X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/896fe5c10a4b4b434afb37b9de106b23d42a09f4..e141f4d4bb6584bfbf13003047a2e48e9a6eab6a:/src/system.h
diff --git a/src/system.h b/src/system.h
index dfa287bb..c5a685bc 100644
--- a/src/system.h
+++ b/src/system.h
@@ -1,10 +1,11 @@
-/* system-dependent definitions for Bison.
- Copyright (C) 2000 Free Software Foundation, Inc.
+/* System-dependent definitions for Bison.
- This program is free software; you can redistribute it and/or modify
+ Copyright (C) 2000-2007, 2009-2010 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 2, or (at your option)
- any later version.
+ 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
@@ -12,155 +13,135 @@
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, write to the Free Software Foundation,
- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ along with this program. If not, see . */
#ifndef BISON_SYSTEM_H
#define BISON_SYSTEM_H
-#ifdef HAVE_CONFIG_H
-# include
+/* flex 2.5.31 gratutiously defines macros like INT8_MIN. But this
+ runs afoul of pre-C99 compilers that have or
+ , which are included below if available. It also runs
+ afoul of pre-C99 compilers that define these macros in . */
+#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
-
-#include
-
-#ifdef MSDOS
-# include
-#endif
+#include
+#include
+#include
+#include
-#ifdef _MSC_VER
-# include
-# include
-# define getpid _getpid
+#if HAVE_SYS_TYPES_H
+# include
#endif
-#if HAVE_STDLIB_H
-# include
-#endif
+#include
+#include
-#if HAVE_UNISTD_H
-# include
+#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 defined(STDC_HEADERS) || defined(HAVE_STRING_H)
-# include
-/* An ANSI string.h and pre-ANSI memory.h might conflict. */
-# if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
-# include
-# endif /* not STDC_HEADERS and HAVE_MEMORY_H */
-# ifndef bcopy
-# define bcopy(src, dst, num) memcpy((dst), (src), (num))
-# endif
-#else /* not STDC_HEADERS and not HAVE_STRING_H */
-# include
-/* 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
-#endif
+/*---------.
+| Gnulib. |
+`---------*/
-#include
-#ifndef errno
-extern int errno;
-#endif
+#include
+#include
+#include
-#if PROTOTYPES
-# define PARAMS(p) p
-#else
-# define PARAMS(p) ()
-#endif
/*-----------------.
| 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 __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
-
-/*------.
-| NLS. |
-`------*/
-
-#ifdef HAVE_LOCALE_H
-# include
-#endif
-#ifndef HAVE_SETLOCALE
-# define setlocale(Category, Locale)
+#ifndef ATTRIBUTE_NORETURN
+# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
#endif
-#ifdef ENABLE_NLS
-# include
-# define _(Text) gettext (Text)
-#else
-# undef bindtextdomain
-# define bindtextdomain(Domain, Directory)
-# undef textdomain
-# define textdomain(Domain)
-# define _(Text) Text
+#ifndef ATTRIBUTE_UNUSED
+# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
#endif
-#define N_(Text) Text
+#define FUNCTION_PRINT() fprintf (stderr, "%s: ", __func__)
-/*-------------------------------.
-| Fix broken compilation flags. |
-`-------------------------------*/
+/*------.
+| NLS. |
+`------*/
-#ifndef LOCALEDIR
-# define LOCALEDIR "/usr/local/share/locale"
-#endif
+#include
-#endif /* BISON_SYSTEM_H */
+#include
+#define _(Msgid) gettext (Msgid)
+#define N_(Msgid) (Msgid)
-/*---------------------------------.
-| Machine-dependencies for Bison. |
-`---------------------------------*/
+/*-----------.
+| Booleans. |
+`-----------*/
+
+#include
-#ifdef eta10
-# define MAXSHORT 2147483647
-# define MINSHORT -2147483648
-#else
-# define MAXSHORT 32767
-# define MINSHORT -32768
-#endif
-#if defined (MSDOS) && !defined (__GO32__)
-# define BITS_PER_WORD 16
-# define MAXTABLE 16383
-#else
-# define BITS_PER_WORD 32
-# define MAXTABLE 32767
-#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)
+/*-------------.
+| Assertions. |
+`-------------*/
+/* In the past, Bison defined aver to simply invoke abort in the case of
+ a failed assertion. The rationale was that 's assertions
+ were too heavyweight and could be disabled too easily. See
+ discussions at
+
+ .
-/*-----------.
-| Booleans. |
-`-----------*/
+ However, normal assert output can be helpful during development and
+ in bug reports from users. Moreover, it's not clear now that
+ '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
+ .
-#ifndef TRUE
-# define TRUE (1)
-# define FALSE (0)
-#endif
-typedef int bool;
+ For now, we use assert but we call it aver throughout Bison in case
+ we later wish to try another scheme.
+*/
+#include
+#define aver assert
/*-----------.
@@ -169,10 +150,10 @@ typedef int bool;
#define obstack_chunk_alloc xmalloc
#define obstack_chunk_free free
-#include "obstack.h"
+#include
-#define obstack_grow_literal_string(Obs, Str) \
- obstack_grow (Obs, Str, sizeof (Str) - 1)
+#define obstack_sgrow(Obs, Str) \
+ obstack_grow (Obs, Str, strlen (Str))
#define obstack_fgrow1(Obs, Format, Arg1) \
do { \
@@ -194,3 +175,56 @@ do { \
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
+# endif /* WITH_DMALLOC */
+
+#endif /* ! BISON_SYSTEM_H */