1/* System-dependent definitions for Bison.
2
3   Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free
4   Software 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/* flex 2.5.31 gratutiously defines macros like INT8_MIN.  But this
24   runs afoul of pre-C99 compilers that have <inttypes.h> or
25   <stdint.h>, which are included below if available.  It also runs
26   afoul of pre-C99 compilers that define these macros in <limits.h>.  */
27#if ! defined __STDC_VERSION__ || __STDC_VERSION__ < 199901
28# undef INT8_MIN
29# undef INT16_MIN
30# undef INT32_MIN
31# undef INT8_MAX
32# undef INT16_MAX
33# undef UINT8_MAX
34# undef INT32_MAX
35# undef UINT16_MAX
36# undef UINT32_MAX
37#endif
38
39#include <limits.h>
40#include <stddef.h>
41#include <stdlib.h>
42#include <string.h>
43
44#include "unlocked-io.h"
45
46#if HAVE_SYS_TYPES_H
47# include <sys/types.h>
48#endif
49
50#if HAVE_UNISTD_H
51# include <unistd.h>
52#endif
53
54#if HAVE_INTTYPES_H
55# include <inttypes.h>
56#endif
57#if HAVE_STDINT_H
58# include <stdint.h>
59#endif
60
61#if ! HAVE_UINTPTR_T
62/* This isn't perfect, but it's good enough for Bison, which needs
63   only to hash pointers.  */
64typedef size_t uintptr_t;
65#endif
66
67#include <verify.h>
68#include <xalloc.h>
69
70
71/*---------------------.
72| Missing prototypes.  |
73`---------------------*/
74
75#include <stpcpy.h>
76
77/* From lib/basename.c. */
78char *base_name (char const *name);
79
80
81/*-----------------.
82| GCC extensions.  |
83`-----------------*/
84
85/* Use this to suppress gcc's `...may be used before initialized'
86   warnings.  */
87#ifdef lint
88# define IF_LINT(Code) Code
89#else
90# define IF_LINT(Code) /* empty */
91#endif
92
93#ifndef __attribute__
94/* This feature is available in gcc versions 2.5 and later.  */
95# if (! defined __GNUC__ || __GNUC__ < 2 \
96      || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__)
97#  define __attribute__(Spec) /* empty */
98# endif
99#endif
100
101/* The __-protected variants of `format' and `printf' attributes
102   are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
103#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
104# define __format__ format
105# define __printf__ printf
106#endif
107
108#ifndef ATTRIBUTE_NORETURN
109# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
110#endif
111
112#ifndef ATTRIBUTE_UNUSED
113# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
114#endif
115
116/*------.
117| NLS.  |
118`------*/
119
120#include <locale.h>
121
122#include <gettext.h>
123#define _(Msgid)  gettext (Msgid)
124#define N_(Msgid) (Msgid)
125
126
127/*-------------------------------.
128| Fix broken compilation flags.  |
129`-------------------------------*/
130
131#ifndef LOCALEDIR
132# define LOCALEDIR "/usr/local/share/locale"
133#endif
134
135
136/*-----------.
137| Booleans.  |
138`-----------*/
139
140#include <stdbool.h>
141
142
143/*-----------.
144| Obstacks.  |
145`-----------*/
146
147#define obstack_chunk_alloc xmalloc
148#define obstack_chunk_free  free
149#include <obstack.h>
150
151#define obstack_sgrow(Obs, Str) \
152  obstack_grow (Obs, Str, strlen (Str))
153
154#define obstack_fgrow1(Obs, Format, Arg1)	\
155do {						\
156  char buf[4096];				\
157  sprintf (buf, Format, Arg1);			\
158  obstack_grow (Obs, buf, strlen (buf));	\
159} while (0)
160
161#define obstack_fgrow2(Obs, Format, Arg1, Arg2)	\
162do {						\
163  char buf[4096];				\
164  sprintf (buf, Format, Arg1, Arg2);		\
165  obstack_grow (Obs, buf, strlen (buf));	\
166} while (0)
167
168#define obstack_fgrow3(Obs, Format, Arg1, Arg2, Arg3)	\
169do {							\
170  char buf[4096];					\
171  sprintf (buf, Format, Arg1, Arg2, Arg3);		\
172  obstack_grow (Obs, buf, strlen (buf));		\
173} while (0)
174
175#define obstack_fgrow4(Obs, Format, Arg1, Arg2, Arg3, Arg4)	\
176do {								\
177  char buf[4096];						\
178  sprintf (buf, Format, Arg1, Arg2, Arg3, Arg4);		\
179  obstack_grow (Obs, buf, strlen (buf));			\
180} while (0)
181
182
183
184/*-----------------------------------------.
185| Extensions to use for the output files.  |
186`-----------------------------------------*/
187
188#ifndef OUTPUT_EXT
189# define OUTPUT_EXT ".output"
190#endif
191
192#ifndef TAB_EXT
193# define TAB_EXT ".tab"
194#endif
195
196#ifndef DEFAULT_TMPDIR
197# define DEFAULT_TMPDIR "/tmp"
198#endif
199
200
201
202/*---------------------.
203| Free a linked list.  |
204`---------------------*/
205
206#define LIST_FREE(Type, List)			\
207do {						\
208  Type *_node, *_next;				\
209  for (_node = List; _node; _node = _next)	\
210    {						\
211      _next = _node->next;			\
212      free (_node);				\
213    }						\
214} while (0)
215
216
217/* Assertions.  <assert.h>'s assertions are too heavyweight, and can
218   be disabled too easily, so implement it separately here.  */
219#define assert(x) ((void) ((x) || (abort (), 0)))
220
221
222/*---------------------------------------------.
223| Debugging memory allocation (must be last).  |
224`---------------------------------------------*/
225
226# if WITH_DMALLOC
227#  define DMALLOC_FUNC_CHECK
228#  include <dmalloc.h>
229# endif /* WITH_DMALLOC */
230
231#endif  /* ! BISON_SYSTEM_H */
232