-/* system-dependent definitions for Bison.
- Copyright 2000, 2001 Free Software Foundation, Inc.
+/* System-dependent definitions for Bison.
+
+ Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 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
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
#ifndef BISON_SYSTEM_H
#define BISON_SYSTEM_H
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <stdio.h>
-
-#include <assert.h>
-
-#if HAVE_STDLIB_H
-# include <stdlib.h>
-#endif
-
-/* The following test is to work around the gross typo in
- systems like Sony NEWS-OS Release 4.0C, whereby EXIT_FAILURE
- is defined to 0, not 1. */
-#if !EXIT_FAILURE
-# undef EXIT_FAILURE
-# define EXIT_FAILURE 1
-#endif
-
-#ifndef EXIT_SUCCESS
-# define EXIT_SUCCESS 0
-#endif
-
-#if HAVE_UNISTD_H
-# include <unistd.h>
-#endif
-
-#if defined(STDC_HEADERS) || defined(HAVE_STRING_H)
-# include <string.h>
-/* An ANSI string.h and pre-ANSI memory.h might conflict. */
-# if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
-# include <memory.h>
-# endif /* not STDC_HEADERS and HAVE_MEMORY_H */
-#else /* not STDC_HEADERS and not HAVE_STRING_H */
-# include <strings.h>
-/* memory.h and strings.h conflict on some systems. */
-#endif /* not STDC_HEADERS and not HAVE_STRING_H */
-
-#if defined(STDC_HEADERS) || defined(HAVE_CTYPE_H)
-# include <ctype.h>
-#endif
-
-#include <errno.h>
-#ifndef errno
-extern int errno;
-#endif
-
-/* AIX requires this to be the first thing in the file. */
-#ifndef __GNUC__
-# if HAVE_ALLOCA_H
-# include <alloca.h>
-# else
-# ifdef _AIX
- #pragma alloca
-# else
-# ifndef alloca /* predefined by HP cc +Olibcalls */
-char *alloca ();
-# endif
-# endif
-# endif
-#endif
-
-#ifndef PARAMS
-# if defined PROTOTYPES || defined __STDC__
-# define PARAMS(Args) Args
-# else
-# define PARAMS(Args) ()
-# endif
-#endif
-
-# include "xalloc.h"
-
-/* From xstrndup.c. */
-char *xstrndup PARAMS ((const char *s, size_t n));
-
-/*---------------------.
-| Missing prototypes. |
-`---------------------*/
-
-#if !HAVE_DECL_STPCPY
-char *stpcpy PARAMS ((char *dest, const char *src));
+/* 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
-#if !HAVE_DECL_STRCHR
-char *strchr(const char *s, int c);
-#endif
+#include <limits.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
-#if !HAVE_DECL_STRNDUP
-char *strndup PARAMS ((const char *s, size_t size));
+#if HAVE_SYS_TYPES_H
+# include <sys/types.h>
#endif
-#if !HAVE_DECL_STRSPN
-size_t strspn(const char *s, const char *accept);
-#endif
+#include <unistd.h>
+#include <inttypes.h>
-#if !HAVE_DECL_STRNLEN
-size_t strnlen PARAMS ((const char *s, size_t maxlen));
+#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
-#if !HAVE_DECL_MEMCHR
-void *memchr PARAMS ((const void *s, int c, size_t n));
-#endif
-#if !HAVE_DECL_MEMRCHR
-void *memrchr PARAMS ((const void *s, int c, size_t n));
-#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__
+# 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
+#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. |
`------*/
-#ifdef HAVE_LOCALE_H
-# include <locale.h>
-#endif
-#ifndef HAVE_SETLOCALE
-# define setlocale(Category, Locale)
-#endif
+#include <locale.h>
-#include "libgettext.h"
+#include <gettext.h>
#define _(Msgid) gettext (Msgid)
#define N_(Msgid) (Msgid)
-/*-------------------------------.
