src/system.h

   1 /* system-dependent definitions for Bison.
   2    Copyright 2000, 2001, 2002  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_STRSPN
 110 size_t strspn(const char *s, const char *accept);
 111 #endif
 112
 113 #if !HAVE_DECL_STRNLEN
 114 size_t strnlen PARAMS ((const char *s, size_t maxlen));
 115 #endif
 116
 117 #if !HAVE_DECL_MEMCHR
 118 void *memchr PARAMS ((const void *s, int c, size_t n));
 119 #endif
 120
 121 #if !HAVE_DECL_MEMRCHR
 122 void *memrchr PARAMS ((const void *s, int c, size_t n));
 123 #endif
 124
 125
 126
 127 /*-----------------.
 128 | GCC extensions.  |
 129 `-----------------*/
 130
 131 #ifndef __attribute__
 132 /* This feature is available in gcc versions 2.5 and later.  */
 133 # if !defined (__GNUC__) || __GNUC__ < 2 || \
 134 (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
 135 #  define __attribute__(Spec) /* empty */
 136 # endif
 137 /* The __-protected variants of `format' and `printf' attributes
 138    are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
 139 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
 140 #  define __format__ format
 141 #  define __printf__ printf
 142 # endif
 143 #endif
 144
 145
 146 /*------.
 147 | NLS.  |
 148 `------*/
 149
 150 #ifdef HAVE_LOCALE_H
 151 # include <locale.h>
 152 #endif
 153 #ifndef HAVE_SETLOCALE
 154 # define setlocale(Category, Locale)
 155 #endif
 156
 157 #include "gettext.h"
 158 #define _(Msgid)  gettext (Msgid)
 159 #define N_(Msgid) (Msgid)
 160
 161
 162 /*-------------------------------.
 163 | Fix broken compilation flags.  |
 164 `-------------------------------*/
 165
 166 #ifndef LOCALEDIR
 167 # define LOCALEDIR "/usr/local/share/locale"
 168 #endif
 169
 170
 171 /*-----------.
 172 | Booleans.  |
 173 `-----------*/
 174
 175 #ifndef TRUE
 176 # define TRUE   (1)
 177 # define FALSE  (0)
 178 #endif
 179 typedef int bool;
 180
 181
 182 /*-----------.
 183 | Obstacks.  |
 184 `-----------*/
 185
 186 # define obstack_chunk_alloc xmalloc
 187 # define obstack_chunk_free  free
 188 # include "obstack.h"
 189
 190 #define obstack_sgrow(Obs, Str) \
 191   obstack_grow (Obs, Str, strlen (Str))
 192
 193 #define obstack_fgrow1(Obs, Format, Arg1)       \
 194 do {                                            \
 195   char buf[4096];                               \
 196   sprintf (buf, Format, Arg1);                  \
 197   obstack_grow (Obs, buf, strlen (buf));        \
 198 } while (0)
 199
 200 #define obstack_fgrow2(Obs, Format, Arg1, Arg2) \
 201 do {                                            \
 202   char buf[4096];                               \
 203   sprintf (buf, Format, Arg1, Arg2);            \
 204   obstack_grow (Obs, buf, strlen (buf));        \
 205 } while (0)
 206
 207 #define obstack_fgrow3(Obs, Format, Arg1, Arg2, Arg3)   \
 208 do {                                                    \
 209   char buf[4096];                                       \
 210   sprintf (buf, Format, Arg1, Arg2, Arg3);              \
 211   obstack_grow (Obs, buf, strlen (buf));                \
 212 } while (0)
 213
 214 #define obstack_fgrow4(Obs, Format, Arg1, Arg2, Arg3, Arg4)     \
 215 do {                                                            \
 216   char buf[4096];                                               \
 217   sprintf (buf, Format, Arg1, Arg2, Arg3, Arg4);                \
 218   obstack_grow (Obs, buf, strlen (buf));                        \
 219 } while (0)
 220
 221
 222 /*---------------------------------.
 223 | Machine-dependencies for Bison.  |
 224 `---------------------------------*/
 225
 226 #ifdef  eta10
 227 # define        MAXSHORT        2147483647
 228 # define        MINSHORT        -2147483648
 229 #else
 230 # define        MAXSHORT        32767
 231 # define        MINSHORT        -32768
 232 #endif
 233
 234 #if defined (MSDOS) && !defined (__GO32__)
 235 # define MAXTABLE       16383
 236 #else
 237 # define MAXTABLE       32767
 238 #endif
 239
 240 /*-----------------------------------------.
 241 | Extensions to use for the output files.  |
 242 `-----------------------------------------*/
 243
 244 #ifdef VMS
 245   /* VMS. */
 246 # define EXT_TAB        "_tab"
 247 # define EXT_OUTPUT     ".output"
 248 # define EXT_STYPE_H    "_stype"
 249 # define EXT_GUARD_C    "_guard"
 250 #else /* ! VMS */
 251 # ifdef MSDOS
 252    /* MS DOS. */
 253 #  define EXT_TAB       "_tab"
 254 #  define EXT_OUTPUT    ".out"
 255 #  define EXT_STYPE_H   ".sth"
 256 #  define EXT_GUARD_C   ".guc"
 257 # else /* ! MSDOS */
 258   /* Standard. */
 259 #  define EXT_TAB       ".tab"
 260 #  define EXT_OUTPUT    ".output"
 261 #  define EXT_STYPE_H   ".stype"
 262 #  define EXT_GUARD_C   ".guard"
 263 # endif /* ! MSDOS */
 264 #endif /* ! VMS */
 265
 266 #ifndef DEFAULT_TMPDIR
 267 # define DEFAULT_TMPDIR "/tmp"
 268 #endif
 269
 270
 271
 272 /*----------------------------.
 273 | As memcpy, but for shorts.  |
 274 `----------------------------*/
 275
 276 #define shortcpy(Dest, Src, Num) \
 277   memcpy (Dest, Src, Num * sizeof (short))
 278
 279 /*---------------------.
 280 | Free a linked list.  |
 281 `---------------------*/
 282
 283 #define LIST_FREE(Type, List)                   \
 284 do {                                            \
 285   Type *_node, *_next;                          \
 286   for (_node = List; _node; _node = _next)      \
 287     {                                           \
 288       _next = _node->next;                      \
 289       XFREE (_node);                            \
 290     }                                           \
 291 } while (0)
 292
 293
 294 /*---------------------------------------------.
 295 | Debugging memory allocation (must be last).  |
 296 `---------------------------------------------*/
 297
 298 # if WITH_DMALLOC
 299 #  define DMALLOC_FUNC_CHECK
 300 #  include <dmalloc.h>
 301 # endif /* WITH_DMALLOC */
 302
 303 #endif  /* ! BISON_SYSTEM_H */