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[/] [or1k/] [trunk/] [linux/] [uClibc/] [include/] [limits.h] - Blame information for rev 1325

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1 1325 phoenix
/* Copyright (C) 1991, 92, 96, 97, 98, 99, 2000 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Lesser General Public
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   License as published by the Free Software Foundation; either
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   version 2.1 of the License, or (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Lesser General Public License for more details.
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   You should have received a copy of the GNU Lesser General Public
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   License along with the GNU C Library; if not, write to the Free
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   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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   02111-1307 USA.  */
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/*
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 *      ISO C99 Standard: 7.10/5.2.4.2.1 Sizes of integer types <limits.h>
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 */
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#ifndef _LIBC_LIMITS_H_
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#define _LIBC_LIMITS_H_ 1
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#include <features.h>
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/* Maximum length of any multibyte character in any locale.
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   We define this value here since the gcc header does not define
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   the correct value.  */
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#define MB_LEN_MAX      16
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/* If we are not using GNU CC we have to define all the symbols ourself.
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   Otherwise use gcc's definitions (see below).  */
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#if !defined __GNUC__ || __GNUC__ < 2
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/* We only protect from multiple inclusion here, because all the other
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   #include's protect themselves, and in GCC 2 we may #include_next through
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   multiple copies of this file before we get to GCC's.  */
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# ifndef _LIMITS_H
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#  define _LIMITS_H     1
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#include <bits/wordsize.h>
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/* We don't have #include_next.
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   Define ANSI <limits.h> for standard 32-bit words.  */
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/* These assume 8-bit `char's, 16-bit `short int's,
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   and 32-bit `int's and `long int's.  */
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/* Number of bits in a `char'.  */
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#  define CHAR_BIT      8
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/* Minimum and maximum values a `signed char' can hold.  */
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#  define SCHAR_MIN     (-128)
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#  define SCHAR_MAX     127
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/* Maximum value an `unsigned char' can hold.  (Minimum is 0.)  */
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#  define UCHAR_MAX     255
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/* Minimum and maximum values a `char' can hold.  */
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#  ifdef __CHAR_UNSIGNED__
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#   define CHAR_MIN     0
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#   define CHAR_MAX     UCHAR_MAX
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#  else
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#   define CHAR_MIN     SCHAR_MIN
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#   define CHAR_MAX     SCHAR_MAX
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#  endif
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/* Minimum and maximum values a `signed short int' can hold.  */
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#  define SHRT_MIN      (-32768)
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#  define SHRT_MAX      32767
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/* Maximum value an `unsigned short int' can hold.  (Minimum is 0.)  */
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#  define USHRT_MAX     65535
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/* Minimum and maximum values a `signed int' can hold.  */
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#  define INT_MIN       (-INT_MAX - 1)
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#  define INT_MAX       2147483647
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/* Maximum value an `unsigned int' can hold.  (Minimum is 0.)  */
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#  define UINT_MAX      4294967295U
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/* Minimum and maximum values a `signed long int' can hold.  */
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#  if __WORDSIZE == 64
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#   define LONG_MAX     9223372036854775807L
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#  else
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#   define LONG_MAX     2147483647L
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#  endif
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#  define LONG_MIN      (-LONG_MAX - 1L)
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/* Maximum value an `unsigned long int' can hold.  (Minimum is 0.)  */
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#  if __WORDSIZE == 64
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#   define ULONG_MAX    18446744073709551615UL
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#  else
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#   define ULONG_MAX    4294967295UL
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#  endif
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#  ifdef __USE_ISOC99
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/* Minimum and maximum values a `signed long long int' can hold.  */
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#   define LLONG_MAX    9223372036854775807LL
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#   define LLONG_MIN    (-LLONG_MAX - 1LL)
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/* Maximum value an `unsigned long long int' can hold.  (Minimum is 0.)  */
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#   define ULLONG_MAX   18446744073709551615ULL
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#  endif /* ISO C99 */
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# endif /* limits.h  */
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#endif  /* GCC 2.  */
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#endif  /* !_LIBC_LIMITS_H_ */
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 /* Get the compiler's limits.h, which defines almost all the ISO constants.
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    We put this #include_next outside the double inclusion check because
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    it should be possible to include this file more than once and still get
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    the definitions from gcc's header.  */
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#if defined __GNUC__ && !defined _GCC_LIMITS_H_
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/* `_GCC_LIMITS_H_' is what GCC's file defines.  */
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# include_next <limits.h>
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/* The <limits.h> files in some gcc versions don't define LLONG_MIN,
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   LLONG_MAX, and ULLONG_MAX.  Instead only the values gcc defined for
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   ages are available.  */
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# ifdef __USE_ISOC99
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#  ifndef LLONG_MIN
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#   define LLONG_MIN    LONG_LONG_MIN
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#  endif
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#  ifndef LLONG_MAX
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#   define LLONG_MAX    LONG_LONG_MAX
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#  endif
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#  ifndef ULLONG_MAX
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#   define ULLONG_MAX   ULONG_LONG_MAX
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#  endif
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# endif
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#endif
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#ifdef  __USE_POSIX
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/* POSIX adds things to <limits.h>.  */
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# include <bits/posix1_lim.h>
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#endif
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#ifdef  __USE_POSIX2
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# include <bits/posix2_lim.h>
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#endif
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#ifdef  __USE_XOPEN
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# include <bits/xopen_lim.h>
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#endif

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