harvey/sys/include/ape/limits.h

/*
 * This file is part of the UCB release of Plan 9. It is subject to the license
 * terms in the LICENSE file found in the top-level directory of this
 * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
 * part of the UCB release of Plan 9, including this file, may be copied,
 * modified, propagated, or distributed except according to the terms contained
 * in the LICENSE file.
 */

#ifndef __LIMITS
#define __LIMITS
/* 8 bit chars (signed), 16 bit shorts, 32 bit ints/longs */

#define CHAR_BIT	8
#define MB_LEN_MAX	4

#define UCHAR_MAX	0xff
#define USHRT_MAX	0xffff
#define UINT_MAX	0xffffffffU
#define ULONG_MAX	0xffffffffUL

#define CHAR_MAX	SCHAR_MAX
#define SCHAR_MAX	0x7f
#define SHRT_MAX	0x7fff
#define INT_MAX		0x7fffffff
#define LONG_MAX	0x7fffffffL

#define CHAR_MIN	SCHAR_MIN
#define SCHAR_MIN	(-SCHAR_MAX-1)
#define SHRT_MIN	(-SHRT_MAX-1)
#define INT_MIN		(-INT_MAX-1)
#define LONG_MIN	(-LONG_MAX-1)

#ifdef _POSIX_SOURCE

#define _POSIX_AIO_LISTIO_MAX	2
#define _POSIX_AIO_MAX			1
#define _POSIX_ARG_MAX			4096
#define _POSIX_CHILD_MAX		6
#define	_POSIX_CLOCKRES_MIN		20000000
#define	_POSIX_DELAYTIMER_MAX	32
#define _POSIX_LINK_MAX			8
#define _POSIX_MAX_CANON		255
#define _POSIX_MAX_INPUT		255
#define _POSIX_MQ_OPEN_MAX		8
#define	_POSIX_MQ_PRIO_MAX		32
#define _POSIX_NAME_MAX			14
#define _POSIX_NGROUPS_MAX		0
#define _POSIX_OPEN_MAX			16
#define _POSIX_PATH_MAX			255
#define _POSIX_PIPE_BUF			512
#define	_POSIX_RTSIG_MAX		8
#define	_POSIX_SEM_NSEMS_MAX	256
#define	_POSIX_SEM_VALUE_MAX	32767
#define	_POSIX_SIGQUEUE_MAX		32
#define _POSIX_SSIZE_MAX		32767
#define _POSIX_STREAM_MAX		8
#define	_POSIX_TIMER_MAX		32
#define _POSIX_TZNAME_MAX		3


/* pedagogy: those that standard allows omitting are commented out */
/*#define AIO_LIST_MAX _POSIX_AIO_LIST_MAX */
/*#define AIO_MAX _POSIX_AIO_MAX */
/*#define AIO_PRIO_DELTA_MAX 0 */
/*#define ARG_MAX _POSIX_ARG_MAX */
/*#define CHILD_MAX _POSIX_CHILD_MAX */
/*#define DELAYTIMER_MAX _POSIX_DELAYTIMER_MAX */
/*#define LINK_MAX _POSIX_LINK_MAX */
/*#define MAX_CANON _POSIX_MAX_CANON */
/*#define MAX_INPUT _POSIX_MAX_INPUT */
/*#define MQ_OPEN_MAX _POSIX_MQ_OPEN_MAX */
/*#define MQ_PRIO_MAX _POSIX_MQ_PRIO_MAX */
/*#define NAME_MAX _POSIX_NAME_MAX */
#define NGROUPS_MAX 10
/*#define OPEN_MAX _POSIX_OPEN_MAX */
/*#define PAGESIZE 1 */
#define PASS_MAX	64
/*#define PATH_MAX _POSIX_PATH_MAX */
/*#define PIPE_BUF _POSIX_PIPE_BUF */
/*#define RTSIG_MAX _POSIX_RTSIG_MAX */
/*#define SEM_NSEMS_MAX _POSIX_SEM_NSEMS_MAX */
/*#define SEM_VALUE_MAX _POSIX_SEM_VALUE_MAX */
/*#define SIGQUEUE_MAX _POSIX_SIGQUEUE_MAX */
#define SSIZE_MAX LONG_MAX
/*#define STREAM_MAX _POSIX_STREAM_MAX */
/*#define TIMER_MAX _POSIX_TIMER_MAX */
#define TZNAME_MAX _POSIX_TZNAME_MAX

#ifdef _LIMITS_EXTENSION
/* some things are just too big for pedagogy (X!) */
#include <sys/limits.h>
#endif
#endif /* _POSIX_SOURCE */

#endif /* __LIMITS */