src/system.h

   1 /* system-dependent definitions for Bison.
   2    Copyright (C) 2000 Free Software Foundation, Inc.
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 2, or (at your option)
   7    any later version.
   8
   9    This program 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
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; if not, write to the Free Software Foundation,
  16    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  17
  18 #ifndef BISON_SYSTEM_H
  19 #define BISON_SYSTEM_H
  20
  21 #ifdef HAVE_CONFIG_H
  22 # include <config.h>
  23 #endif
  24
  25 #include <stdio.h>
  26
  27 #ifdef MSDOS
  28 # include <io.h>
  29 #endif
  30
  31 #ifdef _MSC_VER
  32 # include <stdlib.h>
  33 # include <process.h>
  34 # define getpid _getpid
  35 #endif
  36
  37 #if defined(HAVE_STDLIB_H) || defined(MSDOS)
  38 # include <stdlib.h>
  39 #endif
  40
  41 #if defined(HAVE_UNISTD_H)
  42 # include <unistd.h>
  43 #endif
  44
  45 #if (defined(VMS) || defined(MSDOS)) && !defined(HAVE_STRING_H)
  46 # define HAVE_STRING_H 1
  47 #endif
  48
  49 #if defined(STDC_HEADERS) || defined(HAVE_STRING_H)
  50 # include <string.h>
  51 /* An ANSI string.h and pre-ANSI memory.h might conflict.  */
  52 # if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
  53 #  include <memory.h>
  54 # endif /* not STDC_HEADERS and HAVE_MEMORY_H */
  55 # ifndef bcopy
  56 #  define bcopy(src, dst, num) memcpy((dst), (src), (num))
  57 # endif
  58 #else /* not STDC_HEADERS and not HAVE_STRING_H */
  59 # include <strings.h>
  60 /* memory.h and strings.h conflict on some systems.  */
  61 #endif /* not STDC_HEADERS and not HAVE_STRING_H */
  62
  63 #if defined(STDC_HEADERS) || defined(HAVE_CTYPE_H)
  64 # include <ctype.h>
  65 #endif
  66
  67 #include <errno.h>
  68 #ifndef errno
  69 extern int errno;
  70 #endif
  71
  72
  73 /*-----------------.
  74 | GCC extensions.  |
  75 `-----------------*/
  76
  77 #ifndef __attribute__
  78 /* This feature is available in gcc versions 2.5 and later.  */
  79 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
  80 #  define __attribute__(Spec) /* empty */
  81 # endif
  82 /* The __-protected variants of `format' and `printf' attributes
  83    are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
  84 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
  85 #  define __format__ format
  86 #  define __printf__ printf
  87 # endif
  88 #endif
  89
  90
  91 /*------.
  92 | NLS.  |
  93 `------*/
  94
  95 #ifdef HAVE_LOCALE_H
  96 # include <locale.h>
  97 #endif
  98 #ifndef HAVE_SETLOCALE
  99 # define setlocale(Category, Locale)
 100 #endif
 101
 102 #ifdef ENABLE_NLS
 103 # include <libintl.h>
 104 # define _(Text) gettext (Text)
 105 #else
 106 # undef bindtextdomain
 107 # define bindtextdomain(Domain, Directory)
 108 # undef textdomain
 109 # define textdomain(Domain)
 110 # define _(Text) Text
 111 #endif
 112 #define N_(Text) Text
 113
 114
 115 /*-------------------------------.
 116 | Fix broken compilation flags.  |
 117 `-------------------------------*/
 118
 119 #ifndef LOCALEDIR
 120 # define LOCALEDIR "/usr/local/share/locale"
 121 #endif
 122
 123 #endif  /* BISON_SYSTEM_H */
 124
 125
 126 /*---------------------------------.
 127 | Machine-dependencies for Bison.  |
 128 `---------------------------------*/
 129
 130 #ifdef  eta10
 131 # define        MAXSHORT        2147483647
 132 # define        MINSHORT        -2147483648
 133 #else
 134 # define        MAXSHORT        32767
 135 # define        MINSHORT        -32768
 136 #endif
 137
 138 #if defined (MSDOS) && !defined (__GO32__)
 139 # define        BITS_PER_WORD   16
 140 # define MAXTABLE       16383
 141 #else
 142 # define        BITS_PER_WORD   32
 143 # define MAXTABLE       32767
 144 #endif
 145
 146 #define WORDSIZE(n)     (((n) + BITS_PER_WORD - 1) / BITS_PER_WORD)
 147 #define SETBIT(x, i)    ((x)[(i)/BITS_PER_WORD] |= (1<<((i) % BITS_PER_WORD)))
 148 #define RESETBIT(x, i)  ((x)[(i)/BITS_PER_WORD] &= ~(1<<((i) % BITS_PER_WORD)))
 149 #define BITISSET(x, i)  (((x)[(i)/BITS_PER_WORD] & (1<<((i) % BITS_PER_WORD))) != 0)