/* $OpenBSD: limits.h,v 1.10 2012/06/30 20:21:10 guenther Exp $ */
/*
 * Copyright (c) 2002 Marc Espie.
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT 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 OPENBSD
 * PROJECT 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.
 */
#ifndef _SYS_LIMITS_H_
#define _SYS_LIMITS_H_

#include <sys/cdefs.h>

/* Common definitions for limits.h. */

/* Legacy */
#include <machine/limits.h>

#define CHAR_BIT        8               /* number of bits in a char */

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

#define UCHAR_MAX       0xff            /* 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 MB_LEN_MAX      4               /* Allow UTF-8 (RFC 3629) */

#define USHRT_MAX       0xffff          /* 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

#if __BSD_VISIBLE || __ISO_C_VISIBLE >= 1999
# 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 */
#endif

#if __BSD_VISIBLE
# define UID_MAX        UINT_MAX        /* max value for a uid_t */
# define GID_MAX        UINT_MAX        /* max value for a gid_t */
#endif

#if __XPG_VISIBLE || __POSIX_VISIBLE >= 200809
# ifdef __LP64__
#  define LONG_BIT      64
# else
#  define LONG_BIT      32
# endif
# define WORD_BIT       32
#endif

#if __XPG_VISIBLE < 600
# include <machine/_float.h>

/* XSI defines marked LEGACY in XPG5 and removed in IEEE Std 1003.1-2001 */
# ifndef FLT_DIG
#   define FLT_DIG      __FLT_DIG
# endif
# ifndef FLT_MAX
#   define FLT_MAX      __FLT_MAX
# endif
# ifndef DBL_DIG
#   define DBL_DIG      __DBL_DIG
# endif
# ifndef DBL_MAX
#   define DBL_MAX      __DBL_MAX
# endif

/* XSI defines marked LEGACY in XPG4v2 and removed in XPG5 */
# if __XPG_VISIBLE < 500
#  ifndef FLT_MIN
#    define FLT_MIN     __FLT_MIN
#  endif
#  ifndef DBL_MIN
#    define DBL_MIN     __DBL_MIN
#  endif
# endif

#endif /* __XPG_VISIBLE < 600 */

#endif