usr/src/head/limits.h - illumos-gate - Gitiles

 /*
  * CDDL HEADER START
  *
  * The contents of this file are subject to the terms of the
  * Common Development and Distribution License (the "License").
  * You may not use this file except in compliance with the License.
  *
  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  * or http://www.opensolaris.org/os/licensing.
  * See the License for the specific language governing permissions
  * and limitations under the License.
  *
  * When distributing Covered Code, include this CDDL HEADER in each
  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  * If applicable, add the following below this CDDL HEADER, with the
  * fields enclosed by brackets "[]" replaced with your own identifying
  * information: Portions Copyright [yyyy] [name of copyright owner]
  *
  * CDDL HEADER END
  */

 /*
  * Copyright (c) 2013 Gary Mills
  * Copyright 2017 RackTop Systems.
  *
  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */

 /*	Copyright (c) 1988 AT&T	*/
 /*	  All Rights Reserved	*/


 #ifndef _LIMITS_H
 #define	_LIMITS_H

 #include <sys/feature_tests.h>
 #include <sys/isa_defs.h>
 #include <iso/limits_iso.h>

 /*
  * Include fixed width type limits as proposed by the ISO/JTC1/SC22/WG14 C
  * committee's working draft for the revision of the current ISO C standard,
  * ISO/IEC 9899:1990 Programming language - C.  These are not currently
  * required by any standard but constitute a useful, general purpose set
  * of type definitions and limits which is namespace clean with respect to
  * all standards.
  */
 #if defined(__EXTENSIONS__) || !defined(_STRICT_STDC) || \
 	defined(__XOPEN_OR_POSIX)
 #include <sys/int_limits.h>
 #endif

 #ifdef	__cplusplus
 extern "C" {
 #endif

 #if defined(__EXTENSIONS__) || !defined(_STRICT_STDC) || \
 	defined(__XOPEN_OR_POSIX)

 #define	SSIZE_MAX	LONG_MAX	/* max value of an "ssize_t" */

 /*
  * ARG_MAX is calculated as follows:
  * NCARGS - space for other stuff on initial stack
  * like aux vectors, saved registers, etc..
  */
 #define	_ARG_MAX32	1048320	/* max length of args to exec 32-bit program */
 #define	_ARG_MAX64	2096640	/* max length of args to exec 64-bit program */
 #ifdef	_LP64
 #define	ARG_MAX		_ARG_MAX64	/* max length of arguments to exec */
 #else	/* _LP64 */
 #define	ARG_MAX		_ARG_MAX32	/* max length of arguments to exec */
 #endif	/* _LP64 */


 /*
  * These two symbols have their historical values, the actual buffer is
  * larger.
  */
 #ifndef MAX_CANON
 #define	MAX_CANON	256	/* max bytes in line for canonical processing */
 #endif

 #ifndef MAX_INPUT
 #define	MAX_INPUT	512	/* max size of a char input buffer */
 #endif

 #define	NGROUPS_MAX	16	/* max number of groups for a user */

 #ifndef PATH_MAX
 #define	PATH_MAX	1024	/* max # of characters in a path name */
 #endif

