-/* system-dependent definitions for Bison.
- Copyright 2000, 2001, 2002 Free Software Foundation, Inc.
+/* System-dependent definitions for Bison.
+
+ Copyright (C) 2000, 2001, 2002, 2003 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
#ifndef BISON_SYSTEM_H
#define BISON_SYSTEM_H
-#ifdef HAVE_CONFIG_H
+#if HAVE_CONFIG_H
# include <config.h>
#endif
+#include <stddef.h>
#include <stdio.h>
-#include <assert.h>
+/* Verify a requirement at compile-time (unlike assert, which is runtime). */
+#define verify(name, assertion) struct name {char name[(assertion) ? 1 : -1];}
+
+#if HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
#if HAVE_STDLIB_H
# include <stdlib.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
+#include <limits.h>
-/* AIX requires this to be the first thing in the file. */
-#ifndef __GNUC__
-# if HAVE_ALLOCA_H
-# include <alloca.h>
+#if HAVE_UINTPTR_T
+# if HAVE_INTTYPES_H
+# include <inttypes.h>
# else
-# ifdef _AIX
- #pragma alloca
-# else
-# ifndef alloca /* predefined by HP cc +Olibcalls */
-char *alloca ();
-# endif
+# if HAVE_STDINT_H
+# include <stdint.h>
# endif
# endif
+#else
+/* This isn't perfect, but it's good enough for Bison, which needs
+ only to hash pointers. */
+typedef size_t uintptr_t;
#endif
-#ifndef PARAMS
-# if defined PROTOTYPES || defined __STDC__
-# define PARAMS(Args) Args
-# else
-# define PARAMS(Args) ()
-# endif
-#endif
-
-# include "xalloc.h"
+#include <xalloc.h>
+#define CALLOC(P, N) ((P) = xcalloc (N, sizeof *(P)))
+#define MALLOC(P, N) ((P) = xmalloc ((N) * sizeof *(P)))
+#define REALLOC(P, N) ((P) = xrealloc (P, (N) * sizeof *(P)))
/* From xstrndup.c. */
-char *xstrndup PARAMS ((const char *s, size_t n));
+char *xstrndup (const char *s, size_t n);
+
/*---------------------.
| Missing prototypes. |
`---------------------*/
-#if !HAVE_DECL_STPCPY
-char *stpcpy PARAMS ((char *dest, const char *src));
-#endif
-
-#if !HAVE_DECL_STRCHR
-char *strchr(const char *s, int c);
+#if defined HAVE_DECL_STPCPY && !HAVE_DECL_STPCPY
+char *stpcpy (char *dest, const char *src);
#endif
-#if !HAVE_DECL_STRNDUP
-char *strndup PARAMS ((const char *s, size_t size));
+#if defined HAVE_DECL_STRCHR && !HAVE_DECL_STRCHR
+char *strchr (const char *s, int c);
#endif
-#if !HAVE_DECL_STRSPN
-size_t strspn(const char *s, const char *accept);
+#if defined HAVE_DECL_STRSPN && !HAVE_DECL_STRSPN
+size_t strspn (const char *s, const char *accept);
#endif
-#if !HAVE_DECL_STRNLEN
-size_t strnlen PARAMS ((const char *s, size_t maxlen));
+#if defined HAVE_DECL_STRNLEN && !HAVE_DECL_STRNLEN
+size_t strnlen (const char *s, size_t maxlen);
#endif
-#if !HAVE_DECL_MEMCHR
-void *memchr PARAMS ((const void *s, int c, size_t n));
+#if defined HAVE_DECL_MEMCHR && !HAVE_DECL_MEMCHR
+void *memchr (const void *s, int c, size_t n);
#endif
-#if !HAVE_DECL_MEMRCHR
-void *memrchr PARAMS ((const void *s, int c, size_t n));
+#if defined HAVE_DECL_MEMRCHR && !HAVE_DECL_MEMRCHR
+void *memrchr (const void *s, int c, size_t n);
#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 !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
/*------.
| NLS. |
`------*/
-#ifdef HAVE_LOCALE_H
+#if HAVE_LOCALE_H
# include <locale.h>
#endif
-#ifndef HAVE_SETLOCALE
+#if !HAVE_SETLOCALE
# define setlocale(Category, Locale)
#endif
-#include "libgettext.h"
+#include <gettext.h>
#define _(Msgid) gettext (Msgid)
#define N_(Msgid) (Msgid)
| Booleans. |
`-----------*/
-#ifndef TRUE
-# define TRUE (1)
-# define FALSE (0)
+#if HAVE_STDBOOL_H
+# include <stdbool.h>
+#else
+# ifndef __bool_true_false_are_defined
+# if ! HAVE__BOOL
+# ifdef __cplusplus
+typedef bool _Bool;
+# else
+typedef unsigned char _Bool;
+# endif
+# endif
+# define bool _Bool
+# define false 0
+# define true 1
+# define __bool_true_false_are_defined 1
+# endif
#endif
-typedef int bool;
/*-----------.
# define obstack_chunk_alloc xmalloc
# define obstack_chunk_free free
-# include "obstack.h"
+# 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
-#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)
-
/*-----------------------------------------.
| 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"
+# define TAB_EXT "_tab"
+# define OUTPUT_EXT ".output"
#else /* ! VMS */
# ifdef MSDOS
/* MS DOS. */
-# define EXT_TAB "_tab"
-# define EXT_OUTPUT ".out"
-# define EXT_STYPE_H ".sth"
-# define EXT_GUARD_C ".guc"
+# define TAB_EXT "_tab"
+# define OUTPUT_EXT ".out"
# else /* ! MSDOS */
/* Standard. */
-# define EXT_TAB ".tab"
-# define EXT_OUTPUT ".output"
-# define EXT_STYPE_H ".stype"
-# define EXT_GUARD_C ".guard"
+# define TAB_EXT ".tab"
+# define OUTPUT_EXT ".output"
# endif /* ! MSDOS */
#endif /* ! VMS */
-/*----------------------------.
-| As memcpy, but for shorts. |
-`----------------------------*/
-
-#define shortcpy(Dest, Src, Num) \
- memcpy (Dest, Src, Num * sizeof (short))
-
/*---------------------.
| Free a linked list. |
`---------------------*/
projects / bison.git / blobdiff