src/system.h

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