/* obstack.h - object stack macros
- Copyright (C) 1988, 1992 Free Software Foundation, Inc.
+ Copyright 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1996, 1997, 1998,
+ 1999, 2000
+ Free Software Foundation, Inc.
-This program is free software; you can redistribute it and/or modify it
-under the terms of the GNU Library 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
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU Library General Public License for more details.
+ NOTE: The canonical source of this file is maintained with the GNU C Library.
+ Bugs can be reported to bug-glibc@gnu.org.
-You should have received a copy of the GNU Library General Public License
-along with this program; if not, write to the Free Software
-Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+ 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
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ 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. */
/* Summary:
/* Don't do the contents of this file more than once. */
-#ifndef __OBSTACKS__
-#define __OBSTACKS__
+#ifndef _OBSTACK_H
+#define _OBSTACK_H 1
+
+#ifdef __cplusplus
+extern "C" {
+#endif
\f
-/* We use subtraction of (char *)0 instead of casting to int
+/* We use subtraction of (char *) 0 instead of casting to int
because on word-addressable machines a simple cast to int
may ignore the byte-within-word field of the pointer. */
#ifndef __PTR_TO_INT
-#define __PTR_TO_INT(P) ((P) - (char *)0)
+# define __PTR_TO_INT(P) ((P) - (char *) 0)
#endif
#ifndef __INT_TO_PTR
-#define __INT_TO_PTR(P) ((P) + (char *)0)
+# define __INT_TO_PTR(P) ((P) + (char *) 0)
#endif
-/* We need the type of the resulting object. In ANSI C it is ptrdiff_t
- 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 (__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 gstddef.h.
- Otherwise, define just ptrdiff_t, which is all we need. */
-#ifndef __NeXT__
-#define __need_ptrdiff_t
-#endif
+/* We need the type of the resulting object. If __PTRDIFF_TYPE__ is
+ defined, as with GNU C, use that; that way we don't pollute the
+ namespace with <stddef.h>'s symbols. Otherwise, if <stddef.h> is
+ available, include it and use ptrdiff_t. In traditional C, long is
+ the best that we can do. */
-/* While building GCC, the stddef.h that goes with GCC has this name. */
-#include "gstddef.h"
+#ifdef __PTRDIFF_TYPE__
+# define PTR_INT_TYPE __PTRDIFF_TYPE__
#else
-#include <stddef.h>
-#endif
+# ifdef HAVE_STDDEF_H
+# include <stddef.h>
+# define PTR_INT_TYPE ptrdiff_t
+# else
+# define PTR_INT_TYPE long
+# endif
#endif
-#ifdef __STDC__
-#define PTR_INT_TYPE ptrdiff_t
+#if defined _LIBC || defined HAVE_STRING_H
+# include <string.h>
+# if defined __STDC__ && __STDC__
+# define _obstack_memcpy(To, From, N) memcpy ((To), (From), (N))
+# else
+# define _obstack_memcpy(To, From, N) memcpy ((To), (char *)(From), (N))
+# endif
#else
-#define PTR_INT_TYPE long
+# ifdef memcpy
+# define _obstack_memcpy(To, From, N) memcpy ((To), (char *)(From), (N))
+# else
+# define _obstack_memcpy(To, From, N) bcopy ((char *)(From), (To), (N))
+# endif
#endif
struct _obstack_chunk /* Lives at front of each chunk. */
struct obstack /* control current object in current chunk */
{
long chunk_size; /* preferred size to allocate chunks in */
- struct _obstack_chunk* chunk; /* address of current struct obstack_chunk */
+ struct _obstack_chunk *chunk; /* address of current struct obstack_chunk */
char *object_base; /* address of object we are building */
char *next_free; /* where to add next char to current object */
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
prevents freeing the chunk if we allocate
a bigger chunk to replace it. */
+ unsigned alloc_failed:1; /* No longer used, as we now call the failed
+ handler on error, but retained for binary
+ compatibility. */
};
/* 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 void _obstack_begin (struct obstack *, int, int,
- void *(*) (), void (*) ());
-extern void _obstack_begin_1 (struct obstack *, int, int,
- void *(*) (), void (*) (), void *);
+extern int _obstack_begin (struct obstack *, int, int,
+ void *(*) (long), void (*) (void *));
+extern int _obstack_begin_1 (struct obstack *, int, int,
