src/system.h

   1 /* system-dependent definitions for Bison.
   2    Copyright 2000, 2001  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 /* The following test is to work around the gross typo in
  44    systems like Sony NEWS-OS Release 4.0C, whereby EXIT_FAILURE
  45    is defined to 0, not 1.  */
  46 #if !EXIT_FAILURE
  47 # undef EXIT_FAILURE
  48 # define EXIT_FAILURE 1
  49 #endif
  50
  51 #ifndef EXIT_SUCCESS
  52 # define EXIT_SUCCESS 0
  53 #endif
  54
  55 #if HAVE_UNISTD_H
  56 # include <unistd.h>
  57 #endif
  58
  59 #if defined(STDC_HEADERS) || defined(HAVE_STRING_H)
  60 # include <string.h>
  61 /* An ANSI string.h and pre-ANSI memory.h might conflict.  */
  62 # if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
  63 #  include <memory.h>
  64 # endif /* not STDC_HEADERS and HAVE_MEMORY_H */
  65 # ifndef bcopy
  66 #  define bcopy(src, dst, num) memcpy((dst), (src), (num))
  67 # endif
  68 #else /* not STDC_HEADERS and not HAVE_STRING_H */
  69 # include <strings.h>
  70 /* memory.h and strings.h conflict on some systems.  */
  71 #endif /* not STDC_HEADERS and not HAVE_STRING_H */
  72
  73 #if defined(STDC_HEADERS) || defined(HAVE_CTYPE_H)
  74 # include <ctype.h>
  75 #endif
  76
  77 #include <errno.h>
  78 #ifndef errno
  79 extern int errno;
  80 #endif
  81
  82 /* AIX requires this to be the first thing in the file.  */
  83 #ifndef __GNUC__
  84 # if HAVE_ALLOCA_H
  85 #  include <alloca.h>
  86 # else
  87 #  ifdef _AIX
  88  #pragma alloca
  89 #  else
  90 #   ifndef alloca /* predefined by HP cc +Olibcalls */
  91 char *alloca ();
  92 #   endif
  93 #  endif
  94 # endif
  95 #endif
  96
  97 #if PROTOTYPES
  98 # define PARAMS(p) p
  99 #else
 100 # define PARAMS(p) ()
 101 #endif
 102
 103 # include "xalloc.h"
 104
 105 /*---------------------.
 106 | Missing prototypes.  |
 107 `---------------------*/
 108
 109 #if !HAVE_DECL_STPCPY
 110 char *stpcpy PARAMS ((char *dest, const char *src));
 111 #endif
 112
 113 #if !HAVE_DECL_STRNDUP
 114 char *strndup PARAMS ((const char *s, size_t size));
 115 #endif
 116
 117 #if !HAVE_DECL_STRNLEN
 118 size_t strnlen PARAMS ((const char *s, size_t maxlen));
 119 #endif
 120
 121
 122
 123 /*-----------------.
 124 | GCC extensions.  |
 125 `-----------------*/
 126
 127 #ifndef __attribute__
 128 /* This feature is available in gcc versions 2.5 and later.  */
 129 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
 130 #  define __attribute__(Spec) /* empty */
 131 # endif
 132 /* The __-protected variants of `format' and `printf' attributes
 133    are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
 134 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
 135 #  define __format__ format
 136 #  define __printf__ printf
 137 # endif
 138 #endif
 139
 140
 141 /*------.
 142 | NLS.  |
 143 `------*/
 144
 145 #ifdef HAVE_LOCALE_H
 146 # include <locale.h>
 147 #endif
 148 #ifndef HAVE_SETLOCALE
 149 # define setlocale(Category, Locale)
 150 #endif
 151
 152 #include "libgettext.h"
 153 #define _(Msgid)  gettext (Msgid)
 154 #define N_(Msgid) (Msgid)
 155
 156
 157 /*-------------------------------.
 158 | Fix broken compilation flags.  |
 159 `-------------------------------*/
 160
 161 #ifndef LOCALEDIR
 162 # define LOCALEDIR "/usr/local/share/locale"
 163 #endif
 164
 165
 166 /*-----------.
 167 | Booleans.  |
 168 `-----------*/
 169
 170 #ifndef TRUE
 171 # define TRUE   (1)
 172 # define FALSE  (0)
 173 #endif
 174 typedef int bool;
 175
 176
 177 /*-----------.