 #define	SYMLINK_MAX	1024	/* max # of characters a symlink can contain */

 #define	PIPE_BUF	5120	/* max # bytes atomic in write to a pipe */

 #ifndef TMP_MAX
 #define	TMP_MAX		17576	/* 26 * 26 * 26 */
 #endif

 /*
  * POSIX conformant definitions - An implementation may define
  * other symbols which reflect the actual implementation. Alternate
  * definitions may not be as restrictive as the POSIX definitions.
  */
 #define	_POSIX_AIO_LISTIO_MAX	    2
 #define	_POSIX_AIO_MAX		    1
 #define	_POSIX_ARG_MAX		 4096
 #ifdef _XPG6
 #define	_POSIX_CHILD_MAX	   25
 #else
 #define	_POSIX_CHILD_MAX	    6	/* POSIX.1-1990 default */
 #endif
 #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
 #ifdef _XPG6
 #define	_POSIX_NGROUPS_MAX	    8
 #define	_POSIX_OPEN_MAX		   20
 #define	_POSIX_PATH_MAX		  256
 #else					/* POSIX.1-1990 defaults */
 #define	_POSIX_NGROUPS_MAX	    0
 #define	_POSIX_OPEN_MAX		   16
 #define	_POSIX_PATH_MAX		  255
 #endif
 #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
 #ifdef _XPG6
 #define	_POSIX_TZNAME_MAX	    6
 #else
 #define	_POSIX_TZNAME_MAX	    3	/* POSIX.1-1990 default */
 #endif
 /* POSIX.1c conformant */
 #define	_POSIX_LOGIN_NAME_MAX			9
 #define	_POSIX_THREAD_DESTRUCTOR_ITERATIONS	4
 #define	_POSIX_THREAD_KEYS_MAX			128
 #define	_POSIX_THREAD_THREADS_MAX		64
 #define	_POSIX_TTY_NAME_MAX			9
 /* UNIX 03 conformant */
 #define	_POSIX_HOST_NAME_MAX			255
 #define	_POSIX_RE_DUP_MAX			255
 #define	_POSIX_SYMLINK_MAX			255
 #define	_POSIX_SYMLOOP_MAX			8

 /*
  * POSIX.2 and XPG4-XSH4 conformant definitions
  */

 #define	_POSIX2_BC_BASE_MAX		  99
 #define	_POSIX2_BC_DIM_MAX		2048
 #define	_POSIX2_BC_SCALE_MAX		  99
 #define	_POSIX2_BC_STRING_MAX		1000
 #define	_POSIX2_COLL_WEIGHTS_MAX	   2
 #define	_POSIX2_EXPR_NEST_MAX		  32
 #define	_POSIX2_LINE_MAX		2048
 #define	_POSIX2_RE_DUP_MAX		 255
 /* UNIX 03 conformant */
 #define	_POSIX2_CHARCLASS_NAME_MAX	  14

 #define	BC_BASE_MAX		_POSIX2_BC_BASE_MAX
 #define	BC_DIM_MAX		_POSIX2_BC_DIM_MAX
 #define	BC_SCALE_MAX		_POSIX2_BC_SCALE_MAX
 #define	BC_STRING_MAX		_POSIX2_BC_STRING_MAX
 #define	COLL_WEIGHTS_MAX	10
 #define	EXPR_NEST_MAX		_POSIX2_EXPR_NEST_MAX
 #define	LINE_MAX		_POSIX2_LINE_MAX
 #if !defined(_XPG6)
 #define	RE_DUP_MAX		_POSIX2_RE_DUP_MAX
 #else
 #define	RE_DUP_MAX		_POSIX_RE_DUP_MAX
 #endif /* !defined(_XPG6) */

 #endif /* defined(__EXTENSIONS__) || !defined(_STRICT_STDC) ... */

 #if defined(__EXTENSIONS__) || \
 	(!defined(_STRICT_STDC) && !defined(_POSIX_C_SOURCE)) || \
 	defined(_XOPEN_SOURCE)

 /*
  * For dual definitions for PASS_MAX and sysconf.c
  */
 #define	_PASS_MAX_XPG	8	/* old standards PASS_MAX */
 #define	_PASS_MAX	256	/* modern Solaris PASS_MAX */

 #if defined(_XPG3) && !defined(_XPG6)
 #define	PASS_MAX	_PASS_MAX_XPG	/* max # of characters in a password */
 #else	/* XPG6 or just Solaris */
 #define	PASS_MAX	_PASS_MAX	/* max # of characters in a password */
 #endif	/* defined(_XPG3) && !defined(_XPG6) */