+ void *(*) (void *, long),
+ void (*) (void *, void *), void *);
+extern int _obstack_memory_used (struct obstack *);
#else
extern void _obstack_newchunk ();
extern void _obstack_free ();
-extern void _obstack_begin ();
-extern void _obstack_begin_1 ();
+extern int _obstack_begin ();
+extern int _obstack_begin_1 ();
+extern int _obstack_memory_used ();
#endif
\f
-#ifdef __STDC__
+#if defined __STDC__ && __STDC__
/* Do the function-declarations after the structs
but before defining the macros. */
int obstack_object_size (struct obstack *obstack);
int obstack_room (struct obstack *obstack);
+void obstack_make_room (struct obstack *obstack, int size);
void obstack_1grow_fast (struct obstack *obstack, int data_char);
void obstack_ptr_grow_fast (struct obstack *obstack, void *data);
void obstack_int_grow_fast (struct obstack *obstack, int data);
void * obstack_next_free (struct obstack *obstack);
int obstack_alignment_mask (struct obstack *obstack);
int obstack_chunk_size (struct obstack *obstack);
+int obstack_memory_used (struct obstack *obstack);
#endif /* __STDC__ */
/* Non-ANSI C cannot really support alternative functions for these macros,
so we do not declare them. */
+
+/* Error handler called when `obstack_chunk_alloc' failed to allocate
+ more memory. This can be set to a user defined function. The
+ default action is to print a message and abort. */
+#if defined __STDC__ && __STDC__
+extern void (*obstack_alloc_failed_handler) (void);
+#else
+extern void (*obstack_alloc_failed_handler) ();
+#endif
+
+/* Exit value used when `print_and_abort' is used. */
+extern int obstack_exit_failure;
\f
/* Pointer to beginning of object being allocated or to be allocated next.
Note that this might not be the final address of the object
#define obstack_alignment_mask(h) ((h)->alignment_mask)
-#define obstack_init(h) \
+/* 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 *(*) (void *, long)) (chunkfun), \
+ (void (*) (void *, void *)) (freefun), (arg))
+
+# define obstack_chunkfun(h, newchunkfun) \
+ ((h) -> chunkfun = (struct _obstack_chunk *(*)(void *, long)) (newchunkfun))
+
+# define obstack_freefun(h, newfreefun) \
+ ((h) -> freefun = (void (*)(void *, struct _obstack_chunk *)) (newfreefun))
+
+#else
+
+# define obstack_init(h) \
_obstack_begin ((h), 0, 0, \
(void *(*) ()) obstack_chunk_alloc, (void (*) ()) obstack_chunk_free)
-#define obstack_begin(h, size) \
+# define obstack_begin(h, size) \
_obstack_begin ((h), (size), 0, \
(void *(*) ()) obstack_chunk_alloc, (void (*) ()) obstack_chunk_free)
-#define obstack_specify_allocation(h, size, alignment, chunkfun, freefun) \
+# define obstack_specify_allocation(h, size, alignment, chunkfun, freefun) \
_obstack_begin ((h), (size), (alignment), \
(void *(*) ()) (chunkfun), (void (*) ()) (freefun))
-#define obstack_specify_allocation_with_arg(h, size, alignment, chunkfun, freefun, arg) \
+# define obstack_specify_allocation_with_arg(h, size, alignment, chunkfun, freefun, arg) \
_obstack_begin_1 ((h), (size), (alignment), \
(void *(*) ()) (chunkfun), (void (*) ()) (freefun), (arg))
-#define obstack_1grow_fast(h,achar) (*((h)->next_free)++ = achar)
+# define obstack_chunkfun(h, newchunkfun) \
+ ((h) -> chunkfun = (struct _obstack_chunk *(*)()) (newchunkfun))
+
+# 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))
+
+#define obstack_memory_used(h) _obstack_memory_used (h)
\f
-#if defined (__GNUC__) && defined (__STDC__)
-#if __GNUC__ < 2
-#define __extension__
-#endif
+#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
/* For GNU C, if not -traditional,
we can define these macros to compute all args only once
without using a global variable.
Also, we can avoid using the `temp' slot, to make faster code. */
-#define obstack_object_size(OBSTACK) \
+# define obstack_object_size(OBSTACK) \
__extension__ \
({ struct obstack *__o = (OBSTACK); \
(unsigned) (__o->next_free - __o->object_base); })
-#define obstack_room(OBSTACK) \
+# define obstack_room(OBSTACK) \
__extension__ \
({ struct obstack *__o = (OBSTACK); \
(unsigned) (__o->chunk_limit - __o->next_free); })
-/* Note that the call to _obstack_newchunk is enclosed in (..., 0)
- so that we can avoid having void expressions
- in the arms of the conditional expression.
