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 #if HAVE_LIMITS_H
  93 # include <limits.h>
  94 #endif
  95 #ifndef SHRT_MIN
  96 # define SHRT_MIN (-32768)
  97 #endif
  98 #ifndef SHRT_MAX
  99 # define SHRT_MAX 32767
 100 #endif
 101
 102 # include "xalloc.h"
 103
 104 /* From xstrndup.c.  */
 105 char *xstrndup PARAMS ((const char *s, size_t n));
 106
 107 /*---------------------.
 108 | Missing prototypes.  |
 109 `---------------------*/
 110
 111 #if !HAVE_DECL_STPCPY
 112 char *stpcpy PARAMS ((char *dest, const char *src));
 113 #endif
 114
 115 #if !HAVE_DECL_STRCHR
 116 char *strchr(const char *s, int c);
 117 #endif
 118
 119 #if !HAVE_DECL_STRSPN
 120 size_t strspn(const char *s, const char *accept);
 121 #endif
 122
 123 #if !HAVE_DECL_STRNLEN
 124 size_t strnlen PARAMS ((const char *s, size_t maxlen));
 125 #endif
 126
 127 #if !HAVE_DECL_MEMCHR
 128 void *memchr PARAMS ((const void *s, int c, size_t n));
 129 #endif
 130
 131 #if !HAVE_DECL_MEMRCHR
 132 void *memrchr PARAMS ((const void *s, int c, size_t n));
 133 #endif
 134
 135
 136
 137 /*-----------------.
 138 | GCC extensions.  |
 139 `-----------------*/
 140
 141 #ifndef __attribute__
 142 /* This feature is available in gcc versions 2.5 and later.  */
 143 # if !defined (__GNUC__) || __GNUC__ < 2 || \
 144 (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
 145 #  define __attribute__(Spec) /* empty */
 146 # endif
 147 /* The __-protected variants of `format' and `printf' attributes
 148    are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
 149 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
 150 #  define __format__ format
 151 #  define __printf__ printf
 152 # endif
 153 #endif
 154
 155
 156 /*------.
 157 | NLS.  |
 158 `------*/
 159
 160 #ifdef HAVE_LOCALE_H
 161 # include <locale.h>
 162 #endif
 163 #ifndef HAVE_SETLOCALE
 164 # define setlocale(Category, Locale)
 165 #endif
 166
 167 #include "gettext.h"
 168 #define _(Msgid)  gettext (Msgid)
 169 #define N_(Msgid) (Msgid)
 170
 171
 172 /*-------------------------------.
 173 | Fix broken compilation flags.  |
 174 `-------------------------------*/
 175
 176 #ifndef LOCALEDIR
 177 # define LOCALEDIR "/usr/local/share/locale"
 178 #endif
 179
 180
 181 /*-----------.
 182 | Booleans.  |
 183 `-----------*/
 184
 185 #ifndef TRUE
 186 # define TRUE   (1)
 187 # define FALSE  (0)
 188 #endif
 189 typedef int bool;
 190
 191
 192 /*-----------.
 193 | Obstacks.  |
 194 `-----------*/
 195
 196 # define obstack_chunk_alloc xmalloc
 197 # define obstack_chunk_free  free
 198 # include "obstack.h"
 199
 200 #define obstack_sgrow(Obs, Str) \
 201   obstack_grow (Obs, Str, strlen (Str))
 202
 203 #define obstack_fgrow1(Obs, Format, Arg1)       \
 204 do {                                            \
 205   char buf[4096];                               \
 206   sprintf (buf, Format, Arg1);                  \
 207   obstack_grow (Obs, buf, strlen (buf));        \
 208 } while (0)
 209
 210 #define obstack_fgrow2(Obs, Format, Arg1, Arg2) \
 211 do {                                            \
 212   char buf[4096];                               \
 213   sprintf (buf, Format, Arg1, Arg2);            \
 214   obstack_grow (Obs, buf, strlen (buf));        \
 215 } while (0)
 216
 217 #define obstack_fgrow3(Obs, Format, Arg1, Arg2, Arg3)   \
 218 do {                                                    \
 219   char buf[4096];                                       \
 220   sprintf (buf, Format, Arg1, Arg2, Arg3);              \
 221   obstack_grow (Obs, buf, strlen (buf));                \
 222 } while (0)
 223
 224 #define obstack_fgrow4(Obs, Format, Arg1, Arg2, Arg3, Arg4)     \
 225 do {                                                            \
 226   char buf[4096];                                               \
 227   sprintf (buf, Format, Arg1, Arg2, Arg3, Arg4);                \
 228   obstack_grow (Obs, buf, strlen (buf));                        \
 229 } while (0)
 230
 231
 232
 233 /*-----------------------------------------.
 234 | Extensions to use for the output files.  |
 235 `-----------------------------------------*/
 236
 237 #ifdef VMS
 238   /* VMS. */
 239 # define EXT_TAB        "_tab"
 240 # define EXT_OUTPUT     ".output"
 241 # define EXT_STYPE_H    "_stype"
 242 # define EXT_GUARD_C    "_guard"
 243 #else /* ! VMS */
 244 # ifdef MSDOS
 245    /* MS DOS. */
 246 #  define EXT_TAB       "_tab"
 247 #  define EXT_OUTPUT    ".out"
 248 #  define EXT_STYPE_H   ".sth"
 249 #  define EXT_GUARD_C   ".guc"
 250 # else /* ! MSDOS */
 251   /* Standard. */
 252 #  define EXT_TAB       ".tab"
 253 #  define EXT_OUTPUT    ".output"
 254 #  define EXT_STYPE_H   ".stype"
 255 #  define EXT_GUARD_C   ".guard"
 256 # endif /* ! MSDOS */
 257 #endif /* ! VMS */
 258
 259 #ifndef DEFAULT_TMPDIR
 260 # define DEFAULT_TMPDIR "/tmp"
 261 #endif
 262
 263
 264
 265 /*---------------------.
 266 | Free a linked list.  |
 267 `---------------------*/
 268
 269 #define LIST_FREE(Type, List)                   \
 270 do {                                            \
 271   Type *_node, *_next;                          \
 272   for (_node = List; _node; _node = _next)      \
 273     {                                           \
 274       _next = _node->next;                      \
 275       XFREE (_node);                            \
 276     }                                           \
 277 } while (0)
 278
 279
 280 /*---------------------------------------------.
 281 | Debugging memory allocation (must be last).  |
 282 `---------------------------------------------*/
 283
 284 # if WITH_DMALLOC
 285 #  define DMALLOC_FUNC_CHECK
 286 #  include <dmalloc.h>
 287 # endif /* WITH_DMALLOC */
 288
 289 #endif  /* ! BISON_SYSTEM_H */