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 #if HAVE_STDLIB_H
  30 # include <stdlib.h>
  31 #endif
  32
  33 /* The following test is to work around the gross typo in
  34    systems like Sony NEWS-OS Release 4.0C, whereby EXIT_FAILURE
  35    is defined to 0, not 1.  */
  36 #if !EXIT_FAILURE
  37 # undef EXIT_FAILURE
  38 # define EXIT_FAILURE 1
  39 #endif
  40
  41 #ifndef EXIT_SUCCESS
  42 # define EXIT_SUCCESS 0
  43 #endif
  44
  45 #if HAVE_UNISTD_H
  46 # include <unistd.h>
  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 #else /* not STDC_HEADERS and not HAVE_STRING_H */
  56 # include <strings.h>
  57 /* memory.h and strings.h conflict on some systems.  */
  58 #endif /* not STDC_HEADERS and not HAVE_STRING_H */
  59
  60 #if defined(STDC_HEADERS) || defined(HAVE_CTYPE_H)
  61 # include <ctype.h>
  62 #endif
  63
  64 #include <errno.h>
  65 #ifndef errno
  66 extern int errno;
  67 #endif
  68
  69 /* AIX requires this to be the first thing in the file.  */
  70 #ifndef __GNUC__
  71 # if HAVE_ALLOCA_H
  72 #  include <alloca.h>
  73 # else
  74 #  ifdef _AIX
  75  #pragma alloca
  76 #  else
  77 #   ifndef alloca /* predefined by HP cc +Olibcalls */
  78 char *alloca ();
  79 #   endif
  80 #  endif
  81 # endif
  82 #endif
  83
  84 #if PROTOTYPES
  85 # define PARAMS(p) p
  86 #else
  87 # define PARAMS(p) ()
  88 #endif
  89
  90 # include "xalloc.h"
  91
  92 /* From xstrndup.c.  */
  93 char *xstrndup PARAMS ((const char *s, size_t n));
  94
  95 /*---------------------.
  96 | Missing prototypes.  |
  97 `---------------------*/
  98
  99 #if !HAVE_DECL_STPCPY
 100 char *stpcpy PARAMS ((char *dest, const char *src));
 101 #endif
 102
 103 #if !HAVE_DECL_STRCHR
 104 char *strchr(const char *s, int c);
 105 #endif
 106
 107 #if !HAVE_DECL_STRNDUP
 108 char *strndup PARAMS ((const char *s, size_t size));
 109 #endif
 110
 111 #if !HAVE_DECL_STRSPN
 112 size_t strspn(const char *s, const char *accept);
 113 #endif
 114
 115 #if !HAVE_DECL_STRNLEN
 116 size_t strnlen PARAMS ((const char *s, size_t maxlen));
 117 #endif
 118
 119 #if !HAVE_DECL_MEMCHR
 120 void *memchr(const void *s, int c, size_t n);
 121 #endif
 122
 123
 124
 125 /*-----------------.
 126 | GCC extensions.  |
 127 `-----------------*/
 128
 129 #ifndef __attribute__
 130 /* This feature is available in gcc versions 2.5 and later.  */
 131 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
 132 #  define __attribute__(Spec) /* empty */
 133 # endif
 134 /* The __-protected variants of `format' and `printf' attributes
 135    are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
 136 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
 137 #  define __format__ format
 138 #  define __printf__ printf
 139 # endif
 140 #endif
 141
 142
 143 /*------.
 144 | NLS.  |
 145 `------*/
 146
 147 #ifdef HAVE_LOCALE_H
 148 # include <locale.h>
 149 #endif
 150 #ifndef HAVE_SETLOCALE
 151 # define setlocale(Category, Locale)
 152 #endif
 153
 154 #include "libgettext.h"
 155 #define _(Msgid)  gettext (Msgid)
 156 #define N_(Msgid) (Msgid)
 157
 158
 159 /*-------------------------------.
 160 | Fix broken compilation flags.  |
 161 `-------------------------------*/
 162
 163 #ifndef LOCALEDIR
 164 # define LOCALEDIR "/usr/local/share/locale"
 165 #endif
 166
 167
 168 /*-----------.
 169 | Booleans.  |
 170 `-----------*/
 171
 172 #ifndef TRUE
 173 # define TRUE   (1)
 174 # define FALSE  (0)
 175 #endif
 176 typedef int bool;
 177
 178
 179 /*-----------.