- Casting the third operand to void was tried before,
- but some compilers won't accept it. */
-#define obstack_grow(OBSTACK,where,length) \
+# define obstack_make_room(OBSTACK,length) \
+__extension__ \
+({ struct obstack *__o = (OBSTACK); \
+ int __len = (length); \
+ if (__o->chunk_limit - __o->next_free < __len) \
+ _obstack_newchunk (__o, __len); \
+ (void) 0; })
+
+# define obstack_empty_p(OBSTACK) \
+ __extension__ \
+ ({ struct obstack *__o = (OBSTACK); \
+ (__o->chunk->prev == 0 && __o->next_free - __o->chunk->contents == 0); })
+
+# define obstack_grow(OBSTACK,where,length) \
__extension__ \
({ struct obstack *__o = (OBSTACK); \
int __len = (length); \
- ((__o->next_free + __len > __o->chunk_limit) \
- ? (_obstack_newchunk (__o, __len), 0) : 0); \
- bcopy (where, __o->next_free, __len); \
+ if (__o->next_free + __len > __o->chunk_limit) \
+ _obstack_newchunk (__o, __len); \
+ _obstack_memcpy (__o->next_free, (where), __len); \
__o->next_free += __len; \
(void) 0; })
-#define obstack_grow0(OBSTACK,where,length) \
+# define obstack_grow0(OBSTACK,where,length) \
__extension__ \
({ struct obstack *__o = (OBSTACK); \
int __len = (length); \
- ((__o->next_free + __len + 1 > __o->chunk_limit) \
- ? (_obstack_newchunk (__o, __len + 1), 0) : 0), \
- bcopy (where, __o->next_free, __len), \
- __o->next_free += __len, \
+ if (__o->next_free + __len + 1 > __o->chunk_limit) \
+ _obstack_newchunk (__o, __len + 1); \
+ _obstack_memcpy (__o->next_free, (where), __len); \
+ __o->next_free += __len; \
*(__o->next_free)++ = 0; \
(void) 0; })
-#define obstack_1grow(OBSTACK,datum) \
+# define obstack_1grow(OBSTACK,datum) \
__extension__ \
({ struct obstack *__o = (OBSTACK); \
- ((__o->next_free + 1 > __o->chunk_limit) \
- ? (_obstack_newchunk (__o, 1), 0) : 0), \
- *(__o->next_free)++ = (datum); \
+ if (__o->next_free + 1 > __o->chunk_limit) \
+ _obstack_newchunk (__o, 1); \
+ obstack_1grow_fast (__o, datum); \
(void) 0; })
/* 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) \
+
+# define obstack_ptr_grow(OBSTACK,datum) \
__extension__ \
({ struct obstack *__o = (OBSTACK); \
- ((__o->next_free + sizeof (void *) > __o->chunk_limit) \
- ? (_obstack_newchunk (__o, sizeof (void *)), 0) : 0), \
- *((void **)__o->next_free)++ = ((void *)datum); \
- (void) 0; })
+ if (__o->next_free + sizeof (void *) > __o->chunk_limit) \
+ _obstack_newchunk (__o, sizeof (void *)); \
+ obstack_ptr_grow_fast (__o, datum); })
-#define obstack_int_grow(OBSTACK,datum) \
+# define obstack_int_grow(OBSTACK,datum) \
__extension__ \
({ struct obstack *__o = (OBSTACK); \
- ((__o->next_free + sizeof (int) > __o->chunk_limit) \
- ? (_obstack_newchunk (__o, sizeof (int)), 0) : 0), \
- *((int *)__o->next_free)++ = ((int)datum); \
+ if (__o->next_free + sizeof (int) > __o->chunk_limit) \
+ _obstack_newchunk (__o, sizeof (int)); \
+ obstack_int_grow_fast (__o, datum); })
+
+# define obstack_ptr_grow_fast(OBSTACK,aptr) \
+__extension__ \
+({ struct obstack *__o1 = (OBSTACK); \
+ *(const void **) __o1->next_free = (aptr); \
+ __o1->next_free += sizeof (const void *); \
(void) 0; })
-#define obstack_ptr_grow_fast(h,aptr) (*((void **)(h)->next_free)++ = (void *)aptr)
