sysdeps/unix/sysv/sysv4/solaris2/sys/param.h

   1 /* Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #ifndef _SYS_PARAM_H
  20 #define _SYS_PARAM_H    1
  21
  22 #include <limits.h>
  23
  24 /* BSD names for some <limits.h> values.  */
  25
  26 #define NBBY            CHAR_BIT
  27 #ifndef NGROUPS
  28 # define NGROUPS                NGROUPS_MAX
  29 #endif
  30 #define MAXSYMLINKS     5
  31 #define CANBSIZ         MAX_CANON
  32 #define NCARGS          ARG_MAX
  33 #define MAXPATHLEN      PATH_MAX
  34 #define NOFILE          OPEN_MAX
  35
  36
  37 #include <sys/types.h>
  38
  39 /* Bit map related macros.  */
  40 #define setbit(a,i)     ((a)[(i)/NBBY] |= 1<<((i)%NBBY))
  41 #define clrbit(a,i)     ((a)[(i)/NBBY] &= ~(1<<((i)%NBBY)))
  42 #define isset(a,i)      ((a)[(i)/NBBY] & (1<<((i)%NBBY)))
  43 #define isclr(a,i)      (((a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0)
  44
  45 /* Macros for counting and rounding.  */
  46 #ifndef howmany
  47 # define howmany(x, y)  (((x)+((y)-1))/(y))
  48 #endif
  49 #define roundup(x, y)   ((((x)+((y)-1))/(y))*(y))
  50 #define powerof2(x)     ((((x)-1)&(x))==0)
  51
  52 /* Macros for min/max.  */
  53 #define MIN(a,b) (((a)<(b))?(a):(b))
  54 #define MAX(a,b) (((a)>(b))?(a):(b))
  55
  56 /* Unit of `st_blocks'.  */
  57 #define DEV_BSIZE       512
  58
  59 #endif  /* sys/param.h */