include/sys/param.h

   1 #ifndef _SYS_PARAM_H
   2 #define _SYS_PARAM_H
   3
   4 #define MAXSYMLINKS 20
   5 #define MAXHOSTNAMELEN 64
   6 #define MAXNAMLEN 255
   7 #define MAXPATHLEN 4096
   8 #define NBBY 8
   9 #define NGROUPS 32
  10 #define CANBSIZE 255
  11 #define NOFILE 256
  12 #define NCARGS 131072
  13 #define DEV_BSIZE 512
  14 #define NOGROUP (-1)
  15
  16 #undef MIN
  17 #undef MAX
  18 #define MIN(a,b) (((a)<(b))?(a):(b))
  19 #define MAX(a,b) (((a)>(b))?(a):(b))
  20
  21 #define __bitop(x,i,o) ((x)[(i)/8] o (1<<(i)%8))
  22 #define setbit(x,i) __bitop(x,i,|=)
  23 #define clrbit(x,i) __bitop(x,i,&=~)
  24 #define isset(x,i) __bitop(x,i,&)
  25 #define isclr(x,i) !isset(x,i)
  26
  27 #define howmany(n,d) (((n)+((d)-1))/(d))
  28 #define roundup(n,d) (howmany(n,d)*(d))
  29 #define powerof2(n) !(((n)-1) & (n))
  30
  31 #include <sys/resource.h>
  32 #include <endian.h>
  33 #include <limits.h>
  34
  35 #endif