-#define obstack_int_grow_fast(h,aint) (*((int *)(h)->next_free)++ = (int)aint)
+# define obstack_int_grow_fast(OBSTACK,aint) \
+__extension__ \
+({ struct obstack *__o1 = (OBSTACK); \
+ *(int *) __o1->next_free = (aint); \
+ __o1->next_free += sizeof (int); \
+ (void) 0; })
-#define obstack_blank(OBSTACK,length) \
+# define obstack_blank(OBSTACK,length) \
__extension__ \
({ struct obstack *__o = (OBSTACK); \
int __len = (length); \
- ((__o->chunk_limit - __o->next_free < __len) \
- ? (_obstack_newchunk (__o, __len), 0) : 0); \
- __o->next_free += __len; \
+ if (__o->chunk_limit - __o->next_free < __len) \
+ _obstack_newchunk (__o, __len); \
+ obstack_blank_fast (__o, __len); \
(void) 0; })
-#define obstack_alloc(OBSTACK,length) \
+# define obstack_alloc(OBSTACK,length) \
__extension__ \
({ struct obstack *__h = (OBSTACK); \
obstack_blank (__h, (length)); \
obstack_finish (__h); })
-#define obstack_copy(OBSTACK,where,length) \
+# define obstack_copy(OBSTACK,where,length) \
__extension__ \
({ struct obstack *__h = (OBSTACK); \
obstack_grow (__h, (where), (length)); \
obstack_finish (__h); })
-#define obstack_copy0(OBSTACK,where,length) \
+# define obstack_copy0(OBSTACK,where,length) \
__extension__ \
({ struct obstack *__h = (OBSTACK); \
obstack_grow0 (__h, (where), (length)); \
/* The local variable is named __o1 to avoid a name conflict
when obstack_blank is called. */
-#define obstack_finish(OBSTACK) \
+# define obstack_finish(OBSTACK) \
__extension__ \
({ struct obstack *__o1 = (OBSTACK); \
- void *value = (void *) __o1->object_base; \
+ void *value; \
+ value = (void *) __o1->object_base; \
if (__o1->next_free == value) \
__o1->maybe_empty_object = 1; \
__o1->next_free \
= __INT_TO_PTR ((__PTR_TO_INT (__o1->next_free)+__o1->alignment_mask)\
& ~ (__o1->alignment_mask)); \
- ((__o1->next_free - (char *)__o1->chunk \
- > __o1->chunk_limit - (char *)__o1->chunk) \
- ? (__o1->next_free = __o1->chunk_limit) : 0); \
+ if (__o1->next_free - (char *)__o1->chunk \
+ > __o1->chunk_limit - (char *)__o1->chunk) \
+ __o1->next_free = __o1->chunk_limit; \
__o1->object_base = __o1->next_free; \
value; })
-#define obstack_free(OBSTACK, OBJ) \
+# define obstack_free(OBSTACK, OBJ) \
__extension__ \
({ struct obstack *__o = (OBSTACK); \
- void *__obj = (OBJ); \
+ void *__obj = (void *) (OBJ); \
if (__obj > (void *)__o->chunk && __obj < (void *)__o->chunk_limit) \
- __o->next_free = __o->object_base = __obj; \
+ __o->next_free = __o->object_base = (char *) __obj; \
else (obstack_free) (__o, __obj); })
\f
#else /* not __GNUC__ or not __STDC__ */
-#define obstack_object_size(h) \
+# define obstack_object_size(h) \
(unsigned) ((h)->next_free - (h)->object_base)
-#define obstack_room(h) \
+# define obstack_room(h) \
(unsigned) ((h)->chunk_limit - (h)->next_free)
-#define obstack_grow(h,where,length) \
+# define obstack_empty_p(h) \
+ ((h)->chunk->prev == 0 && (h)->next_free - (h)->chunk->contents == 0)
+
+/* Note that the call to _obstack_newchunk is enclosed in (..., 0)
+ so that we can avoid having void expressions
+ in the arms of the conditional expression.
