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 <stdlib.h>
  30 #include <string.h>
  31
  32 #include "unlocked-io.h"
  33
  34 #if HAVE_SYS_TYPES_H
  35 # include <sys/types.h>
  36 #endif
  37
  38 #if HAVE_UNISTD_H
  39 # include <unistd.h>
  40 #endif
  41
  42 #if HAVE_INTTYPES_H
  43 # include <inttypes.h>
  44 #endif
  45 #if HAVE_STDINT_H
  46 # include <stdint.h>
  47 #endif
  48
  49 #if ! HAVE_UINTPTR_T
  50 /* This isn't perfect, but it's good enough for Bison, which needs
  51    only to hash pointers.  */
  52 typedef size_t uintptr_t;
  53 #endif
  54
  55 #include <assert.h>
  56
  57 #include <verify.h>
  58 #include <xalloc.h>
  59
  60
  61 /*---------------------.
  62 | Missing prototypes.  |
  63 `---------------------*/
  64
  65 #include <stpcpy.h>
  66
  67 /* From lib/basename.c. */
  68 char *base_name (char const *name);
  69
  70
  71 /*-----------------.
  72 | GCC extensions.  |
  73 `-----------------*/
  74
  75 /* Use this to suppress gcc's `...may be used before initialized'
  76    warnings.  */
  77 #ifdef lint
  78 # define IF_LINT(Code) Code
  79 #else
  80 # define IF_LINT(Code) /* empty */
  81 #endif
  82
  83 #ifndef __attribute__
  84 /* This feature is available in gcc versions 2.5 and later.  */
  85 # if !defined (__GNUC__) || __GNUC__ < 2 || \
  86 (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
  87 #  define __attribute__(Spec) /* empty */
  88 # endif
  89 #endif
  90
  91 /* The __-protected variants of `format' and `printf' attributes
  92    are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
  93 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
  94 # define __format__ format
  95 # define __printf__ printf
  96 #endif
  97
  98 #ifndef ATTRIBUTE_NORETURN
  99 # define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
 100 #endif
 101
 102 #ifndef ATTRIBUTE_UNUSED
 103 # define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
 104 #endif
 105
 106 /*------.
 107 | NLS.  |
 108 `------*/
 109
 110 #include <locale.h>
 111
 112 #include <gettext.h>
 113 #define _(Msgid)  gettext (Msgid)
 114 #define N_(Msgid) (Msgid)
 115
 116
 117 /*-------------------------------.
 118 | Fix broken compilation flags.  |
 119 `-------------------------------*/
 120
 121 #ifndef LOCALEDIR
 122 # define LOCALEDIR "/usr/local/share/locale"
 123 #endif
 124
 125
 126 /*-----------.
 127 | Booleans.  |
 128 `-----------*/
 129
 130 #include <stdbool.h>
 131
 132
 133 /*-----------.
 134 | Obstacks.  |
 135 `-----------*/
 136
 137 #define obstack_chunk_alloc xmalloc
 138 #define obstack_chunk_free  free
 139 #include <obstack.h>
 140
 141 #define obstack_sgrow(Obs, Str) \
 142   obstack_grow (Obs, Str, strlen (Str))
 143
 144 #define obstack_fgrow1(Obs, Format, Arg1)       \
 145 do {                                            \
 146   char buf[4096];                               \
 147   sprintf (buf, Format, Arg1);                  \
 148   obstack_grow (Obs, buf, strlen (buf));        \
 149 } while (0)
 150
 151 #define obstack_fgrow2(Obs, Format, Arg1, Arg2) \
 152 do {                                            \
 153   char buf[4096];                               \
 154   sprintf (buf, Format, Arg1, Arg2);            \
 155   obstack_grow (Obs, buf, strlen (buf));        \
 156 } while (0)
 157
 158 #define obstack_fgrow3(Obs, Format, Arg1, Arg2, Arg3)   \
 159 do {                                                    \
 160   char buf[4096];                                       \
 161   sprintf (buf, Format, Arg1, Arg2, Arg3);              \
 162   obstack_grow (Obs, buf, strlen (buf));                \
 163 } while (0)
 164
 165 #define obstack_fgrow4(Obs, Format, Arg1, Arg2, Arg3, Arg4)     \
 166 do {                                                            \
 167   char buf[4096];                                               \
 168   sprintf (buf, Format, Arg1, Arg2, Arg3, Arg4);                \
 169   obstack_grow (Obs, buf, strlen (buf));                        \
 170 } while (0)
 171
 172
 173
 174 /*-----------------------------------------.
 175 | Extensions to use for the output files.  |
 176 `-----------------------------------------*/
 177
 178 #ifndef OUTPUT_EXT
 179 # define OUTPUT_EXT ".output"
 180 #endif
 181
 182 #ifndef TAB_EXT
 183 # define TAB_EXT ".tab"
 184 #endif
 185
 186 #ifndef DEFAULT_TMPDIR
 187 # define DEFAULT_TMPDIR "/tmp"
 188 #endif
 189
 190
 191
 192 /*---------------------.
 193 | Free a linked list.  |
 194 `---------------------*/
 195
 196 #define LIST_FREE(Type, List)                   \
 197 do {                                            \
 198   Type *_node, *_next;                          \
 199   for (_node = List; _node; _node = _next)      \
 200     {                                           \
 201       _next = _node->next;                      \
 202       free (_node);                             \
 203     }                                           \
 204 } while (0)
 205
 206
 207 /*---------------------------------------------.
 208 | Debugging memory allocation (must be last).  |
 209 `---------------------------------------------*/
 210
 211 # if WITH_DMALLOC
 212 #  define DMALLOC_FUNC_CHECK
 213 #  include <dmalloc.h>
 214 # endif /* WITH_DMALLOC */
 215
 216 #endif  /* ! BISON_SYSTEM_H */