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 #if HAVE_UNISTD_H
  44 # include <unistd.h>
  45 #endif
  46
  47 #if defined(STDC_HEADERS) || defined(HAVE_STRING_H)
  48 # include <string.h>
  49 /* An ANSI string.h and pre-ANSI memory.h might conflict.  */
  50 # if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
  51 #  include <memory.h>
  52 # endif /* not STDC_HEADERS and HAVE_MEMORY_H */
  53 # ifndef bcopy
  54 #  define bcopy(src, dst, num) memcpy((dst), (src), (num))
  55 # endif
  56 #else /* not STDC_HEADERS and not HAVE_STRING_H */
  57 # include <strings.h>
  58 /* memory.h and strings.h conflict on some systems.  */
  59 #endif /* not STDC_HEADERS and not HAVE_STRING_H */
  60
  61 #if defined(STDC_HEADERS) || defined(HAVE_CTYPE_H)
  62 # include <ctype.h>
  63 #endif
  64
  65 #include <errno.h>
  66 #ifndef errno
  67 extern int errno;
  68 #endif
  69
  70 #if PROTOTYPES
  71 # define PARAMS(p) p
  72 #else
  73 # define PARAMS(p) ()
  74 #endif
  75
  76 # include "xalloc.h"
  77
  78 /*---------------------.
  79 | Missing prototypes.  |
  80 `---------------------*/
  81
  82 #if !HAVE_DECL_STPCPY
  83 char *stpcpy PARAMS ((char *dest, const char *src));
  84 #endif
  85
  86 #if !HAVE_DECL_STRNDUP
  87 char *strndup PARAMS ((const char *s, size_t size));
  88 #endif
  89
  90 #if !HAVE_DECL_STRNLEN
  91 size_t strnlen PARAMS ((const char *s, size_t maxlen));
  92 #endif
  93
  94
  95
  96 /*-----------------.
  97 | GCC extensions.  |
  98 `-----------------*/
  99
 100 #ifndef __attribute__
 101 /* This feature is available in gcc versions 2.5 and later.  */
 102 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
 103 #  define __attribute__(Spec) /* empty */
 104 # endif
 105 /* The __-protected variants of `format' and `printf' attributes
 106    are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
 107 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
 108 #  define __format__ format
 109 #  define __printf__ printf
 110 # endif
 111 #endif
 112
 113
 114 /*------.
 115 | NLS.  |
 116 `------*/
 117
 118 #ifdef HAVE_LOCALE_H
 119 # include <locale.h>
 120 #endif
 121 #ifndef HAVE_SETLOCALE
 122 # define setlocale(Category, Locale)
 123 #endif
 124
 125 #ifdef ENABLE_NLS
 126 # include <libintl.h>
 127 # define _(Text) gettext (Text)
 128 #else
 129 # undef  bindtextdomain
 130 # define bindtextdomain(Domain, Directory)
 131 # undef  textdomain
 132 # define textdomain(Domain)
 133 # undef  ngettext
 134 # define ngettext(Singular, Plural, Number)   \
 135          ((Number == 1) ? Singular : Plural)
 136 # define _(Text) Text
 137 #endif
 138 #define N_(Text) Text
 139
 140
 141 /*-------------------------------.
 142 | Fix broken compilation flags.  |
 143 `-------------------------------*/
 144
 145 #ifndef LOCALEDIR
 146 # define LOCALEDIR "/usr/local/share/locale"
 147 #endif
 148
 149
 150 /*-----------.
 151 | Booleans.  |
 152 `-----------*/
 153
 154 #ifndef TRUE
 155 # define TRUE   (1)
 156 # define FALSE  (0)
 157 #endif
 158 typedef int bool;
 159
 160
 161 /*-----------.
