diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/sys/param.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/sys/param.h | 40 |
1 files changed, 29 insertions, 11 deletions
diff --git a/sysdeps/unix/sysv/linux/sys/param.h b/sysdeps/unix/sysv/linux/sys/param.h index a2d4984166..4950d58d38 100644 --- a/sysdeps/unix/sysv/linux/sys/param.h +++ b/sysdeps/unix/sysv/linux/sys/param.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1995 Free Software Foundation, Inc. +/* Copyright (C) 1995, 1996 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -23,23 +23,41 @@ Boston, MA 02111-1307, USA. */ #include <linux/limits.h> #include <linux/param.h> +/* BSD names for some <limits.h> values. */ + +#define NBBY CHAR_BIT +#ifndef NGROUPS +#define NGROUPS NGROUPS_MAX +#endif +#define MAXSYMLINKS SYMLOOP_MAX +#define CANBSIZ MAX_CANON +#define NCARGS ARG_MAX +#define MAXPATHLEN PATH_MAX +#define NOFILE OPEN_MAX + + #include <sys/types.h> +/* Bit map related macros. */ +#define setbit(a,i) ((a)[(i)/NBBY] |= 1<<((i)%NBBY)) +#define clrbit(a,i) ((a)[(i)/NBBY] &= ~(1<<((i)%NBBY))) +#define isset(a,i) ((a)[(i)/NBBY] & (1<<((i)%NBBY))) +#define isclr(a,i) (((a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0) +/* Macros for counting and rounding. */ #ifndef howmany -# define howmany(x, y) (((x)+((y)-1))/(y)) +#define howmany(x, y) (((x)+((y)-1))/(y)) #endif +#define roundup(x, y) ((((x)+((y)-1))/(y))*(y)) +#define powerof2(x) ((((x)-1)&(x))==0) -#ifndef roundup -# define roundup(x, y) ((((x)+((y)-1))/(y))*(y)) -#endif +/* Macros for min/max. */ +#define MIN(a,b) (((a)<(b))?(a):(b)) +#define MAX(a,b) (((a)>(b))?(a):(b)) -#define MAXPATHLEN PATH_MAX -#define NOFILE OPEN_MAX -/* Following the information of some of the kernel people I here assume - that block size (i.e. the value of stat.st_blocks) for all filesystem - is 512 bytes. If not tell HJ, Roland, or me. -- drepper */ +/* Unit of `st_blocks'. */ #define DEV_BSIZE 512 -#endif + +#endif /* sys/param.h */ |