-| Fix broken compilation flags. |
-`-------------------------------*/
-
-#ifndef LOCALEDIR
-# define LOCALEDIR "/usr/local/share/locale"
-#endif
-
-
/*-----------.
| Booleans. |
`-----------*/
-#ifndef TRUE
-# define TRUE (1)
-# define FALSE (0)
-#endif
-typedef int bool;
+#include <stdbool.h>
+
+
+
+/*-------------.
+| Assertions. |
+`-------------*/
+
+/* <assert.h>'s assertions are too heavyweight, and can be disabled
+ too easily, so use aver rather than assert. */
+static inline void
+aver (bool assertion)
+{
+ if (! assertion)
+ abort ();
+}
/*-----------.
| Obstacks. |
`-----------*/
-# define obstack_chunk_alloc xmalloc
-# define obstack_chunk_free free
-# include "obstack.h"
+#define obstack_chunk_alloc xmalloc
+#define obstack_chunk_free free
+#include <obstack.h>
#define obstack_sgrow(Obs, Str) \
obstack_grow (Obs, Str, strlen (Str))
} while (0)
-/*---------------------------------.
-| Machine-dependencies for Bison. |
-`---------------------------------*/
-#ifdef eta10
-# define MAXSHORT 2147483647
-# define MINSHORT -2147483648
-#else
-# define MAXSHORT 32767
-# define MINSHORT -32768
+/*-----------------------------------------.
+| Extensions to use for the output files. |
+`-----------------------------------------*/
+
+#ifndef OUTPUT_EXT
+# define OUTPUT_EXT ".output"
#endif
-#if defined (MSDOS) && !defined (__GO32__)
-# define BITS_PER_WORD 16
-# define MAXTABLE 16383
-#else
-# define BITS_PER_WORD 32
-# define MAXTABLE 32767
+#ifndef TAB_EXT
+# define TAB_EXT ".tab"
#endif
-#define WORDSIZE(n) (((n) + BITS_PER_WORD - 1) / BITS_PER_WORD)
-#define SETBIT(x, i) ((x)[(i)/BITS_PER_WORD] |= (1<<((i) % BITS_PER_WORD)))
-#define RESETBIT(x, i) ((x)[(i)/BITS_PER_WORD] &= ~(1<<((i) % BITS_PER_WORD)))
-#define BITISSET(x, i) (((x)[(i)/BITS_PER_WORD] & (1<<((i) % BITS_PER_WORD))) != 0)
-
-
-/* Extensions to use for the output files. */
-
-#ifdef VMS
- /* VMS. */
-# define EXT_TAB "_tab"
-# define EXT_OUTPUT ".output"
-# define EXT_STYPE_H "_stype"
-# define EXT_GUARD_C "_guard"
-#else /* ! VMS */
-# ifdef MSDOS
- /* MS DOS. */
-# define EXT_TAB "_tab"
-# define EXT_OUTPUT ".out"
-# define EXT_STYPE_H ".sth"
-# define EXT_GUARD_C ".guc"
-# else /* ! MSDOS */
- /* Standard. */
-# define EXT_TAB ".tab"
-# define EXT_OUTPUT ".output"
-# define EXT_STYPE_H ".stype"
-# define EXT_GUARD_C ".guard"
-# endif /* ! MSDOS */
-#endif /* ! VMS */
-
-/* As memcpy, but for shorts. */
-#define shortcpy(Dest, Src, Num) \
- memcpy (Dest, Src, Num * sizeof (short))
-
-/* Free a linked list. */
+#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; \
- XFREE (_node); \
+ free (_node); \
} \
} while (0)
-/*---------------------------------.
-| Debugging the memory allocator. |
-`---------------------------------*/
+
+/*---------------------------------------------.
+| Debugging memory allocation (must be last). |
+`---------------------------------------------*/
# if WITH_DMALLOC
# define DMALLOC_FUNC_CHECK
projects / bison.git / blobdiff