X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/7de3329eea354cc392692ccc47bdddfc2bf82f2d..0f664b89d4aa86146015acd87a770db878d7e5d4:/src/system.h?ds=inline diff --git a/src/system.h b/src/system.h index 437c1f15..57a432d0 100644 --- a/src/system.h +++ b/src/system.h @@ -1,10 +1,12 @@ -/* system-dependent definitions for Bison. - Copyright 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, 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 - 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 @@ -12,129 +14,123 @@ 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) /*-----------. | Booleans. | `-----------*/ -#ifndef TRUE -# define TRUE (1) -# define FALSE (0) -#endif -typedef int bool; +#include + + + +/*-------------. +| Assertions. | +`-------------*/ + +/* '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 (); +} /*-----------. @@ -143,10 +139,10 @@ 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 { \ @@ -169,53 +165,55 @@ do { \ 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) + -/*---------------------------------. -| 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 + +#ifndef DEFAULT_TMPDIR +# define DEFAULT_TMPDIR "/tmp" #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.h" -# define EXT_GUARD_C "_guard.c" -#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.h" -# define EXT_GUARD_C ".guard.c" -# endif /* ! MSDOS */ -#endif /* ! VMS */ + + +/*---------------------. +| 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 */