db/bit.h

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
   4  * All Rights Reserved.
   5  */
   6
   7 #define bitize(s)       ((s) * NBBY)
   8 #define bitsz(t)        bitize(sizeof(t))
   9 #define bitszof(x,y)    bitize(szof(x,y))
  10 #define byteize(s)      ((s) / NBBY)
  11 #define bitoffs(s)      ((s) % NBBY)
  12 #define byteize_up(s)   (((s) + NBBY - 1) / NBBY)
  13
  14 #define BVUNSIGNED      0
  15 #define BVSIGNED        1
  16
  17 extern int64_t          getbitval(void *obj, int bitoff, int nbits, int flags);
  18 extern void             setbitval(void *obuf, int bitoff, int nbits, void *ibuf);
  19 extern int              getbit_l(char *ptr, int bit);
  20 extern void             setbit_l(char *ptr, int bit, int val);