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 <verify.h>
  56 #include <xalloc.h>
  57
  58
  59 /*---------------------.
  60 | Missing prototypes.  |
  61 `---------------------*/
  62
  63 #include <stpcpy.h>
  64
  65 /* From lib/basename.c. */
  66 char *base_name (char const *name);
  67
  68
  69 /*-----------------.
  70 | GCC extensions.  |
  71 `-----------------*/
  72
  73 /* Use this to suppress gcc's `...may be used before initialized'
  74    warnings.  */
  75 #ifdef lint
  76 # define IF_LINT(Code) Code
  77 #else
  78 # define IF_LINT(Code) /* empty */
  79 #endif
  80
  81 #ifndef __attribute__
  82 /* This feature is available in gcc versions 2.5 and later.  */
  83 # if !defined (__GNUC__) || __GNUC__ < 2 || \
  84 (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
  85 #  define __attribute__(Spec) /* empty */
  86 # endif
  87 #endif
  88
  89 /* The __-protected variants of `format' and `printf' attributes
  90    are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
  91 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
  92 # define __format__ format
  93 # define __printf__ printf
  94 #endif
  95
  96 #ifndef ATTRIBUTE_NORETURN
  97 # define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
  98 #endif
  99
 100 #ifndef ATTRIBUTE_UNUSED
 101 # define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
 102 #endif
 103
 104 /*------.
 105 | NLS.  |
 106 `------*/
 107
 108 #include <locale.h>
 109
 110 #include <gettext.h>
 111 #define _(Msgid)  gettext (Msgid)
 112 #define N_(Msgid) (Msgid)
 113
 114
 115 /*-------------------------------.
 116 | Fix broken compilation flags.  |
 117 `-------------------------------*/
 118
 119 #ifndef LOCALEDIR
 120 # define LOCALEDIR "/usr/local/share/locale"
 121 #endif
 122
 123
 124 /*-----------.
 125 | Booleans.  |
 126 `-----------*/
 127
 128 #include <stdbool.h>
 129
 130
 131 /*-----------.
 132 | Obstacks.  |
 133 `-----------*/
 134
 135 #define obstack_chunk_alloc xmalloc
 136 #define obstack_chunk_free  free
 137 #include <obstack.h>
 138
 139 #define obstack_sgrow(Obs, Str) \
 140   obstack_grow (Obs, Str, strlen (Str))
 141
 142 #define obstack_fgrow1(Obs, Format, Arg1)       \
 143 do {                                            \
 144   char buf[4096];                               \
 145   sprintf (buf, Format, Arg1);                  \
 146   obstack_grow (Obs, buf, strlen (buf));        \
 147 } while (0)
 148
 149 #define obstack_fgrow2(Obs, Format, Arg1, Arg2) \
 150 do {                                            \
 151   char buf[4096];                               \
 152   sprintf (buf, Format, Arg1, Arg2);            \
 153   obstack_grow (Obs, buf, strlen (buf));        \
 154 } while (0)
 155
 156 #define obstack_fgrow3(Obs, Format, Arg1, Arg2, Arg3)   \
 157 do {                                                    \
 158   char buf[4096];                                       \
 159   sprintf (buf, Format, Arg1, Arg2, Arg3);              \
 160   obstack_grow (Obs, buf, strlen (buf));                \
 161 } while (0)
 162
 163 #define obstack_fgrow4(Obs, Format, Arg1, Arg2, Arg3, Arg4)     \
 164 do {                                                            \
 165   char buf[4096];                                               \
 166   sprintf (buf, Format, Arg1, Arg2, Arg3, Arg4);                \
 167   obstack_grow (Obs, buf, strlen (buf));                        \
 168 } while (0)
 169
 170
 171
 172 /*-----------------------------------------.
 173 | Extensions to use for the output files.  |
 174 `-----------------------------------------*/
 175
 176 #ifndef OUTPUT_EXT
 177 # define OUTPUT_EXT ".output"
 178 #endif
 179
 180 #ifndef TAB_EXT
 181 # define TAB_EXT ".tab"
 182 #endif
 183
 184 #ifndef DEFAULT_TMPDIR
 185 # define DEFAULT_TMPDIR "/tmp"
 186 #endif
 187
 188
 189
 190 /*---------------------.
 191 | Free a linked list.  |
 192 `---------------------*/
 193
 194 #define LIST_FREE(Type, List)                   \
 195 do {                                            \
 196   Type *_node, *_next;                          \
 197   for (_node = List; _node; _node = _next)      \
 198     {                                           \
 199       _next = _node->next;                      \
 200       free (_node);                             \
 201     }                                           \
 202 } while (0)
 203
 204
 205 /*---------------------------------------------.
 206 | Debugging memory allocation (must be last).  |
 207 `---------------------------------------------*/
 208
 209 # if WITH_DMALLOC
 210 #  define DMALLOC_FUNC_CHECK
 211 #  include <dmalloc.h>
 212 # endif /* WITH_DMALLOC */
 213
 214 #endif  /* ! BISON_SYSTEM_H */