reference, declarationdefinition
definition → references, declarations, derived classes, virtual overrides
reference to multiple definitions → definitions
unreferenced
    1
    2
    3
    4
    5
    6
    7
    8
    9
   10
   11
   12
   13
   14
   15
   16
   17
   18
   19
   20
   21
   22
   23
   24
   25
   26
   27
   28
   29
   30
   31
   32
   33
   34
   35
   36
   37
   38
   39
   40
   41
   42
   43
   44
   45
   46
   47
   48
   49
   50
   51
   52
   53
   54
   55
   56
   57
   58
   59
   60
   61
   62
   63
   64
   65
   66
   67
   68
   69
   70
   71
   72
   73
   74
   75
   76
   77
   78
   79
   80
   81
   82
   83
   84
   85
   86
   87
   88
   89
   90
   91
   92
   93
   94
   95
   96
   97
   98
   99
  100
  101
  102
  103
  104
  105
  106
  107
  108
  109
  110
  111
  112
  113
  114
  115
  116
  117
  118
  119
  120
  121
  122
  123
  124
  125
  126
  127
  128
  129
  130
  131
  132
  133
  134
  135
  136
  137
  138
  139
  140
  141
  142
  143
  144
  145
  146
  147
  148
  149
  150
  151
  152
/* Copyright (C) 1991-2014 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
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <http://www.gnu.org/licenses/>.  */

/*
 *	ISO C99 Standard: 7.10/5.2.4.2.1 Sizes of integer types	<limits.h>
 */

#ifndef _LIBC_LIMITS_H_
#define _LIBC_LIMITS_H_	1

#include <features.h>


/* Maximum length of any multibyte character in any locale.
   We define this value here since the gcc header does not define
   the correct value.  */
#define MB_LEN_MAX	16


/* If we are not using GNU CC we have to define all the symbols ourself.
   Otherwise use gcc's definitions (see below).  */
#if !defined __GNUC__ || __GNUC__ < 2

/* We only protect from multiple inclusion here, because all the other
   #include's protect themselves, and in GCC 2 we may #include_next through
   multiple copies of this file before we get to GCC's.  */
# ifndef _LIMITS_H
#  define _LIMITS_H	1

#include <bits/wordsize.h>

/* We don't have #include_next.
   Define ANSI <limits.h> for standard 32-bit words.  */

/* These assume 8-bit `char's, 16-bit `short int's,
   and 32-bit `int's and `long int's.  */

/* Number of bits in a `char'.	*/
#  define CHAR_BIT	8

/* Minimum and maximum values a `signed char' can hold.  */
#  define SCHAR_MIN	(-128)
#  define SCHAR_MAX	127

/* Maximum value an `unsigned char' can hold.  (Minimum is 0.)  */
#  define UCHAR_MAX	255

/* Minimum and maximum values a `char' can hold.  */
#  ifdef __CHAR_UNSIGNED__
#   define CHAR_MIN	0
#   define CHAR_MAX	UCHAR_MAX
#  else
#   define CHAR_MIN	SCHAR_MIN
#   define CHAR_MAX	SCHAR_MAX
#  endif

/* Minimum and maximum values a `signed short int' can hold.  */
#  define SHRT_MIN	(-32768)
#  define SHRT_MAX	32767

/* Maximum value an `unsigned short int' can hold.  (Minimum is 0.)  */
#  define USHRT_MAX	65535

/* Minimum and maximum values a `signed int' can hold.  */
#  define INT_MIN	(-INT_MAX - 1)
#  define INT_MAX	2147483647

/* Maximum value an `unsigned int' can hold.  (Minimum is 0.)  */
#  define UINT_MAX	4294967295U

/* Minimum and maximum values a `signed long int' can hold.  */
#  if __WORDSIZE == 64
#   define LONG_MAX	9223372036854775807L
#  else
#   define LONG_MAX	2147483647L
#  endif
#  define LONG_MIN	(-LONG_MAX - 1L)

/* Maximum value an `unsigned long int' can hold.  (Minimum is 0.)  */
#  if __WORDSIZE == 64
#   define ULONG_MAX	18446744073709551615UL
#  else
#   define ULONG_MAX	4294967295UL
#  endif

#  ifdef __USE_ISOC99

/* Minimum and maximum values a `signed long long int' can hold.  */
#   define LLONG_MAX	9223372036854775807LL
#   define LLONG_MIN	(-LLONG_MAX - 1LL)

/* Maximum value an `unsigned long long int' can hold.  (Minimum is 0.)  */
#   define ULLONG_MAX	18446744073709551615ULL

#  endif /* ISO C99 */

# endif	/* limits.h  */
#endif	/* GCC 2.  */

#endif	/* !_LIBC_LIMITS_H_ */

 /* Get the compiler's limits.h, which defines almost all the ISO constants.

    We put this #include_next outside the double inclusion check because
    it should be possible to include this file more than once and still get
    the definitions from gcc's header.  */
#if defined __GNUC__ && !defined _GCC_LIMITS_H_
/* `_GCC_LIMITS_H_' is what GCC's file defines.  */
# include_next <limits.h>
#endif

/* The <limits.h> files in some gcc versions don't define LLONG_MIN,
   LLONG_MAX, and ULLONG_MAX.  Instead only the values gcc defined for
   ages are available.  */
#if defined __USE_ISOC99 && defined __GNUC__
# ifndef LLONG_MIN
#  define LLONG_MIN	(-LLONG_MAX-1)
# endif
# ifndef LLONG_MAX
#  define LLONG_MAX	__LONG_LONG_MAX__
# endif
# ifndef ULLONG_MAX
#  define ULLONG_MAX	(LLONG_MAX * 2ULL + 1)
# endif
#endif

#ifdef	__USE_POSIX
/* POSIX adds things to <limits.h>.  */
# include <bits/posix1_lim.h>
#endif

#ifdef	__USE_POSIX2
# include <bits/posix2_lim.h>
#endif

#ifdef	__USE_XOPEN
# include <bits/xopen_lim.h>
#endif