/* obstack.h - object stack macros
- Copyright (C) 1988, 89, 90, 91, 92, 93, 94 Free Software Foundation, Inc.
+ Copyright (C) 1988,89,90,91,92,93,94,96 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.
+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.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
-Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Summary:
#ifndef __OBSTACK_H__
#define __OBSTACK_H__
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#if !defined (HAVE_BCOPY) && defined (HAVE_MEMCPY) && !defined (bcopy)
+# define bcopy(from, to, len) memcpy ((to), (from), (len))
+#endif
+
\f
/* We use subtraction of (char *)0 instead of casting to int
because on word-addressable machines a simple cast to int
but in traditional C it is usually long. If we are in ANSI C and
don't already have ptrdiff_t get it. */
-#if defined (__STDC__) && ! defined (offsetof)
+#if defined (__STDC__) && __STDC__ && ! defined (offsetof)
#if defined (__GNUC__) && defined (IN_GCC)
/* On Next machine, the system's stddef.h screws up if included
after we have defined just ptrdiff_t, so include all of stddef.h.
#include <stddef.h>
#endif
-#ifdef __STDC__
+#include <sys/types.h>
+
+#ifndef HAVE_PTRDIFF_T
+# define ptrdiff_t off_t
+#endif
+
+#if defined (__STDC__) && __STDC__
#define PTR_INT_TYPE ptrdiff_t
#else
#define PTR_INT_TYPE long
char *chunk_limit; /* address of char after current chunk */
PTR_INT_TYPE temp; /* Temporary for some macros. */
int alignment_mask; /* Mask of alignment for each object. */
+#if defined (__STDC__) && __STDC__
+ /* These prototypes vary based on `use_extra_arg', and we use
+ casts to the prototypeless function type in all assignments,
+ but having prototypes here quiets -Wstrict-prototypes. */
+ struct _obstack_chunk *(*chunkfun) (void *, long);
+ void (*freefun) (void *, struct _obstack_chunk *);
+ void *extra_arg; /* first arg for chunk alloc/dealloc funcs */
+#else
struct _obstack_chunk *(*chunkfun) (); /* User's fcn to allocate a chunk. */
void (*freefun) (); /* User's function to free a chunk. */
char *extra_arg; /* first arg for chunk alloc/dealloc funcs */
+#endif
unsigned use_extra_arg:1; /* chunk alloc/dealloc funcs take extra arg */
unsigned maybe_empty_object:1;/* There is a possibility that the current
chunk contains a zero-length object. This
/* Declare the external functions we use; they are in obstack.c. */
-#ifdef __STDC__
+#if defined (__STDC__) && __STDC__
extern void _obstack_newchunk (struct obstack *, int);
extern void _obstack_free (struct obstack *, void *);
extern int _obstack_begin (struct obstack *, int, int,
- void *(*) (), void (*) ());
+ void *(*) (long), void (*) (void *));
extern int _obstack_begin_1 (struct obstack *, int, int,
- void *(*) (), void (*) (), void *);
+ void *(*) (void *, long),
+ void (*) (void *, void *), void *);
#else
extern void _obstack_newchunk ();
extern void _obstack_free ();
extern int _obstack_begin_1 ();
#endif
\f
-#ifdef __STDC__
+#if defined (__STDC__) && __STDC__
/* Do the function-declarations after the structs
but before defining the macros. */
#define obstack_alignment_mask(h) ((h)->alignment_mask)
+/* To prevent prototype warnings provide complete argument list in
+ standard C version. */
+#if defined (__STDC__) && __STDC__
+
+#define obstack_init(h) \
+ _obstack_begin ((h), 0, 0, \
+ (void *(*) (long)) obstack_chunk_alloc, (void (*) (void *)) obstack_chunk_free)
+
+#define obstack_begin(h, size) \
+ _obstack_begin ((h), (size), 0, \
+ (void *(*) (long)) obstack_chunk_alloc, (void (*) (void *)) obstack_chunk_free)
+
+#define obstack_specify_allocation(h, size, alignment, chunkfun, freefun) \
+ _obstack_begin ((h), (size), (alignment), \
+ (void *(*) (long)) (chunkfun), (void (*) (void *)) (freefun))
+
+#define obstack_specify_allocation_with_arg(h, size, alignment, chunkfun, freefun, arg) \
+ _obstack_begin_1 ((h), (size), (alignment), \
+ (void *(*) (long)) (chunkfun), (void (*) (void *)) (freefun), (arg))
+
+#define obstack_chunkfun(h, newchunkfun) \
+ ((h) -> chunkfun = (struct _obstack_chunk *(*)(long)) (newchunkfun))
+
+#define obstack_freefun(h, newfreefun) \
+ ((h) -> freefun = (void (*)(void *)) (newfreefun))
+
+#else
+
#define obstack_init(h) \
_obstack_begin ((h), 0, 0, \
(void *(*) ()) obstack_chunk_alloc, (void (*) ()) obstack_chunk_free)
#define obstack_freefun(h, newfreefun) \
((h) -> freefun = (void (*)()) (newfreefun))
+#endif
+
#define obstack_1grow_fast(h,achar) (*((h)->next_free)++ = achar)
#define obstack_blank_fast(h,n) ((h)->next_free += (n))
\f
-#if defined (__GNUC__) && defined (__STDC__)
-#if __GNUC__ < 2
+#if defined (__GNUC__) && defined (__STDC__) && __STDC__
+/* NextStep 2.0 cc is really gcc 1.93 but it defines __GNUC__ = 2 and
+ does not implement __extension__. But that compiler doesn't define
+ __GNUC_MINOR__. */
+#if __GNUC__ < 2 || (__NeXT__ && !__GNUC_MINOR__)
#define __extension__
#endif
/* These assume that the obstack alignment is good enough for pointers or ints,
and that the data added so far to the current object
shares that much alignment. */
-
+
#define obstack_ptr_grow(OBSTACK,datum) \
__extension__ \
({ struct obstack *__o = (OBSTACK); \
(h)->object_base = (h)->next_free, \
__INT_TO_PTR ((h)->temp)))
-#ifdef __STDC__
+#if defined (__STDC__) && __STDC__
#define obstack_free(h,obj) \
( (h)->temp = (char *)(obj) - (char *) (h)->chunk, \
(((h)->temp > 0 && (h)->temp < (h)->chunk_limit - (char *) (h)->chunk)\
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