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[/] [c0or1k/] [trunk/] [conts/] [posix/] [libposix/] [include/] [posix/] [bits/] [xopen_lim.h] - Blame information for rev 2

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1 2 drasko
/* Copyright (C) 1996, 1997, 1999, 2001 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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 * Never include this file directly; use <limits.h> instead.
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 */
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/* Additional definitions from X/Open Portability Guide, Issue 4, Version 2
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   System Interfaces and Headers, 4.16 <limits.h>
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   Please note only the values which are not greater than the minimum
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   stated in the standard document are listed.  The `sysconf' functions
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   should be used to obtain the actual value.  */
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#ifndef _XOPEN_LIM_H
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#define _XOPEN_LIM_H    1
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#define __need_IOV_MAX
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#include <bits/stdio_lim.h>
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/* We do not provide fixed values for
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   ARG_MAX      Maximum length of argument to the `exec' function
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                including environment data.
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   ATEXIT_MAX   Maximum number of functions that may be registered
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                with `atexit'.
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   CHILD_MAX    Maximum number of simultaneous processes per real
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                user ID.
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   OPEN_MAX     Maximum number of files that one process can have open
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                at anyone time.
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   PAGESIZE
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   PAGE_SIZE    Size of bytes of a page.
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   PASS_MAX     Maximum number of significant bytes in a password.
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   We only provide a fixed limit for
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   IOV_MAX      Maximum number of `iovec' structures that one process has
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                available for use with `readv' or writev'.
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   if this is indeed fixed by the underlying system.
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*/
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/* Maximum number of `iovec' structures that one process has available
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   for use with `readv' or writev'.  */
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#define _XOPEN_IOV_MAX  _POSIX_UIO_MAXIOV
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/* Maximum value of `digit' in calls to the `printf' and `scanf'
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   functions.  Posix dictates this should be a minimum of 9 */
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#if !defined(__UCLIBC_PRINTF_SCANF_POSITIONAL_ARGS__) || (__UCLIBC_PRINTF_SCANF_POSITIONAL_ARGS__ <= 1)
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#undef NL_ARGMAX
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#elif __UCLIBC_PRINTF_SCANF_POSITIONAL_ARGS__ < 9
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#define NL_ARGMAX       9
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#else
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#define NL_ARGMAX       __UCLIBC_PRINTF_SCANF_POSITIONAL_ARGS__
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#endif
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/* Maximum number of bytes in a `LANG' name.  We have no limit.  */
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#define NL_LANGMAX      _POSIX2_LINE_MAX
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/* Maximum message number.  We have no limit.  */
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#define NL_MSGMAX       INT_MAX
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/* Maximum number of bytes in N-to-1 collation mapping.  We have no
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   limit.  */
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#define NL_NMAX         INT_MAX
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/* Maximum set number.  We have no limit.  */
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#define NL_SETMAX       INT_MAX
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/* Maximum number of bytes in a message.  We have no limit.  */
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#define NL_TEXTMAX      INT_MAX
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/* Default process priority.  */
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#define NZERO           20
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/* Number of bits in a word of type `int'.  */
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#ifdef INT_MAX
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# if INT_MAX == 32767
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#  define WORD_BIT      16
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# else
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#  if INT_MAX == 2147483647
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#   define WORD_BIT     32
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#  else
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/* Safe assumption.  */
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#   define WORD_BIT     64
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#  endif
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# endif
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#elif defined __INT_MAX__
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# if __INT_MAX__ == 32767
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#  define WORD_BIT      16
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# else
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#  if __INT_MAX__ == 2147483647
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#   define WORD_BIT     32
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#  else
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/* Safe assumption.  */
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#   define WORD_BIT     64
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#  endif
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# endif
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#else
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# define WORD_BIT       32
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#endif
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/* Number of bits in a word of type `long int'.  */
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#ifdef LONG_MAX
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# if LONG_MAX == 2147483647
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#  define LONG_BIT      32
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# else
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/* Safe assumption.  */
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#  define LONG_BIT      64
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# endif
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#elif defined __LONG_MAX__
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# if __LONG_MAX__ == 2147483647
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#  define LONG_BIT      32
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# else
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/* Safe assumption.  */
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#  define LONG_BIT      64
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# endif
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#else
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# include <bits/wordsize.h>
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# if __WORDSIZE == 64
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#  define LONG_BIT      64
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# else
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#  define LONG_BIT      32
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# endif
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#endif
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#endif /* bits/xopen_lim.h */

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