X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/a0f6b076110ea79f25e13701d7f0ee4b38630d4d..0049ec8628e5a320d055a0cea8676a58cec60986:/src/system.h?ds=inline diff --git a/src/system.h b/src/system.h index d878feb2..985bbbee 100644 --- a/src/system.h +++ b/src/system.h @@ -1,5 +1,7 @@ -/* system-dependent definitions for Bison. - Copyright (C) 2000 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 @@ -13,109 +15,206 @@ 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 - -#ifdef MSDOS -# include <io.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 -#ifdef _MSC_VER -# include <stdlib.h> -# include <process.h> -# define getpid _getpid -#endif +#include <limits.h> +#include <stddef.h> +#include <stdlib.h> +#include <string.h> -#if defined(HAVE_STDLIB_H) || defined(MSDOS) -# include <stdlib.h> +#if HAVE_SYS_TYPES_H +# include <sys/types.h> #endif -#if defined(HAVE_UNISTD_H) -# include <unistd.h> -#endif +#include <unistd.h> +#include <inttypes.h> -#if (defined(VMS) || defined(MSDOS)) && !defined(HAVE_STRING_H) -# define HAVE_STRING_H 1 +#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 <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 */ -# ifndef bcopy -# define bcopy(src, dst, num) memcpy((dst), (src), (num)) -# endif -#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 +/*---------. +| Gnulib. | +`---------*/ -#include <errno.h> -#ifndef errno -extern int errno; -#endif +#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 __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> +#include <locale.h> + +#include <gettext.h> +#define _(Msgid) gettext (Msgid) +#define N_(Msgid) (Msgid) + + +/*-----------. +| Booleans. | +`-----------*/ + +#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_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 HAVE_SETLOCALE -# define setlocale(Category, Locale) + +#ifndef TAB_EXT +# define TAB_EXT ".tab" #endif -#ifdef ENABLE_NLS -# include <libintl.h> -# define _(Text) gettext (Text) -#else -# undef bindtextdomain -# define bindtextdomain(Domain, Directory) -# undef textdomain -# define textdomain(Domain) -# define _(Text) Text +#ifndef DEFAULT_TMPDIR +# define DEFAULT_TMPDIR "/tmp" #endif -#define N_(Text) Text -/*-------------------------------. -| Fix broken compilation flags. | -`-------------------------------*/ -#ifndef LOCALEDIR -# define LOCALEDIR "/usr/local/share/locale" -#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 */ +#endif /* ! BISON_SYSTEM_H */