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/* System-dependent definitions for Bison.
Copyright (C) 2000-2007, 2009-2011 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef BISON_SYSTEM_H
#define BISON_SYSTEM_H
/* flex 2.5.31 gratutiously defines macros like INT8_MIN. But this
runs afoul of pre-C99 compilers that have <inttypes.h> or
<stdint.h>, which are included below if available. It also runs
afoul of pre-C99 compilers that define these macros in <limits.h>. */
#if ! defined __STDC_VERSION__ || __STDC_VERSION__ < 199901
# undef INT8_MIN
# undef INT16_MIN
# undef INT32_MIN
# undef INT8_MAX
# undef INT16_MAX
# undef UINT8_MAX
# undef INT32_MAX
# undef UINT16_MAX
# undef UINT32_MAX
#endif
#include <limits.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#include <unistd.h>
#include <inttypes.h>
#ifndef UINTPTR_MAX
/* This isn't perfect, but it's good enough for Bison, which needs
only to hash pointers. */
typedef size_t uintptr_t;
#endif
/*---------.
| Gnulib. |
`---------*/
#include <unlocked-io.h>
#include <verify.h>
#include <xalloc.h>
/*-----------------.
| GCC extensions. |
`-----------------*/
/* Use this to suppress gcc's `...may be used before initialized'
warnings. */
#ifdef lint
# define IF_LINT(Code) Code
#else
# define IF_LINT(Code) /* empty */
#endif
#ifndef __attribute__
/* This feature is available in gcc versions 2.5 and later. */
# if (! defined __GNUC__ || __GNUC__ < 2 \
|| (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__)
# define __attribute__(Spec) /* empty */
# endif
#endif
/* The __-protected variants of `format' and `printf' attributes
are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */
#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
# define __format__ format
# define __printf__ printf
#endif
#ifndef ATTRIBUTE_NORETURN
# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
#endif
#ifndef ATTRIBUTE_UNUSED
# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
#endif
#define FUNCTION_PRINT() fprintf (stderr, "%s: ", __func__)
/*------.
| NLS. |
`------*/
#include <locale.h>
#include <gettext.h>
#define _(Msgid) gettext (Msgid)
#define N_(Msgid) (Msgid)
/*-----------.
| Booleans. |
`-----------*/
#include <stdbool.h>
/*-------------.
| Assertions. |
`-------------*/
/* In the past, Bison defined aver to simply invoke abort in the case of
a failed assertion. The rationale was that <assert.h>'s assertions
were too heavyweight and could be disabled too easily. See
discussions at
<http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00080.html>
<http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00111.html>.
However, normal assert output can be helpful during development and
in bug reports from users. Moreover, it's not clear now that
<assert.h>'s assertions are significantly heavyweight. Finally, if
users want to experiment with disabling assertions, it's debatable
whether it's our responsibility to stop them. See discussion
starting at
<http://lists.gnu.org/archive/html/bison-patches/2009-09/msg00013.html>.
For now, we use assert but we call it aver throughout Bison in case
we later wish to try another scheme.
*/
#include <assert.h>
#define aver assert
/*-----------.
| Obstacks. |
`-----------*/
#define obstack_chunk_alloc xmalloc
#define obstack_chunk_free free
#include <obstack.h>
#define obstack_sgrow(Obs, Str) \
obstack_grow (Obs, Str, strlen (Str))
#define obstack_fgrow1(Obs, Format, Arg1) \
do { \
char buf[4096]; \
sprintf (buf, Format, Arg1); \
obstack_grow (Obs, buf, strlen (buf)); \
} while (0)
#define obstack_fgrow2(Obs, Format, Arg1, Arg2) \
do { \
char buf[4096]; \
sprintf (buf, Format, Arg1, Arg2); \
obstack_grow (Obs, buf, strlen (buf)); \
} while (0)
#define obstack_fgrow3(Obs, Format, Arg1, Arg2, Arg3) \
do { \
char buf[4096]; \
sprintf (buf, Format, Arg1, Arg2, Arg3); \
obstack_grow (Obs, buf, strlen (buf)); \
} while (0)
#define obstack_fgrow4(Obs, Format, Arg1, Arg2, Arg3, Arg4) \
do { \
char buf[4096]; \
sprintf (buf, Format, Arg1, Arg2, Arg3, Arg4); \
obstack_grow (Obs, buf, strlen (buf)); \
} while (0)
/*-----------------------------------------.
| Extensions to use for the output files. |
`-----------------------------------------*/
#ifndef OUTPUT_EXT
# define OUTPUT_EXT ".output"
#endif
#ifndef TAB_EXT
# define TAB_EXT ".tab"
#endif
#ifndef DEFAULT_TMPDIR
# define DEFAULT_TMPDIR "/tmp"
#endif
/*---------------------.
| Free a linked list. |
`---------------------*/
#define LIST_FREE(Type, List) \
do { \
Type *_node, *_next; \
for (_node = List; _node; _node = _next) \
{ \
_next = _node->next; \
free (_node); \
} \
} while (0)
/*---------------------------------------------.
| Debugging memory allocation (must be last). |
`---------------------------------------------*/
# if WITH_DMALLOC
# define DMALLOC_FUNC_CHECK
# include <dmalloc.h>
# endif /* WITH_DMALLOC */
#endif /* ! BISON_SYSTEM_H */
|