 #define	CHARCLASS_NAME_MAX	_POSIX2_CHARCLASS_NAME_MAX

 #define	NL_ARGMAX	9	/* max value of "digit" in calls to the	*/
 				/* NLS printf() and scanf() */
 #define	NL_LANGMAX	14	/* max # of bytes in a LANG name */
 #define	NL_MSGMAX	32767	/* max message number */
 #define	NL_NMAX		1	/* max # bytes in N-to-1 mapping characters */
 #define	NL_SETMAX	255	/* max set number */
 #define	NL_TEXTMAX	2048	/* max set number */
 #define	NZERO		20	/* default process priority */

 #define	WORD_BIT	32	/* # of bits in a "word" or "int" */
 #if defined(_LP64)
 #define	LONG_BIT	64	/* # of bits in a "long" */
 #else	/* _ILP32 */
 #define	LONG_BIT	32	/* # of bits in a "long" */
 #endif

 /* Marked as LEGACY in SUSv2 and removed in UNIX 03 */
 #ifndef _XPG6
 #define	DBL_DIG		15	/* digits of precision of a "double" */
 #define	DBL_MAX		1.7976931348623157081452E+308	/* max decimal value */
 							/* of a double */
 #define	FLT_DIG		6		/* digits of precision of a "float" */
 #define	FLT_MAX		3.4028234663852885981170E+38F	/* max decimal value */
 							/* of a "float" */
 #endif

 /* Marked as LEGACY in SUSv1 and removed in SUSv2 */
 #ifndef _XPG5
 #define	DBL_MIN		2.2250738585072013830903E-308	/* min decimal value */
 							/* of a double */
 #define	FLT_MIN		1.1754943508222875079688E-38F	/* min decimal value */
 							/* of a float */
 #endif

 #endif	/* defined(__EXTENSIONS__) || (!defined(_STRICT_STDC) ... */

 #define	_XOPEN_IOV_MAX	16	/* max # iovec/process with readv()/writev() */
 #define	_XOPEN_NAME_MAX	255	/* max # bytes in filename excluding null */
 #define	_XOPEN_PATH_MAX	1024	/* max # bytes in a pathname */

 #define	IOV_MAX		_XOPEN_IOV_MAX

 #if defined(__EXTENSIONS__) || \
 	(!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX))

 #define	FCHR_MAX	1048576		/* max size of a file in bytes */
 #define	PID_MAX		999999		/* max value for a process ID */

 /*
  * POSIX 1003.1a, section 2.9.5, table 2-5 contains [NAME_MAX] and the
  * related text states:
  *
  * A definition of one of the values from Table 2-5 shall be omitted from the
  * <limits.h> on specific implementations where the corresponding value is
  * equal to or greater than the stated minimum, but where the value can vary
  * depending on the file to which it is applied. The actual value supported for
  * a specific pathname shall be provided by the pathconf() (5.7.1) function.
  *
  * This is clear that any machine supporting multiple file system types
  * and/or a network should not include this define, regardless of protection
  * by the _POSIX_SOURCE and _POSIX_C_SOURCE flags. We chose to ignore that
  * and provide it anyway for compatibility with other platforms that don't
  * follow the spec as precisely as they should. Its usage is discouraged.
  */
 #define	NAME_MAX	255

 #define	CHILD_MAX	25	/* max # of processes per user id */
 #ifndef OPEN_MAX
 #define	OPEN_MAX	256	/* max # of files a process can have open */
 #endif

 #define	PIPE_MAX	5120	/* max # bytes written to a pipe in a write */

 #define	STD_BLK		1024	/* # bytes in a physical I/O block */
 #define	UID_MAX		2147483647	/* max value for a user or group ID */
 #define	USI_MAX		4294967295	/* max decimal value of an "unsigned" */
 #define	SYSPID_MAX	1	/* max pid of system processes */

 #ifndef SYS_NMLN		/* also defined in sys/utsname.h */
 #define	SYS_NMLN	257	/* 4.0 size of utsname elements */
 #endif

 #ifndef CLK_TCK

 #if !defined(_CLOCK_T) || __cplusplus >= 199711L
 #define	_CLOCK_T
 typedef long	clock_t;
 #endif	/* !_CLOCK_T */

 extern long _sysconf(int);	/* System Private interface to sysconf() */
 #define	CLK_TCK	((clock_t)_sysconf(3))	/* 3 is _SC_CLK_TCK */

