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 #include <assert.h>
  28
  29 #ifdef MSDOS
  30 # include <io.h>
  31 #endif
  32
  33 #ifdef _MSC_VER
  34 # include <stdlib.h>
  35 # include <process.h>
  36 # define getpid _getpid
  37 #endif
  38
  39 #if HAVE_STDLIB_H
  40 # include <stdlib.h>
  41 #endif
  42
  43 #if HAVE_UNISTD_H
  44 # include <unistd.h>
  45 #endif
  46
  47 #if defined(STDC_HEADERS) || defined(HAVE_STRING_H)
  48 # include <string.h>
  49 /* An ANSI string.h and pre-ANSI memory.h might conflict.  */
  50 # if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
  51 #  include <memory.h>
  52 # endif /* not STDC_HEADERS and HAVE_MEMORY_H */
  53 # ifndef bcopy
  54 #  define bcopy(src, dst, num) memcpy((dst), (src), (num))
  55 # endif
  56 #else /* not STDC_HEADERS and not HAVE_STRING_H */
  57 # include <strings.h>
  58 /* memory.h and strings.h conflict on some systems.  */
  59 #endif /* not STDC_HEADERS and not HAVE_STRING_H */
  60
  61 #if defined(STDC_HEADERS) || defined(HAVE_CTYPE_H)
  62 # include <ctype.h>
  63 #endif
  64
  65 #include <errno.h>
  66 #ifndef errno
  67 extern int errno;
  68 #endif
  69
  70 #if PROTOTYPES
  71 # define PARAMS(p) p
  72 #else
  73 # define PARAMS(p) ()
  74 #endif
  75
  76 /*-----------------.
  77 | GCC extensions.  |
  78 `-----------------*/
  79
  80 #ifndef __attribute__
  81 /* This feature is available in gcc versions 2.5 and later.  */
  82 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
  83 #  define __attribute__(Spec) /* empty */
  84 # endif
  85 /* The __-protected variants of `format' and `printf' attributes
  86    are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
  87 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
  88 #  define __format__ format
  89 #  define __printf__ printf
  90 # endif
  91 #endif
  92
  93
  94 /*------.
  95 | NLS.  |
  96 `------*/
  97
  98 #ifdef HAVE_LOCALE_H
  99 # include <locale.h>
 100 #endif
 101 #ifndef HAVE_SETLOCALE
 102 # define setlocale(Category, Locale)
 103 #endif
 104
 105 #ifdef ENABLE_NLS
 106 # include <libintl.h>
 107 # define _(Text) gettext (Text)
 108 #else
 109 # undef bindtextdomain
 110 # define bindtextdomain(Domain, Directory)
 111 # undef textdomain
 112 # define textdomain(Domain)
 113 # define _(Text) Text
 114 #endif
 115 #define N_(Text) Text
 116
 117
 118 /*-------------------------------.
 119 | Fix broken compilation flags.  |
 120 `-------------------------------*/
 121
 122 #ifndef LOCALEDIR
 123 # define LOCALEDIR "/usr/local/share/locale"
 124 #endif
 125
 126 #endif  /* BISON_SYSTEM_H */
 127
 128
 129 /*---------------------------------.
 130 | Machine-dependencies for Bison.  |
 131 `---------------------------------*/
 132
 133 #ifdef  eta10
 134 # define        MAXSHORT        2147483647
 135 # define        MINSHORT        -2147483648
 136 #else
 137 # define        MAXSHORT        32767
 138 # define        MINSHORT        -32768
 139 #endif
 140
 141 #if defined (MSDOS) && !defined (__GO32__)
 142 # define        BITS_PER_WORD   16
 143 # define MAXTABLE       16383
 144 #else
 145 # define        BITS_PER_WORD   32
 146 # define MAXTABLE       32767
 147 #endif
 148
 149 #define WORDSIZE(n)     (((n) + BITS_PER_WORD - 1) / BITS_PER_WORD)
 150 #define SETBIT(x, i)    ((x)[(i)/BITS_PER_WORD] |= (1<<((i) % BITS_PER_WORD)))
 151 #define RESETBIT(x, i)  ((x)[(i)/BITS_PER_WORD] &= ~(1<<((i) % BITS_PER_WORD)))
 152 #define BITISSET(x, i)  (((x)[(i)/BITS_PER_WORD] & (1<<((i) % BITS_PER_WORD))) != 0)
 153
 154
 155 /*-----------.
 156 | Booleans.  |
 157 `-----------*/
 158
 159 #ifndef TRUE
 160 # define TRUE   (1)
 161 # define FALSE  (0)
 162 #endif
 163 typedef int bool;
 164
 165
 166 /*-----------.
 167 | Obstacks.  |
 168 `-----------*/
 169
 170 #define obstack_chunk_alloc xmalloc
 171 #define obstack_chunk_free  free
 172 #include "obstack.h"
 173
 174 #define obstack_grow_literal_string(Obs, Str) \
 175   obstack_grow (Obs, Str, sizeof (Str) - 1)
 176
 177 #define obstack_fgrow1(Obs, Format, Arg1)       \
 178 do {                                            \
 179   char buf[4096];                               \
 180   sprintf (buf, Format, Arg1);                  \
 181   obstack_grow (Obs, buf, strlen (buf));        \
 182 } while (0)
 183
 184 #define obstack_fgrow2(Obs, Format, Arg1, Arg2) \
 185 do {                                            \
 186   char buf[4096];                               \
 187   sprintf (buf, Format, Arg1, Arg2);            \
 188   obstack_grow (Obs, buf, strlen (buf));        \
 189 } while (0)
 190
 191 #define obstack_fgrow3(Obs, Format, Arg1, Arg2, Arg3)   \
 192 do {                                                    \
 193   char buf[4096];                                       \
 194   sprintf (buf, Format, Arg1, Arg2, Arg3);              \
 195   obstack_grow (Obs, buf, strlen (buf));                \
 196 } while (0)