+ Casting the third operand to void was tried before,
+ but some compilers won't accept it. */
+
+# define obstack_make_room(h,length) \
+( (h)->temp = (length), \
+ (((h)->next_free + (h)->temp > (h)->chunk_limit) \
+ ? (_obstack_newchunk ((h), (h)->temp), 0) : 0))
+
+# define obstack_grow(h,where,length) \
( (h)->temp = (length), \
(((h)->next_free + (h)->temp > (h)->chunk_limit) \
? (_obstack_newchunk ((h), (h)->temp), 0) : 0), \
- bcopy (where, (h)->next_free, (h)->temp), \
+ _obstack_memcpy ((h)->next_free, (where), (h)->temp), \
(h)->next_free += (h)->temp)
-#define obstack_grow0(h,where,length) \
+# define obstack_grow0(h,where,length) \
( (h)->temp = (length), \
(((h)->next_free + (h)->temp + 1 > (h)->chunk_limit) \
? (_obstack_newchunk ((h), (h)->temp + 1), 0) : 0), \
- bcopy (where, (h)->next_free, (h)->temp), \
+ _obstack_memcpy ((h)->next_free, (where), (h)->temp), \
(h)->next_free += (h)->temp, \
*((h)->next_free)++ = 0)
-#define obstack_1grow(h,datum) \
+# define obstack_1grow(h,datum) \
( (((h)->next_free + 1 > (h)->chunk_limit) \
? (_obstack_newchunk ((h), 1), 0) : 0), \
- *((h)->next_free)++ = (datum))
+ obstack_1grow_fast (h, datum))
-#define obstack_ptr_grow(h,datum) \
+# define obstack_ptr_grow(h,datum) \
( (((h)->next_free + sizeof (char *) > (h)->chunk_limit) \
? (_obstack_newchunk ((h), sizeof (char *)), 0) : 0), \
- *((char **)(((h)->next_free+=sizeof(char *))-sizeof(char *))) = ((char *)datum))
+ obstack_ptr_grow_fast (h, datum))
-#define obstack_int_grow(h,datum) \
+# define obstack_int_grow(h,datum) \
( (((h)->next_free + sizeof (int) > (h)->chunk_limit) \
? (_obstack_newchunk ((h), sizeof (int)), 0) : 0), \
- *((int *)(((h)->next_free+=sizeof(int))-sizeof(int))) = ((int)datum))
+ obstack_int_grow_fast (h, datum))
-#define obstack_ptr_grow_fast(h,aptr) (*((char **)(h)->next_free)++ = (char *)aptr)
-#define obstack_int_grow_fast(h,aint) (*((int *)(h)->next_free)++ = (int)aint)
+# define obstack_ptr_grow_fast(h,aptr) \
+ (((const void **) ((h)->next_free += sizeof (void *)))[-1] = (aptr))
-#define obstack_blank(h,length) \
+# define obstack_int_grow_fast(h,aint) \
+ (((int *) ((h)->next_free += sizeof (int)))[-1] = (aptr))
+
+# define obstack_blank(h,length) \
( (h)->temp = (length), \
(((h)->chunk_limit - (h)->next_free < (h)->temp) \
? (_obstack_newchunk ((h), (h)->temp), 0) : 0), \
- (h)->next_free += (h)->temp)
+ obstack_blank_fast (h, (h)->temp))
-#define obstack_alloc(h,length) \
+# define obstack_alloc(h,length) \
(obstack_blank ((h), (length)), obstack_finish ((h)))
-#define obstack_copy(h,where,length) \
+# define obstack_copy(h,where,length) \
(obstack_grow ((h), (where), (length)), obstack_finish ((h)))
-#define obstack_copy0(h,where,length) \
+# define obstack_copy0(h,where,length) \
(obstack_grow0 ((h), (where), (length)), obstack_finish ((h)))
-#define obstack_finish(h) \
+# define obstack_finish(h) \
( ((h)->next_free == (h)->object_base \
? (((h)->maybe_empty_object = 1), 0) \
: 0), \
(h)->next_free \
= __INT_TO_PTR ((__PTR_TO_INT ((h)->next_free)+(h)->alignment_mask) \
& ~ ((h)->alignment_mask)), \
- (((h)->next_free - (char *)(h)->chunk \
- > (h)->chunk_limit - (char *)(h)->chunk) \
+ (((h)->next_free - (char *) (h)->chunk \
+ > (h)->chunk_limit - (char *) (h)->chunk) \
? ((h)->next_free = (h)->chunk_limit) : 0), \
(h)->object_base = (h)->next_free, \
__INT_TO_PTR ((h)->temp))
-#ifdef __STDC__
-#define obstack_free(h,obj) \
-( (h)->temp = (char *)(obj) - (char *) (h)->chunk, \
+# 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)\
? (int) ((h)->next_free = (h)->object_base \
= (h)->temp + (char *) (h)->chunk) \
: (((obstack_free) ((h), (h)->temp + (char *) (h)->chunk), 0), 0)))
-#else
-#define obstack_free(h,obj) \
-( (h)->temp = (char *)(obj) - (char *) (h)->chunk, \
+# else
+# define obstack_free(h,obj) \
+( (h)->temp = (char *) (obj) - (char *) (h)->chunk, \
(((h)->temp > 0 && (h)->temp < (h)->chunk_limit - (char *) (h)->chunk)\
? (int) ((h)->next_free = (h)->object_base \
= (h)->temp + (char *) (h)->chunk) \
: (_obstack_free ((h), (h)->temp + (char *) (h)->chunk), 0)))
-#endif
+# endif
#endif /* not __GNUC__ or not __STDC__ */
-#endif /* not __OBSTACKS__ */
+#ifdef __cplusplus
+} /* C++ */
+#endif
+
+#endif /* obstack.h */