 162 | Obstacks.  |
 163 `-----------*/
 164
 165 # define obstack_chunk_alloc xmalloc
 166 # define obstack_chunk_free  free
 167 # include "obstack.h"
 168
 169 #define obstack_sgrow(Obs, Str) \
 170   obstack_grow (Obs, Str, strlen (Str))
 171
 172 #define obstack_fgrow1(Obs, Format, Arg1)       \
 173 do {                                            \
 174   char buf[4096];                               \
 175   sprintf (buf, Format, Arg1);                  \
 176   obstack_grow (Obs, buf, strlen (buf));        \
 177 } while (0)
 178
 179 #define obstack_fgrow2(Obs, Format, Arg1, Arg2) \
 180 do {                                            \
 181   char buf[4096];                               \
 182   sprintf (buf, Format, Arg1, Arg2);            \
 183   obstack_grow (Obs, buf, strlen (buf));        \
 184 } while (0)
 185
 186 #define obstack_fgrow3(Obs, Format, Arg1, Arg2, Arg3)   \
 187 do {                                                    \
 188   char buf[4096];                                       \
 189   sprintf (buf, Format, Arg1, Arg2, Arg3);              \
 190   obstack_grow (Obs, buf, strlen (buf));                \
 191 } while (0)
 192
 193 #define obstack_fgrow4(Obs, Format, Arg1, Arg2, Arg3, Arg4)     \
 194 do {                                                            \
 195   char buf[4096];                                               \
 196   sprintf (buf, Format, Arg1, Arg2, Arg3, Arg4);                \
 197   obstack_grow (Obs, buf, strlen (buf));                        \
 198 } while (0)
 199
 200
 201 /*---------------------------------.
 202 | Machine-dependencies for Bison.  |
 203 `---------------------------------*/
 204
 205 #ifdef  eta10
 206 # define        MAXSHORT        2147483647
 207 # define        MINSHORT        -2147483648
 208 #else
 209 # define        MAXSHORT        32767
 210 # define        MINSHORT        -32768
 211 #endif
 212
 213 #if defined (MSDOS) && !defined (__GO32__)
 214 # define        BITS_PER_WORD   16
 215 # define MAXTABLE       16383
 216 #else
 217 # define        BITS_PER_WORD   32
 218 # define MAXTABLE       32767
 219 #endif
 220
 221 #define WORDSIZE(n)     (((n) + BITS_PER_WORD - 1) / BITS_PER_WORD)
 222 #define SETBIT(x, i)    ((x)[(i)/BITS_PER_WORD] |= (1<<((i) % BITS_PER_WORD)))
 223 #define RESETBIT(x, i)  ((x)[(i)/BITS_PER_WORD] &= ~(1<<((i) % BITS_PER_WORD)))
 224 #define BITISSET(x, i)  (((x)[(i)/BITS_PER_WORD] & (1<<((i) % BITS_PER_WORD))) != 0)
 225
 226
 227 /* Extensions to use for the output files. */
 228
 229 #ifdef VMS
 230   /* VMS. */
 231 # define EXT_TAB        "_tab"
 232 # define EXT_OUTPUT     ".output"
 233 # define EXT_STYPE_H    "_stype"
 234 # define EXT_GUARD_C    "_guard"
 235 #else /* ! VMS */
 236 # ifdef MSDOS
 237    /* MS DOS. */
 238 #  define EXT_TAB       "_tab"
 239 #  define EXT_OUTPUT    ".out"
 240 #  define EXT_STYPE_H   ".sth"
 241 #  define EXT_GUARD_C   ".guc"
 242 # else /* ! MSDOS */
 243   /* Standard. */
 244 #  define EXT_TAB       ".tab"
 245 #  define EXT_OUTPUT    ".output"
 246 #  define EXT_STYPE_H   ".stype"
 247 #  define EXT_GUARD_C   ".guard"
 248 # endif /* ! MSDOS */
 249 #endif /* ! VMS */
 250
 251 #if defined (VMS) & !defined (__VMS_POSIX)
 252 # ifndef BISON_SIMPLE
 253 #  define BISON_SIMPLE "GNU_BISON:[000000]BISON.SIMPLE"
 254 # endif
 255 # ifndef BISON_HAIRY
 256 #  define BISON_HARIRY "GNU_BISON:[000000]BISON.HAIRY"
 257 # endif
 258 #endif
 259
 260 #if defined (_MSC_VER)
 261 # ifndef BISON_SIMPLE
 262 #  define BISON_SIMPLE "c:/usr/local/lib/bison.simple"
 263 # endif
 264 # ifndef BISON_HAIRY
 265 #  define BISON_HAIRY "c:/usr/local/lib/bison.hairy"
 266 # endif
 267 #endif
 268
 269
 270 /*---------------------------------.
 271 | Debugging the memory allocator.  |
 272 `---------------------------------*/
 273
 274 # if WITH_DMALLOC
 275 #  define DMALLOC_FUNC_CHECK
 276 #  include <dmalloc.h>
 277 # endif /* WITH_DMALLOC */
 278
 279 #endif  /* BISON_SYSTEM_H */