to use, copy, modify, and distribute this software and its -documentation for any purpose and without fee is hereby granted, -provided that the above copyright notice appear in all copies and that -both that copyright notice and this permission notice appear in -supporting documentation, and that the name of Digital not be -used in advertising or publicity pertaining to distribution of the -software without specific, written prior permission. - -DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING -ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL -DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR -ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS -SOFTWARE. - -*****************************************************************************/ -/* - * - * CONTRIBUTORS: - * - * Dick Annicchiarico - * Robert Chesler - * Dan Coutu - * Gene Durso - * Marc Evans - * Alan Jamison - * Mark Henry - * Ken Miller - * - */ -typedef unsigned char *UByteP; /* Pointer to an unsigned byte array */ -#define BitsInByte 8L /* The number of bits in a byte */ - -#define BitInByte(bit) /* Returns the bit mask of a byte */ \ - (1L << (((bit) % BitsInByte))) - -#define BitInWord(bit) /* Returns the bit mask of a word */ \ - (1L << (((bit) % (BitsInByte * 2L)))) - -#define BitInLong(bit) /* Returns the bit mask of a long */ \ - (1L << (((bit) % (BitsInByte * 4L)))) - -#define ByteInArray(array,bit) /* Returns the byte offset to get to a bit */ \ - (((UByteP)(array))[(bit) / BitsInByte]) - -#define BitIsTrue(array,bit) /* Test to see if a specific bit is True */ \ - (ByteInArray(array,bit) & BitInByte(bit)) - -#define BitIsFalse(array,bit) /* Test to see if a specific bit is False */ \ - (!(BitIsTrue(array,bit))) - -#define BitTrue(array,bit) /* Set a specific bit to be True */ \ - (ByteInArray(array,bit) |= BitInByte(bit)) - -#define BitFalse(array,bit) /* Set a specific bit to be False */ \ - (ByteInArray(array,bit) &= ~BitInByte(bit)) - -#define BitToggle(array,bit) /* Toggle a specific bit */ \ - (ByteInArray(array,bit) ^= BitInByte(bit)) - -#define BitCopy(dest,src,bit) /* Copy a specific bit */ \ - BitIsTrue((src),(bit)) ? BitTrue((dest),(bit)) : BitFalse((dest),(bit)) - -#define BitValue(array,bit) /* Return True or False depending on bit */ \ - (BitIsTrue((array),(bit)) ? True : False) - -#define BitSet(array,bit,value) /* Set bit to given value in array */ \ - (value) ? BitTrue((array),(bit)) : BitFalse((array),(bit)) - -#endif /* __XTRAPBITS__ */ |