 #endif /* CLK_TCK */

 #ifdef	__USE_LEGACY_LOGNAME__
 #define	LOGNAME_MAX	8	/* max # of characters in a login name */
 #else	/* __USE_LEGACY_LOGNAME__ */
 #define	LOGNAME_MAX	32	/* max # of characters in a login name */
 				/* Increased for illumos */
 #endif	/* __USE_LEGACY_LOGNAME__ */
 #define	LOGIN_NAME_MAX	(LOGNAME_MAX + 1)	/* max buffer size */
 #define	LOGNAME_MAX_TRAD	8		/* traditional length */
 #define	LOGIN_NAME_MAX_TRAD	(LOGNAME_MAX_TRAD + 1)	/* and size */

 #define	TTYNAME_MAX	128	/* max # of characters in a tty name */

 #endif	/* if defined(__EXTENSIONS__) || (!defined(_STRICT_STDC) ... */

 #if	defined(__EXTENSIONS__) || (_POSIX_C_SOURCE >= 199506L)
 #include <sys/unistd.h>

 #if !defined(_SIZE_T) || __cplusplus >= 199711L
 #define	_SIZE_T
 #if defined(_LP64) || defined(_I32LPx)
 typedef	unsigned long size_t;	/* size of something in bytes */
 #else
 typedef	unsigned int  size_t;	/* (historical version) */
 #endif
 #endif	/* _SIZE_T */

 extern long _sysconf(int);	/* System Private interface to sysconf() */

 #define	PTHREAD_STACK_MIN	((size_t)_sysconf(_SC_THREAD_STACK_MIN))
 /* Added for UNIX98 conformance */
 #define	PTHREAD_DESTRUCTOR_ITERATIONS	_POSIX_THREAD_DESTRUCTOR_ITERATIONS
 #define	PTHREAD_KEYS_MAX		_POSIX_THREAD_KEYS_MAX
 #define	PTHREAD_THREADS_MAX		_POSIX_THREAD_THREADS_MAX
 #endif	/* defined(__EXTENSIONS__) || (_POSIX_C_SOURCE >= 199506L) */

 #ifdef	__cplusplus
 }
 #endif

 #endif	/* _LIMITS_H */
	/*
	* CDDL HEADER START
	*
	* The contents of this file are subject to the terms of the
	* Common Development and Distribution License (the "License").
	* You may not use this file except in compliance with the License.
	*
	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	* or http://www.opensolaris.org/os/licensing.
	* See the License for the specific language governing permissions
	* and limitations under the License.
	*
	* When distributing Covered Code, include this CDDL HEADER in each
	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	* If applicable, add the following below this CDDL HEADER, with the
	* fields enclosed by brackets "[]" replaced with your own identifying
	* information: Portions Copyright [yyyy] [name of copyright owner]
	*
	* CDDL HEADER END
	*/

	/*
	* Copyright (c) 2013 Gary Mills
	* Copyright 2017 RackTop Systems.
	*
	* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
	* Use is subject to license terms.
	*/

	/* Copyright (c) 1988 AT&T */
	/* All Rights Reserved */


	#ifndef _LIMITS_H
	#define _LIMITS_H

	#include <sys/feature_tests.h>
	#include <sys/isa_defs.h>
	#include <iso/limits_iso.h>

	/*
	* Include fixed width type limits as proposed by the ISO/JTC1/SC22/WG14 C
	* committee's working draft for the revision of the current ISO C standard,
	* ISO/IEC 9899:1990 Programming language - C. These are not currently
	* required by any standard but constitute a useful, general purpose set
	* of type definitions and limits which is namespace clean with respect to
	* all standards.
	*/
	#if defined(__EXTENSIONS__) \|\| !defined(_STRICT_STDC) \|\| \
	defined(__XOPEN_OR_POSIX)
	#include <sys/int_limits.h>
	#endif

