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 #ifndef PARAMS
  85 # if defined PROTOTYPES || defined __STDC__
  86 #  define PARAMS(Args) Args
  87 # else
  88 #  define PARAMS(Args) ()
  89 # endif
  90 #endif
  91
  92 # include "xalloc.h"
  93
  94 /* From xstrndup.c.  */
  95 char *xstrndup PARAMS ((const char *s, size_t n));
  96
  97 /*---------------------.
  98 | Missing prototypes.  |
  99 `---------------------*/
 100
 101 #if !HAVE_DECL_STPCPY
 102 char *stpcpy PARAMS ((char *dest, const char *src));
 103 #endif
 104
 105 #if !HAVE_DECL_STRCHR
 106 char *strchr(const char *s, int c);
 107 #endif
 108
 109 #if !HAVE_DECL_STRNDUP
 110 char *strndup PARAMS ((const char *s, size_t size));
 111 #endif
 112
 113 #if !HAVE_DECL_STRSPN
 114 size_t strspn(const char *s, const char *accept);
 115 #endif
 116
 117 #if !HAVE_DECL_STRNLEN
 118 size_t strnlen PARAMS ((const char *s, size_t maxlen));
 119 #endif
 120
 121 #if !HAVE_DECL_MEMCHR
 122 void *memchr PARAMS ((const void *s, int c, size_t n));
 123 #endif
 124
 125 #if !HAVE_DECL_MEMRCHR
 126 void *memrchr PARAMS ((const void *s, int c, size_t n));
 127 #endif
 128
 129
 130
 131 /*-----------------.
 132 | GCC extensions.  |
 133 `-----------------*/
 134
 135 #ifndef __attribute__
 136 /* This feature is available in gcc versions 2.5 and later.  */
 137 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
 138 #  define __attribute__(Spec) /* empty */
 139 # endif
 140 /* The __-protected variants of `format' and `printf' attributes
 141    are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
 142 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
 143 #  define __format__ format
 144 #  define __printf__ printf
 145 # endif
 146 #endif
 147
 148
 149 /*------.
 150 | NLS.  |
 151 `------*/
 152
 153 #ifdef HAVE_LOCALE_H
 154 # include <locale.h>
 155 #endif
 156 #ifndef HAVE_SETLOCALE
 157 # define setlocale(Category, Locale)
 158 #endif
 159
 160 #include "libgettext.h"
 161 #define _(Msgid)  gettext (Msgid)
 162 #define N_(Msgid) (Msgid)
 163
 164
 165 /*-------------------------------.
 166 | Fix broken compilation flags.  |
 167 `-------------------------------*/
 168
 169 #ifndef LOCALEDIR
 170 # define LOCALEDIR "/usr/local/share/locale"
 171 #endif
 172
 173
 174 /*-----------.
 175 | Booleans.  |
 176 `-----------*/
 177
 178 #ifndef TRUE
 179 # define TRUE   (1)
 180 # define FALSE  (0)
 181 #endif
 182 typedef int bool;
 183
 184
 185 /*-----------.
 186 | Obstacks.  |
 187 `-----------*/
 188
 189 # define obstack_chunk_alloc xmalloc
 190 # define obstack_chunk_free  free
 191 # include "obstack.h"
 192
 193 #define obstack_sgrow(Obs, Str) \
 194   obstack_grow (Obs, Str, strlen (Str))
 195
 196 #define obstack_fgrow1(Obs, Format, Arg1)       \
 197 do {                                            \
 198   char buf[4096];                               \
 199   sprintf (buf, Format, Arg1);                  \
 200   obstack_grow (Obs, buf, strlen (buf));        \
 201 } while (0)
 202
 203 #define obstack_fgrow2(Obs, Format, Arg1, Arg2) \
 204 do {                                            \
 205   char buf[4096];                               \
 206   sprintf (buf, Format, Arg1, Arg2);            \
 207   obstack_grow (Obs, buf, strlen (buf));        \
 208 } while (0)
 209
 210 #define obstack_fgrow3(Obs, Format, Arg1, Arg2, Arg3)   \
 211 do {                                                    \
 212   char buf[4096];                                       \
 213   sprintf (buf, Format, Arg1, Arg2, Arg3);              \
 214   obstack_grow (Obs, buf, strlen (buf));                \
 215 } while (0)
 216
 217 #define obstack_fgrow4(Obs, Format, Arg1, Arg2, Arg3, Arg4)     \
 218 do {                                                            \
 219   char buf[4096];                                               \
 220   sprintf (buf, Format, Arg1, Arg2, Arg3, Arg4);                \
 221   obstack_grow (Obs, buf, strlen (buf));                        \
 222 } while (0)
 223
 224
 225 /*---------------------------------.
