[thirdparty/xfsprogs-dev.git] / db / bit.h

/*
 * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
 * All Rights Reserved.
 *
 * 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.
 *
 * This program is distributed in the hope that it would 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 the Free Software Foundation,
 * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#define	bitize(s)	((s) * NBBY)
#define	bitsz(t)	bitize(sizeof(t))
#define	bitszof(x,y)	bitize(szof(x,y))
#define	byteize(s)	((s) / NBBY)
#define	bitoffs(s)	((s) % NBBY)
#define	byteize_up(s)	(((s) + NBBY - 1) / NBBY)

#define	BVUNSIGNED	0
#define	BVSIGNED	1

extern int64_t		getbitval(void *obj, int bitoff, int nbits, int flags);
extern void		setbitval(void *obuf, int bitoff, int nbits, void *ibuf);
extern int		getbit_l(char *ptr, int bit);
extern void		setbit_l(char *ptr, int bit, int val);
Commit	Line	Data
2bd0ea18	1	/*
da23017d NS	2	* Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
da23017d NS	3	* All Rights Reserved.
dfc130f3	4	*
da23017d NS	5	* This program is free software; you can redistribute it and/or
da23017d NS	6	* modify it under the terms of the GNU General Public License as
2bd0ea18	7	* published by the Free Software Foundation.
dfc130f3	8	*
da23017d NS	9	* This program is distributed in the hope that it would be useful,
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	* GNU General Public License for more details.
dfc130f3	13	*
da23017d NS	14	* You should have received a copy of the GNU General Public License
	15	* along with this program; if not, write the Free Software Foundation,
	16	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
2bd0ea18 NS	17	*/
	18
	19	#define bitize(s) ((s) * NBBY)
	20	#define bitsz(t) bitize(sizeof(t))
	21	#define bitszof(x,y) bitize(szof(x,y))
	22	#define byteize(s) ((s) / NBBY)
	23	#define bitoffs(s) ((s) % NBBY)
984af2e1	24	#define byteize_up(s) (((s) + NBBY - 1) / NBBY)
2bd0ea18 NS	25
	26	#define BVUNSIGNED 0
	27	#define BVSIGNED 1
	28
14f8b681	29	extern int64_t getbitval(void *obj, int bitoff, int nbits, int flags);
984af2e1 DW	30	extern void setbitval(void obuf, int bitoff, int nbits, void ibuf);
	31	extern int getbit_l(char *ptr, int bit);
	32	extern void setbit_l(char *ptr, int bit, int val);