mirror of
https://git.savannah.gnu.org/git/bison.git
synced 2026-03-10 12:53:03 +00:00
281 lines
6.6 KiB
C
281 lines
6.6 KiB
C
/* System-dependent definitions for Bison.
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Copyright (C) 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#ifndef BISON_SYSTEM_H
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#define BISON_SYSTEM_H
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#if HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <stddef.h>
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#include <stdio.h>
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/* Verify a requirement at compile-time (unlike assert, which is runtime). */
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#define verify(name, assertion) struct name {char name[(assertion) ? 1 : -1];}
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#if HAVE_SYS_TYPES_H
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# include <sys/types.h>
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#endif
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#if HAVE_STDLIB_H
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# include <stdlib.h>
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#endif
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/* The following test is to work around the gross typo in
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systems like Sony NEWS-OS Release 4.0C, whereby EXIT_FAILURE
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is defined to 0, not 1. */
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#if !EXIT_FAILURE
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# undef EXIT_FAILURE
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# define EXIT_FAILURE 1
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#endif
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#ifndef EXIT_SUCCESS
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# define EXIT_SUCCESS 0
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#endif
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#if HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#if defined(STDC_HEADERS) || defined(HAVE_STRING_H)
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# include <string.h>
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/* An ANSI string.h and pre-ANSI memory.h might conflict. */
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# if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
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# include <memory.h>
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# endif /* not STDC_HEADERS and HAVE_MEMORY_H */
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#else /* not STDC_HEADERS and not HAVE_STRING_H */
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# include <strings.h>
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/* memory.h and strings.h conflict on some systems. */
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#endif /* not STDC_HEADERS and not HAVE_STRING_H */
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#include <limits.h>
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#if HAVE_UINTPTR_T
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# if HAVE_INTTYPES_H
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# include <inttypes.h>
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# else
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# if HAVE_STDINT_H
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# include <stdint.h>
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# endif
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# endif
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#else
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/* This isn't perfect, but it's good enough for Bison, which needs
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only to hash pointers. */
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typedef size_t uintptr_t;
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#endif
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#include <xalloc.h>
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#define CALLOC(P, N) ((P) = xcalloc (N, sizeof *(P)))
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#define MALLOC(P, N) ((P) = xmalloc ((N) * sizeof *(P)))
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#define REALLOC(P, N) ((P) = xrealloc (P, (N) * sizeof *(P)))
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/* From xstrndup.c. */
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char *xstrndup (const char *str, size_t size);
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/*---------------------.
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| Missing prototypes. |
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`---------------------*/
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#if defined HAVE_DECL_STPCPY && !HAVE_DECL_STPCPY
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char *stpcpy (char *dest, const char *src);
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#endif
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#if defined HAVE_DECL_STRCHR && !HAVE_DECL_STRCHR
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char *strchr (const char *str, int ch);
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#endif
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#if defined HAVE_DECL_STRSPN && !HAVE_DECL_STRSPN
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size_t strspn (const char *str, const char *accept);
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#endif
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#if defined HAVE_DECL_STRNLEN && !HAVE_DECL_STRNLEN
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size_t strnlen (const char *str, size_t maxlen);
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#endif
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#if defined HAVE_DECL_MEMCHR && !HAVE_DECL_MEMCHR
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void *memchr (const void *str, int ch, size_t size);
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#endif
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#if defined HAVE_DECL_MEMRCHR && !HAVE_DECL_MEMRCHR
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void *memrchr (const void *str, int ch, size_t size);
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#endif
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/*-----------------.