	#ifdef __cplusplus
	extern "C" {
	#endif

	#if defined(__EXTENSIONS__) \|\| !defined(_STRICT_STDC) \|\| \
	defined(__XOPEN_OR_POSIX)

	#define SSIZE_MAX LONG_MAX /* max value of an "ssize_t" */

	/*
	* ARG_MAX is calculated as follows:
	* NCARGS - space for other stuff on initial stack
	* like aux vectors, saved registers, etc..
	*/
	#define _ARG_MAX32 1048320 /* max length of args to exec 32-bit program */
	#define _ARG_MAX64 2096640 /* max length of args to exec 64-bit program */
	#ifdef _LP64
	#define ARG_MAX _ARG_MAX64 /* max length of arguments to exec */
	#else /* _LP64 */
	#define ARG_MAX _ARG_MAX32 /* max length of arguments to exec */
	#endif /* _LP64 */


	/*
	* These two symbols have their historical values, the actual buffer is
	* larger.
	*/
	#ifndef MAX_CANON
	#define MAX_CANON 256 /* max bytes in line for canonical processing */
	#endif

	#ifndef MAX_INPUT
	#define MAX_INPUT 512 /* max size of a char input buffer */
	#endif

	#define NGROUPS_MAX 16 /* max number of groups for a user */

	#ifndef PATH_MAX
	#define PATH_MAX 1024 /* max # of characters in a path name */
	#endif

	#define SYMLINK_MAX 1024 /* max # of characters a symlink can contain */

	#define PIPE_BUF 5120 /* max # bytes atomic in write to a pipe */

	#ifndef TMP_MAX
	#define TMP_MAX 17576 /* 26 * 26 * 26 */
	#endif

	/*
	* POSIX conformant definitions - An implementation may define
	* other symbols which reflect the actual implementation. Alternate
	* definitions may not be as restrictive as the POSIX definitions.
	*/
	#define _POSIX_AIO_LISTIO_MAX 2
	#define _POSIX_AIO_MAX 1
	#define _POSIX_ARG_MAX 4096
	#ifdef _XPG6
	#define _POSIX_CHILD_MAX 25
	#else
	#define _POSIX_CHILD_MAX 6 /* POSIX.1-1990 default */
	#endif
	#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
	#ifdef _XPG6
	#define _POSIX_NGROUPS_MAX 8
	#define _POSIX_OPEN_MAX 20
	#define _POSIX_PATH_MAX 256
	#else /* POSIX.1-1990 defaults */
	#define _POSIX_NGROUPS_MAX 0
	#define _POSIX_OPEN_MAX 16
	#define _POSIX_PATH_MAX 255
	#endif
	#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
	#ifdef _XPG6
	#define _POSIX_TZNAME_MAX 6
	#else
	#define _POSIX_TZNAME_MAX 3 /* POSIX.1-1990 default */
	#endif
	/* POSIX.1c conformant */
	#define _POSIX_LOGIN_NAME_MAX 9
	#define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4
	#define _POSIX_THREAD_KEYS_MAX 128
	#define _POSIX_THREAD_THREADS_MAX 64
	#define _POSIX_TTY_NAME_MAX 9
	/* UNIX 03 conformant */
	#define _POSIX_HOST_NAME_MAX 255
	#define _POSIX_RE_DUP_MAX 255
	#define _POSIX_SYMLINK_MAX 255
	#define _POSIX_SYMLOOP_MAX 8

	/*
	* POSIX.2 and XPG4-XSH4 conformant definitions
	*/

	#define _POSIX2_BC_BASE_MAX 99
	#define _POSIX2_BC_DIM_MAX 2048
	#define _POSIX2_BC_SCALE_MAX 99
	#define _POSIX2_BC_STRING_MAX 1000
	#define _POSIX2_COLL_WEIGHTS_MAX 2
	#define _POSIX2_EXPR_NEST_MAX 32
	#define _POSIX2_LINE_MAX 2048
	#define _POSIX2_RE_DUP_MAX 255
	/* UNIX 03 conformant */
	#define _POSIX2_CHARCLASS_NAME_MAX 14

