posix/bits/posix2_lim.h

   1 /* Copyright (C) 1991-2015 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 /*
  19  * Never include this file directly; include <limits.h> instead.
  20  */
  21
  22 #ifndef _BITS_POSIX2_LIM_H
  23 #define _BITS_POSIX2_LIM_H      1
  24
  25
  26 /* The maximum `ibase' and `obase' values allowed by the `bc' utility.  */
  27 #define _POSIX2_BC_BASE_MAX             99
  28
  29 /* The maximum number of elements allowed in an array by the `bc' utility.  */
  30 #define _POSIX2_BC_DIM_MAX              2048
  31
  32 /* The maximum `scale' value allowed by the `bc' utility.  */
  33 #define _POSIX2_BC_SCALE_MAX            99
  34
  35 /* The maximum length of a string constant accepted by the `bc' utility.  */
  36 #define _POSIX2_BC_STRING_MAX           1000
  37
  38 /* The maximum number of weights that can be assigned to an entry of
  39    the LC_COLLATE `order' keyword in the locale definition file.  */
  40 #define _POSIX2_COLL_WEIGHTS_MAX        2
  41
  42 /* The maximum number of expressions that can be nested
  43    within parentheses by the `expr' utility.  */
  44 #define _POSIX2_EXPR_NEST_MAX           32
  45
  46 /* The maximum length, in bytes, of an input line.  */
  47 #define _POSIX2_LINE_MAX                2048
  48
  49 /* The maximum number of repeated occurrences of a regular expression
  50    permitted when using the interval notation `\{M,N\}'.  */
  51 #define _POSIX2_RE_DUP_MAX              255
  52
  53 /* The maximum number of bytes in a character class name.  We have no
  54    fixed limit, 2048 is a high number.  */
  55 #define _POSIX2_CHARCLASS_NAME_MAX      14
  56
  57
  58 /* These values are implementation-specific,
  59    and may vary within the implementation.
  60    Their precise values can be obtained from sysconf.  */
  61
  62 #ifndef BC_BASE_MAX
  63 #define BC_BASE_MAX             _POSIX2_BC_BASE_MAX
  64 #endif
  65 #ifndef BC_DIM_MAX
  66 #define BC_DIM_MAX              _POSIX2_BC_DIM_MAX
  67 #endif
  68 #ifndef BC_SCALE_MAX
  69 #define BC_SCALE_MAX            _POSIX2_BC_SCALE_MAX
  70 #endif
  71 #ifndef BC_STRING_MAX
  72 #define BC_STRING_MAX           _POSIX2_BC_STRING_MAX
  73 #endif
  74 #ifndef COLL_WEIGHTS_MAX
  75 #define COLL_WEIGHTS_MAX        255
  76 #endif
  77 #ifndef EXPR_NEST_MAX
  78 #define EXPR_NEST_MAX           _POSIX2_EXPR_NEST_MAX
  79 #endif
  80 #ifndef LINE_MAX
  81 #define LINE_MAX                _POSIX2_LINE_MAX
  82 #endif
  83 #ifndef CHARCLASS_NAME_MAX
  84 #define CHARCLASS_NAME_MAX      2048
  85 #endif
  86
  87 /* This value is defined like this in regex.h.  */
  88 #define RE_DUP_MAX (0x7fff)
  89
  90 #endif  /* bits/posix2_lim.h */