libc/include/limits.h

/*	$OpenBSD: limits.h,v 1.13 2005/12/31 19:29:38 millert Exp $	*/
/*	$NetBSD: limits.h,v 1.7 1994/10/26 00:56:00 cgd Exp $	*/

/*
 * Copyright (c) 1988 The Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)limits.h	5.9 (Berkeley) 4/3/91
 */

#ifndef _LIMITS_H_
#define _LIMITS_H_

#include <sys/cdefs.h>

/* Historically bionic exposed the content of <float.h> from <limits.h> and <sys/limits.h> too. */
#include <float.h>

#include <linux/limits.h>

#define PASS_MAX		128	/* _PASSWORD_LEN from <pwd.h> */

#define NL_ARGMAX		9
#define NL_LANGMAX		14
#define NL_MSGMAX		32767
#define NL_NMAX			1
#define NL_SETMAX		255
#define NL_TEXTMAX		255

#define TMP_MAX                 308915776

/* TODO: get all these from the compiler's <limits.h>? */

#define CHAR_BIT 8
#ifdef __LP64__
# define LONG_BIT 64
#else
# define LONG_BIT 32
#endif
#define WORD_BIT 32

#define	SCHAR_MAX	0x7f		/* max value for a signed char */
#define SCHAR_MIN	(-0x7f-1)	/* min value for a signed char */

#define	UCHAR_MAX	0xffU		/* max value for an unsigned char */
#ifdef __CHAR_UNSIGNED__
# define CHAR_MIN	0		/* min value for a char */
# define CHAR_MAX	0xff		/* max value for a char */
#else
# define CHAR_MAX	0x7f
# define CHAR_MIN	(-0x7f-1)
#endif

#define	USHRT_MAX	0xffffU		/* max value for an unsigned short */
#define	SHRT_MAX	0x7fff		/* max value for a short */
#define SHRT_MIN        (-0x7fff-1)     /* min value for a short */

#define	UINT_MAX	0xffffffffU	/* max value for an unsigned int */
#define	INT_MAX		0x7fffffff	/* max value for an int */
#define	INT_MIN		(-0x7fffffff-1)	/* min value for an int */

#ifdef __LP64__
# define ULONG_MAX	0xffffffffffffffffUL     /* max value for unsigned long */
# define LONG_MAX	0x7fffffffffffffffL      /* max value for a signed long */
# define LONG_MIN	(-0x7fffffffffffffffL-1) /* min value for a signed long */
#else
# define ULONG_MAX	0xffffffffUL	/* max value for an unsigned long */
# define LONG_MAX	0x7fffffffL	/* max value for a long */
# define LONG_MIN	(-0x7fffffffL-1)/* min value for a long */
#endif

# define ULLONG_MAX	0xffffffffffffffffULL     /* max value for unsigned long long */
# define LLONG_MAX	0x7fffffffffffffffLL      /* max value for a signed long long */
# define LLONG_MIN	(-0x7fffffffffffffffLL-1) /* min value for a signed long long */

/* GLibc compatibility definitions.
   Note that these are defined by GCC's <limits.h>
   only when __GNU_LIBRARY__ is defined, i.e. when
   targetting GLibc. */
#ifndef LONG_LONG_MIN
#define LONG_LONG_MIN  LLONG_MIN
#endif

#ifndef LONG_LONG_MAX
#define LONG_LONG_MAX  LLONG_MAX
#endif

#ifndef ULONG_LONG_MAX
#define ULONG_LONG_MAX  ULLONG_MAX
#endif

#if defined(__USE_BSD) || defined(__BIONIC__) /* Historically bionic exposed these. */
# define UID_MAX	UINT_MAX	/* max value for a uid_t */
# define GID_MAX	UINT_MAX	/* max value for a gid_t */
#if defined(__LP64__)
#define SIZE_T_MAX ULONG_MAX
#else
#define SIZE_T_MAX UINT_MAX
#endif
#endif

#if defined(__LP64__)
#define SSIZE_MAX LONG_MAX
#else
#define SSIZE_MAX INT_MAX
#endif

#define MB_LEN_MAX 4

#define NZERO 20

#define IOV_MAX 1024
#define SEM_VALUE_MAX 0x3fffffff

/** Do not use: prefer getline() or asprintf() rather than hard-coding an arbitrary size. */
#define LINE_MAX _POSIX2_LINE_MAX

/* POSIX says these belong in <unistd.h> but BSD has some in <limits.h>. */
#include <bits/posix_limits.h>

#define HOST_NAME_MAX _POSIX_HOST_NAME_MAX
#define LOGIN_NAME_MAX 256
#define TTY_NAME_MAX 32

/* >= _POSIX_THREAD_DESTRUCTOR_ITERATIONS */
#define PTHREAD_DESTRUCTOR_ITERATIONS 4

/**
 * The number of calls to pthread_key_create() without intervening calls to
 * pthread_key_delete() that are guaranteed to succeed. See pthread_key_create()
 * for more details and ways to avoid hitting this limit.
 */
#define PTHREAD_KEYS_MAX 128

/** bionic has no specific limit on the number of threads. */
#undef PTHREAD_THREADS_MAX

#endif /* !_LIMITS_H_ */