	#define BC_BASE_MAX _POSIX2_BC_BASE_MAX
	#define BC_DIM_MAX _POSIX2_BC_DIM_MAX
	#define BC_SCALE_MAX _POSIX2_BC_SCALE_MAX
	#define BC_STRING_MAX _POSIX2_BC_STRING_MAX
	#define COLL_WEIGHTS_MAX 10
	#define EXPR_NEST_MAX _POSIX2_EXPR_NEST_MAX
	#define LINE_MAX _POSIX2_LINE_MAX
	#if !defined(_XPG6)
	#define RE_DUP_MAX _POSIX2_RE_DUP_MAX
	#else
	#define RE_DUP_MAX _POSIX_RE_DUP_MAX
	#endif /* !defined(_XPG6) */

	#endif /* defined(__EXTENSIONS__) \|\| !defined(_STRICT_STDC) ... */

	#if defined(__EXTENSIONS__) \|\| \
	(!defined(_STRICT_STDC) && !defined(_POSIX_C_SOURCE)) \|\| \
	defined(_XOPEN_SOURCE)

	/*
	* For dual definitions for PASS_MAX and sysconf.c
	*/
	#define _PASS_MAX_XPG 8 /* old standards PASS_MAX */
	#define _PASS_MAX 256 /* modern Solaris PASS_MAX */

	#if defined(_XPG3) && !defined(_XPG6)
	#define PASS_MAX _PASS_MAX_XPG /* max # of characters in a password */
	#else /* XPG6 or just Solaris */
	#define PASS_MAX _PASS_MAX /* max # of characters in a password */
	#endif /* defined(_XPG3) && !defined(_XPG6) */

	#define CHARCLASS_NAME_MAX _POSIX2_CHARCLASS_NAME_MAX

	#define NL_ARGMAX 9 /* max value of "digit" in calls to the */
	/* NLS printf() and scanf() */
	#define NL_LANGMAX 14 /* max # of bytes in a LANG name */
	#define NL_MSGMAX 32767 /* max message number */
	#define NL_NMAX 1 /* max # bytes in N-to-1 mapping characters */
	#define NL_SETMAX 255 /* max set number */
	#define NL_TEXTMAX 2048 /* max set number */
	#define NZERO 20 /* default process priority */

	#define WORD_BIT 32 /* # of bits in a "word" or "int" */
	#if defined(_LP64)
	#define LONG_BIT 64 /* # of bits in a "long" */
	#else /* _ILP32 */
	#define LONG_BIT 32 /* # of bits in a "long" */
	#endif

	/* Marked as LEGACY in SUSv2 and removed in UNIX 03 */
	#ifndef _XPG6
	#define DBL_DIG 15 /* digits of precision of a "double" */
	#define DBL_MAX 1.7976931348623157081452E+308 /* max decimal value */
	/* of a double */
	#define FLT_DIG 6 /* digits of precision of a "float" */
	#define FLT_MAX 3.4028234663852885981170E+38F /* max decimal value */
	/* of a "float" */
	#endif

	/* Marked as LEGACY in SUSv1 and removed in SUSv2 */
	#ifndef _XPG5
	#define DBL_MIN 2.2250738585072013830903E-308 /* min decimal value */
	/* of a double */
	#define FLT_MIN 1.1754943508222875079688E-38F /* min decimal value */
	/* of a float */
	#endif

	#endif /* defined(__EXTENSIONS__) \|\| (!defined(_STRICT_STDC) ... */

	#define _XOPEN_IOV_MAX 16 /* max # iovec/process with readv()/writev() */
	#define _XOPEN_NAME_MAX 255 /* max # bytes in filename excluding null */
	#define _XOPEN_PATH_MAX 1024 /* max # bytes in a pathname */

	#define IOV_MAX _XOPEN_IOV_MAX

	#if defined(__EXTENSIONS__) \|\| \
	(!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX))

	#define FCHR_MAX 1048576 /* max size of a file in bytes */
	#define PID_MAX 999999 /* max value for a process ID */

