src/system.h

   1 /* System-dependent definitions for Bison.
   2
   3    Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 Free Software
   4    Foundation, Inc.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2, or (at your option)
   9    any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software Foundation,
  18    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  19
  20 #ifndef BISON_SYSTEM_H
  21 #define BISON_SYSTEM_H
  22
  23 #if HAVE_CONFIG_H
  24 # include <config.h>
  25 #endif
  26
  27 #include <limits.h>
  28 #include <stddef.h>
  29 #include <stdio.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32
  33 #if HAVE_SYS_TYPES_H
  34 # include <sys/types.h>
  35 #endif
  36
  37 #if HAVE_UNISTD_H
  38 # include <unistd.h>
  39 #endif
  40
  41 #if HAVE_INTTYPES_H
  42 # include <inttypes.h>
  43 #endif
  44 #if HAVE_STDINT_H
  45 # include <stdint.h>
  46 #endif
  47
  48 #if ! HAVE_UINTPTR_T
  49 /* This isn't perfect, but it's good enough for Bison, which needs
  50    only to hash pointers.  */
  51 typedef size_t uintptr_t;
  52 #endif
  53
  54 #include <verify.h>
  55 #include <xalloc.h>
  56
  57
  58 /*---------------------.
  59 | Missing prototypes.  |
  60 `---------------------*/
  61
  62 #include <stpcpy.h>
  63
  64
  65 /*-----------------.
  66 | GCC extensions.  |
  67 `-----------------*/
  68
  69 /* Use this to suppress gcc's `...may be used before initialized'
  70    warnings.  */
  71 #ifdef lint
  72 # define IF_LINT(Code) Code
  73 #else
  74 # define IF_LINT(Code) /* empty */
  75 #endif
  76
  77 #ifndef __attribute__
  78 /* This feature is available in gcc versions 2.5 and later.  */
  79 # if !defined (__GNUC__) || __GNUC__ < 2 || \
  80 (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
  81 #  define __attribute__(Spec) /* empty */
  82 # endif
  83 #endif
  84
  85 /* The __-protected variants of `format' and `printf' attributes
  86    are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
  87 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
  88 # define __format__ format
  89 # define __printf__ printf
  90 #endif
  91
  92 #ifndef ATTRIBUTE_NORETURN
  93 # define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
  94 #endif
  95
  96 #ifndef ATTRIBUTE_UNUSED
  97 # define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
  98 #endif
  99
 100 /*------.
 101 | NLS.  |
 102 `------*/
 103
 104 #include <locale.h>
 105
 106 #include <gettext.h>
 107 #define _(Msgid)  gettext (Msgid)
 108 #define N_(Msgid) (Msgid)
 109
 110
 111 /*-------------------------------.
 112 | Fix broken compilation flags.  |
 113 `-------------------------------*/
 114
 115 #ifndef LOCALEDIR
 116 # define LOCALEDIR "/usr/local/share/locale"
 117 #endif
 118
 119
 120 /*-----------.
 121 | Booleans.  |
 122 `-----------*/
 123
 124 #include <stdbool.h>
 125
 126
 127 /*-----------.
 128 | Obstacks.  |
 129 `-----------*/
 130
 131 #define obstack_chunk_alloc xmalloc
 132 #define obstack_chunk_free  free
 133 #include <obstack.h>
 134
 135 #define obstack_sgrow(Obs, Str) \
 136   obstack_grow (Obs, Str, strlen (Str))
 137
 138 #define obstack_fgrow1(Obs, Format, Arg1)       \
 139 do {                                            \
 140   char buf[4096];                               \
 141   sprintf (buf, Format, Arg1);                  \
 142   obstack_grow (Obs, buf, strlen (buf));        \
 143 } while (0)
 144
 145 #define obstack_fgrow2(Obs, Format, Arg1, Arg2) \
 146 do {                                            \
 147   char buf[4096];                               \
 148   sprintf (buf, Format, Arg1, Arg2);            \
 149   obstack_grow (Obs, buf, strlen (buf));        \
 150 } while (0)
 151
 152 #define obstack_fgrow3(Obs, Format, Arg1, Arg2, Arg3)   \
 153 do {                                                    \
 154   char buf[4096];                                       \
 155   sprintf (buf, Format, Arg1, Arg2, Arg3);              \
 156   obstack_grow (Obs, buf, strlen (buf));                \
 157 } while (0)
 158
 159 #define obstack_fgrow4(Obs, Format, Arg1, Arg2, Arg3, Arg4)     \
 160 do {                                                            \
 161   char buf[4096];                                               \
 162   sprintf (buf, Format, Arg1, Arg2, Arg3, Arg4);                \
 163   obstack_grow (Obs, buf, strlen (buf));                        \
 164 } while (0)
 165
 166
 167
 168 /*-----------------------------------------.
 169 | Extensions to use for the output files.  |
 170 `-----------------------------------------*/
 171
 172 #ifndef OUTPUT_EXT
 173 # define OUTPUT_EXT ".output"
 174 #endif
 175
 176 #ifndef TAB_EXT
 177 # define TAB_EXT ".tab"
 178 #endif
 179
 180 #ifndef DEFAULT_TMPDIR
 181 # define DEFAULT_TMPDIR "/tmp"
 182 #endif
 183
 184
 185
 186 /*---------------------.
 187 | Free a linked list.  |
 188 `---------------------*/
 189
 190 #define LIST_FREE(Type, List)                   \
 191 do {                                            \
 192   Type *_node, *_next;                          \
 193   for (_node = List; _node; _node = _next)      \
 194     {                                           \
 195       _next = _node->next;                      \
 196       free (_node);                             \
 197     }                                           \
 198 } while (0)
 199
 200
 201 /*---------------------------------------------.
 202 | Debugging memory allocation (must be last).  |
 203 `---------------------------------------------*/
 204
 205 # if WITH_DMALLOC
 206 #  define DMALLOC_FUNC_CHECK
 207 #  include <dmalloc.h>
 208 # endif /* WITH_DMALLOC */
 209
 210 #endif  /* ! BISON_SYSTEM_H */