 226 | Machine-dependencies for Bison.  |
 227 `---------------------------------*/
 228
 229 #ifdef  eta10
 230 # define        MAXSHORT        2147483647
 231 # define        MINSHORT        -2147483648
 232 #else
 233 # define        MAXSHORT        32767
 234 # define        MINSHORT        -32768
 235 #endif
 236
 237 #if defined (MSDOS) && !defined (__GO32__)
 238 # define        BITS_PER_WORD   16
 239 # define MAXTABLE       16383
 240 #else
 241 # define        BITS_PER_WORD   32
 242 # define MAXTABLE       32767
 243 #endif
 244
 245 #define WORDSIZE(n)     (((n) + BITS_PER_WORD - 1) / BITS_PER_WORD)
 246 #define SETBIT(x, i)    ((x)[(i)/BITS_PER_WORD] |= (1<<((i) % BITS_PER_WORD)))
 247 #define RESETBIT(x, i)  ((x)[(i)/BITS_PER_WORD] &= ~(1<<((i) % BITS_PER_WORD)))
 248 #define BITISSET(x, i)  (((x)[(i)/BITS_PER_WORD] & (1<<((i) % BITS_PER_WORD))) != 0)
 249
 250
 251 /* Extensions to use for the output files. */
 252
 253 #ifdef VMS
 254   /* VMS. */
 255 # define EXT_TAB        "_tab"
 256 # define EXT_OUTPUT     ".output"
 257 # define EXT_STYPE_H    "_stype"
 258 # define EXT_GUARD_C    "_guard"
 259 #else /* ! VMS */
 260 # ifdef MSDOS
 261    /* MS DOS. */
 262 #  define EXT_TAB       "_tab"
 263 #  define EXT_OUTPUT    ".out"
 264 #  define EXT_STYPE_H   ".sth"
 265 #  define EXT_GUARD_C   ".guc"
 266 # else /* ! MSDOS */
 267   /* Standard. */
 268 #  define EXT_TAB       ".tab"
 269 #  define EXT_OUTPUT    ".output"
 270 #  define EXT_STYPE_H   ".stype"
 271 #  define EXT_GUARD_C   ".guard"
 272 # endif /* ! MSDOS */
 273 #endif /* ! VMS */
 274
 275 #if defined (VMS) & !defined (__VMS_POSIX)
 276 # ifndef BISON_SIMPLE
 277 #  define BISON_SIMPLE "GNU_BISON:[000000]BISON.SIMPLE"
 278 # endif
 279 # ifndef BISON_HAIRY
 280 #  define BISON_HARIRY "GNU_BISON:[000000]BISON.HAIRY"
 281 # endif
 282 #endif
 283
 284 #if defined (_MSC_VER)
 285 # ifndef BISON_SIMPLE
 286 #  define BISON_SIMPLE "c:/usr/local/lib/bison.simple"
 287 # endif
 288 # ifndef BISON_HAIRY
 289 #  define BISON_HAIRY "c:/usr/local/lib/bison.hairy"
 290 # endif
 291 #endif
 292
 293
 294 /* As memcpy, but for shorts.  */
 295 #define shortcpy(Dest, Src, Num) \
 296   memcpy (Dest, Src, Num * sizeof (short))
 297
 298 /* Free a linked list. */
 299 #define LIST_FREE(Type, List)                   \
 300 do {                                            \
 301   Type *_node, *_next;                          \
 302   for (_node = List; _node; _node = _next)      \
 303     {                                           \
 304       _next = _node->next;                      \
 305       XFREE (_node);                            \
 306     }                                           \
 307 } while (0)
 308
 309 /*---------------------------------.
 310 | Debugging the memory allocator.  |
 311 `---------------------------------*/
 312
 313 # if WITH_DMALLOC
 314 #  define DMALLOC_FUNC_CHECK
 315 #  include <dmalloc.h>
 316 # endif /* WITH_DMALLOC */
 317
 318 #endif  /* ! BISON_SYSTEM_H */