 178 | Obstacks.  |
 179 `-----------*/
 180
 181 # define obstack_chunk_alloc xmalloc
 182 # define obstack_chunk_free  free
 183 # include "obstack.h"
 184
 185 #define obstack_sgrow(Obs, Str) \
 186   obstack_grow (Obs, Str, strlen (Str))
 187
 188 #define obstack_fgrow1(Obs, Format, Arg1)       \
 189 do {                                            \
 190   char buf[4096];                               \
 191   sprintf (buf, Format, Arg1);                  \
 192   obstack_grow (Obs, buf, strlen (buf));        \
 193 } while (0)
 194
 195 #define obstack_fgrow2(Obs, Format, Arg1, Arg2) \
 196 do {                                            \
 197   char buf[4096];                               \
 198   sprintf (buf, Format, Arg1, Arg2);            \
 199   obstack_grow (Obs, buf, strlen (buf));        \
 200 } while (0)
 201
 202 #define obstack_fgrow3(Obs, Format, Arg1, Arg2, Arg3)   \
 203 do {                                                    \
 204   char buf[4096];                                       \
 205   sprintf (buf, Format, Arg1, Arg2, Arg3);              \
 206   obstack_grow (Obs, buf, strlen (buf));                \
 207 } while (0)
 208
 209 #define obstack_fgrow4(Obs, Format, Arg1, Arg2, Arg3, Arg4)     \
 210 do {                                                            \
 211   char buf[4096];                                               \
 212   sprintf (buf, Format, Arg1, Arg2, Arg3, Arg4);                \
 213   obstack_grow (Obs, buf, strlen (buf));                        \
 214 } while (0)
 215
 216
 217 /*---------------------------------.
 218 | Machine-dependencies for Bison.  |
 219 `---------------------------------*/
 220
 221 #ifdef  eta10
 222 # define        MAXSHORT        2147483647
 223 # define        MINSHORT        -2147483648
 224 #else
 225 # define        MAXSHORT        32767
 226 # define        MINSHORT        -32768
 227 #endif
 228
 229 #if defined (MSDOS) && !defined (__GO32__)
 230 # define        BITS_PER_WORD   16
 231 # define MAXTABLE       16383
 232 #else
 233 # define        BITS_PER_WORD   32
 234 # define MAXTABLE       32767
 235 #endif
 236
 237 #define WORDSIZE(n)     (((n) + BITS_PER_WORD - 1) / BITS_PER_WORD)
 238 #define SETBIT(x, i)    ((x)[(i)/BITS_PER_WORD] |= (1<<((i) % BITS_PER_WORD)))
 239 #define RESETBIT(x, i)  ((x)[(i)/BITS_PER_WORD] &= ~(1<<((i) % BITS_PER_WORD)))
 240 #define BITISSET(x, i)  (((x)[(i)/BITS_PER_WORD] & (1<<((i) % BITS_PER_WORD))) != 0)
 241
 242
 243 /* Extensions to use for the output files. */
 244
 245 #ifdef VMS
 246   /* VMS. */
 247 # define EXT_TAB        "_tab"
 248 # define EXT_OUTPUT     ".output"
 249 # define EXT_STYPE_H    "_stype"
 250 # define EXT_GUARD_C    "_guard"
 251 #else /* ! VMS */
 252 # ifdef MSDOS
 253    /* MS DOS. */
 254 #  define EXT_TAB       "_tab"
 255 #  define EXT_OUTPUT    ".out"
 256 #  define EXT_STYPE_H   ".sth"
 257 #  define EXT_GUARD_C   ".guc"
 258 # else /* ! MSDOS */
 259   /* Standard. */
 260 #  define EXT_TAB       ".tab"
 261 #  define EXT_OUTPUT    ".output"
 262 #  define EXT_STYPE_H   ".stype"
 263 #  define EXT_GUARD_C   ".guard"
 264 # endif /* ! MSDOS */
 265 #endif /* ! VMS */
 266
 267 #if defined (VMS) & !defined (__VMS_POSIX)
 268 # ifndef BISON_SIMPLE
 269 #  define BISON_SIMPLE "GNU_BISON:[000000]BISON.SIMPLE"
 270 # endif
 271 # ifndef BISON_HAIRY
 272 #  define BISON_HARIRY "GNU_BISON:[000000]BISON.HAIRY"
 273 # endif
 274 #endif
 275
 276 #if defined (_MSC_VER)
 277 # ifndef BISON_SIMPLE
 278 #  define BISON_SIMPLE "c:/usr/local/lib/bison.simple"
 279 # endif
 280 # ifndef BISON_HAIRY
 281 #  define BISON_HAIRY "c:/usr/local/lib/bison.hairy"
 282 # endif
 283 #endif
 284
 285
 286 /* As memcpy, but for shorts.  */
 287 #define shortcpy(Dest, Src, Num) \
 288   memcpy (Dest, Src, Num * sizeof (short))
 289
 290 /* Free a linked list. */
 291 #define LIST_FREE(Type, List)                   \
 292 do {                                            \
 293   Type *_node, *_next;                          \
 294   for (_node = List; _node; _node = _next)      \
 295     {                                           \
 296       _next = _node->next;                      \
 297       XFREE (_node);                            \
 298     }                                           \
 299 } while (0)
 300
 301 /*---------------------------------.
 302 | Debugging the memory allocator.  |
 303 `---------------------------------*/
 304
 305 # if WITH_DMALLOC
 306 #  define DMALLOC_FUNC_CHECK
 307 #  include <dmalloc.h>
 308 # endif /* WITH_DMALLOC */
 309
 310 #endif  /* BISON_SYSTEM_H */