 180 | Obstacks.  |
 181 `-----------*/
 182
 183 # define obstack_chunk_alloc xmalloc
 184 # define obstack_chunk_free  free
 185 # include "obstack.h"
 186
 187 #define obstack_sgrow(Obs, Str) \
 188   obstack_grow (Obs, Str, strlen (Str))
 189
 190 #define obstack_fgrow1(Obs, Format, Arg1)       \
 191 do {                                            \
 192   char buf[4096];                               \
 193   sprintf (buf, Format, Arg1);                  \
 194   obstack_grow (Obs, buf, strlen (buf));        \
 195 } while (0)
 196
 197 #define obstack_fgrow2(Obs, Format, Arg1, Arg2) \
 198 do {                                            \
 199   char buf[4096];                               \
 200   sprintf (buf, Format, Arg1, Arg2);            \
 201   obstack_grow (Obs, buf, strlen (buf));        \
 202 } while (0)
 203
 204 #define obstack_fgrow3(Obs, Format, Arg1, Arg2, Arg3)   \
 205 do {                                                    \
 206   char buf[4096];                                       \
 207   sprintf (buf, Format, Arg1, Arg2, Arg3);              \
 208   obstack_grow (Obs, buf, strlen (buf));                \
 209 } while (0)
 210
 211 #define obstack_fgrow4(Obs, Format, Arg1, Arg2, Arg3, Arg4)     \
 212 do {                                                            \
 213   char buf[4096];                                               \
 214   sprintf (buf, Format, Arg1, Arg2, Arg3, Arg4);                \
 215   obstack_grow (Obs, buf, strlen (buf));                        \
 216 } while (0)
 217
 218
 219 /*---------------------------------.
 220 | Machine-dependencies for Bison.  |
 221 `---------------------------------*/
 222
 223 #ifdef  eta10
 224 # define        MAXSHORT        2147483647
 225 # define        MINSHORT        -2147483648
 226 #else
 227 # define        MAXSHORT        32767
 228 # define        MINSHORT        -32768
 229 #endif
 230
 231 #if defined (MSDOS) && !defined (__GO32__)
 232 # define        BITS_PER_WORD   16
 233 # define MAXTABLE       16383
 234 #else
 235 # define        BITS_PER_WORD   32
 236 # define MAXTABLE       32767
 237 #endif
 238
 239 #define WORDSIZE(n)     (((n) + BITS_PER_WORD - 1) / BITS_PER_WORD)
 240 #define SETBIT(x, i)    ((x)[(i)/BITS_PER_WORD] |= (1<<((i) % BITS_PER_WORD)))
 241 #define RESETBIT(x, i)  ((x)[(i)/BITS_PER_WORD] &= ~(1<<((i) % BITS_PER_WORD)))
 242 #define BITISSET(x, i)  (((x)[(i)/BITS_PER_WORD] & (1<<((i) % BITS_PER_WORD))) != 0)
 243
 244
 245 /* Extensions to use for the output files. */
 246
 247 #ifdef VMS
 248   /* VMS. */
 249 # define EXT_TAB        "_tab"
 250 # define EXT_OUTPUT     ".output"
 251 # define EXT_STYPE_H    "_stype"
 252 # define EXT_GUARD_C    "_guard"
 253 #else /* ! VMS */
 254 # ifdef MSDOS
 255    /* MS DOS. */
 256 #  define EXT_TAB       "_tab"
 257 #  define EXT_OUTPUT    ".out"
 258 #  define EXT_STYPE_H   ".sth"
 259 #  define EXT_GUARD_C   ".guc"
 260 # else /* ! MSDOS */
 261   /* Standard. */
 262 #  define EXT_TAB       ".tab"
 263 #  define EXT_OUTPUT    ".output"
 264 #  define EXT_STYPE_H   ".stype"
 265 #  define EXT_GUARD_C   ".guard"
 266 # endif /* ! MSDOS */
 267 #endif /* ! VMS */
 268
 269 #if defined (VMS) & !defined (__VMS_POSIX)
 270 # ifndef BISON_SIMPLE
 271 #  define BISON_SIMPLE "GNU_BISON:[000000]BISON.SIMPLE"
 272 # endif
 273 # ifndef BISON_HAIRY
 274 #  define BISON_HARIRY "GNU_BISON:[000000]BISON.HAIRY"
 275 # endif
 276 #endif
 277
 278 #if defined (_MSC_VER)
 279 # ifndef BISON_SIMPLE
 280 #  define BISON_SIMPLE "c:/usr/local/lib/bison.simple"
 281 # endif
 282 # ifndef BISON_HAIRY
 283 #  define BISON_HAIRY "c:/usr/local/lib/bison.hairy"
 284 # endif
 285 #endif
 286
 287
 288 /* As memcpy, but for shorts.  */
 289 #define shortcpy(Dest, Src, Num) \
 290   memcpy (Dest, Src, Num * sizeof (short))
 291
 292 /* Free a linked list. */
 293 #define LIST_FREE(Type, List)                   \
 294 do {                                            \
 295   Type *_node, *_next;                          \
 296   for (_node = List; _node; _node = _next)      \
 297     {                                           \
 298       _next = _node->next;                      \
 299       XFREE (_node);                            \
 300     }                                           \
 301 } while (0)
 302
 303 /*---------------------------------.
 304 | Debugging the memory allocator.  |
 305 `---------------------------------*/
 306
 307 # if WITH_DMALLOC
 308 #  define DMALLOC_FUNC_CHECK
 309 #  include <dmalloc.h>
 310 # endif /* WITH_DMALLOC */
 311
 312 #endif  /* ! BISON_SYSTEM_H */