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| GCC extensions. |
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`-----------------*/
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/* Use this to suppress gcc's `...may be used before initialized'
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warnings. */
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#ifdef lint
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# define IF_LINT(Code) Code
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#else
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# define IF_LINT(Code) /* empty */
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#endif
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#ifndef __attribute__
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/* This feature is available in gcc versions 2.5 and later. */
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# if !defined (__GNUC__) || __GNUC__ < 2 || \
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(__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
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# define __attribute__(Spec) /* empty */
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# endif
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#endif
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/* The __-protected variants of `format' and `printf' attributes
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are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */
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#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
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# define __format__ format
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# define __printf__ printf
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#endif
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#ifndef ATTRIBUTE_NORETURN
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# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
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#endif
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#ifndef ATTRIBUTE_UNUSED
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# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
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#endif
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/*------.
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| NLS. |
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`------*/
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#if HAVE_LOCALE_H
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# include <locale.h>
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#endif
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#if !HAVE_SETLOCALE
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# define setlocale(Category, Locale)
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#endif
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#include <gettext.h>
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#define _(Msgid) gettext (Msgid)
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#define N_(Msgid) (Msgid)
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/*-------------------------------.
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| Fix broken compilation flags. |
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`-------------------------------*/
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#ifndef LOCALEDIR
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# define LOCALEDIR "/usr/local/share/locale"
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#endif
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/*-----------.
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| Booleans. |
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`-----------*/
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#include <stdbool.h>
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/*-----------.
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| Obstacks. |
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`-----------*/
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# define obstack_chunk_alloc xmalloc
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# define obstack_chunk_free free
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# include <obstack.h>
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#define obstack_sgrow(Obs, Str) \
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obstack_grow (Obs, Str, strlen (Str))
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#define obstack_fgrow1(Obs, Format, Arg1) \
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do { \
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char buf[4096]; \
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sprintf (buf, Format, Arg1); \
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obstack_grow (Obs, buf, strlen (buf)); \
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} while (0)
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#define obstack_fgrow2(Obs, Format, Arg1, Arg2) \
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do { \
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char buf[4096]; \
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sprintf (buf, Format, Arg1, Arg2); \
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obstack_grow (Obs, buf, strlen (buf)); \
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} while (0)
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#define obstack_fgrow3(Obs, Format, Arg1, Arg2, Arg3) \
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do { \
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char buf[4096]; \
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sprintf (buf, Format, Arg1, Arg2, Arg3); \
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obstack_grow (Obs, buf, strlen (buf)); \
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} while (0)
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#define obstack_fgrow4(Obs, Format, Arg1, Arg2, Arg3, Arg4) \
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do { \
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char buf[4096]; \
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sprintf (buf, Format, Arg1, Arg2, Arg3, Arg4); \
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obstack_grow (Obs, buf, strlen (buf)); \
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} while (0)
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/*-----------------------------------------.
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| Extensions to use for the output files. |
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`-----------------------------------------*/
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#ifdef VMS
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/* VMS. */
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# define TAB_EXT "_tab"
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# define OUTPUT_EXT ".output"
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#else /* ! VMS */
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# ifdef MSDOS
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/* MS DOS. */
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# define TAB_EXT "_tab"
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# define OUTPUT_EXT ".out"
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# else /* ! MSDOS */
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/* Standard. */
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# define TAB_EXT ".tab"
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# define OUTPUT_EXT ".output"
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# endif /* ! MSDOS */
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#endif /* ! VMS */
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#ifndef DEFAULT_TMPDIR
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# define DEFAULT_TMPDIR "/tmp"
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#endif
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/*---------------------.
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| Free a linked list. |
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`---------------------*/
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#define LIST_FREE(Type, List) \
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do { \
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Type *_node, *_next; \
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for (_node = List; _node; _node = _next) \
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{ \
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_next = _node->next; \
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XFREE (_node); \
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} \
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} while (0)
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/*---------------------------------------------.
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| Debugging memory allocation (must be last). |
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`---------------------------------------------*/
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# if WITH_DMALLOC
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# define DMALLOC_FUNC_CHECK
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# include <dmalloc.h>
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# endif /* WITH_DMALLOC */
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#endif /* ! BISON_SYSTEM_H */
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