	/*
	* POSIX 1003.1a, section 2.9.5, table 2-5 contains [NAME_MAX] and the
	* related text states:
	*
	* A definition of one of the values from Table 2-5 shall be omitted from the
	* <limits.h> on specific implementations where the corresponding value is
	* equal to or greater than the stated minimum, but where the value can vary
	* depending on the file to which it is applied. The actual value supported for
	* a specific pathname shall be provided by the pathconf() (5.7.1) function.
	*
	* This is clear that any machine supporting multiple file system types
	* and/or a network should not include this define, regardless of protection
	* by the _POSIX_SOURCE and _POSIX_C_SOURCE flags. We chose to ignore that
	* and provide it anyway for compatibility with other platforms that don't
	* follow the spec as precisely as they should. Its usage is discouraged.
	*/
	#define NAME_MAX 255

	#define CHILD_MAX 25 /* max # of processes per user id */
	#ifndef OPEN_MAX
	#define OPEN_MAX 256 /* max # of files a process can have open */
	#endif

	#define PIPE_MAX 5120 /* max # bytes written to a pipe in a write */

	#define STD_BLK 1024 /* # bytes in a physical I/O block */
	#define UID_MAX 2147483647 /* max value for a user or group ID */
	#define USI_MAX 4294967295 /* max decimal value of an "unsigned" */
	#define SYSPID_MAX 1 /* max pid of system processes */

	#ifndef SYS_NMLN /* also defined in sys/utsname.h */
	#define SYS_NMLN 257 /* 4.0 size of utsname elements */
	#endif

	#ifndef CLK_TCK

	#if !defined(_CLOCK_T) \|\| __cplusplus >= 199711L
	#define _CLOCK_T
	typedef long clock_t;
	#endif /* !_CLOCK_T */

	extern long _sysconf(int); /* System Private interface to sysconf() */
	#define CLK_TCK ((clock_t)_sysconf(3)) /* 3 is _SC_CLK_TCK */

	#endif /* CLK_TCK */

	#ifdef __USE_LEGACY_LOGNAME__
	#define LOGNAME_MAX 8 /* max # of characters in a login name */
	#else /* __USE_LEGACY_LOGNAME__ */
	#define LOGNAME_MAX 32 /* max # of characters in a login name */
	/* Increased for illumos */
	#endif /* __USE_LEGACY_LOGNAME__ */
	#define LOGIN_NAME_MAX (LOGNAME_MAX + 1) /* max buffer size */
	#define LOGNAME_MAX_TRAD 8 /* traditional length */
	#define LOGIN_NAME_MAX_TRAD (LOGNAME_MAX_TRAD + 1) /* and size */

	#define TTYNAME_MAX 128 /* max # of characters in a tty name */

	#endif /* if defined(__EXTENSIONS__) \|\| (!defined(_STRICT_STDC) ... */

	#if defined(__EXTENSIONS__) \|\| (_POSIX_C_SOURCE >= 199506L)
	#include <sys/unistd.h>

	#if !defined(_SIZE_T) \|\| __cplusplus >= 199711L
	#define _SIZE_T
	#if defined(_LP64) \|\| defined(_I32LPx)
	typedef unsigned long size_t; /* size of something in bytes */
	#else
	typedef unsigned int size_t; /* (historical version) */
	#endif
	#endif /* _SIZE_T */

	extern long _sysconf(int); /* System Private interface to sysconf() */

	#define PTHREAD_STACK_MIN ((size_t)_sysconf(_SC_THREAD_STACK_MIN))
	/* Added for UNIX98 conformance */
	#define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS
	#define PTHREAD_KEYS_MAX _POSIX_THREAD_KEYS_MAX
	#define PTHREAD_THREADS_MAX _POSIX_THREAD_THREADS_MAX
	#endif /* defined(__EXTENSIONS__) \|\| (_POSIX_C_SOURCE >= 199506L) */

	#ifdef __cplusplus
	}
	#endif

	#endif /* _LIMITS_H */