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(PTR_INT_TYPE) [!defined __PTRDIFF_TYPE__]:

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Define to ptrdiff_t, without bothering to check HAVE_STDDEF_H.
(This type really should be intptr_t, but that's a C99ism.)
(_obstack_memcpy): Remove: all uses changed to memcpy.
Include <string.h> unconditionally.
(struct obstack): Assume __STDC__ for types of members
chunkfun, freefun, extra_arg.
(_obstack_newchunk, _obstack_free, _obstack_begin, _obstack_begin_1,
_obstack_memory_used, obstack_alloc_failed_handler, obstack_init,
obstack_begin, obstack_specify_allocation,
obstack_specify_allocation_with_arg, obstack_chunkfun,
obstack_freefun, obstack_free) [! (defined __STDC__ && __STDC__)]:
Remove unprototyped decls and the macros that use them.
This commit is contained in:
Jim Meyering
2003-09-10 09:06:23 +00:00
parent 77438a47c0
commit bae2a5d7f4
1 changed files with 10 additions and 91 deletions
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101
lib/obstack.h
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@@ -127,31 +127,17 @@ extern "C" {
/* 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. */
namespace with <stddef.h>'s symbols. Otherwise, include <stddef.h>
and use ptrdiff_t. */
#ifdef __PTRDIFF_TYPE__
# define PTR_INT_TYPE __PTRDIFF_TYPE__
#else
# ifdef HAVE_STDDEF_H
# include <stddef.h>
# define PTR_INT_TYPE ptrdiff_t
# else
# define PTR_INT_TYPE long
# endif
# include <stddef.h>
# define PTR_INT_TYPE ptrdiff_t
#endif
#if defined _LIBC || defined HAVE_STRING_H
# include <string.h>
# define _obstack_memcpy(To, From, N) memcpy ((To), (From), (N))
#else
# ifdef memcpy
# define _obstack_memcpy(To, From, N) memcpy ((To), (From), (N))
# else
# define _obstack_memcpy(To, From, N) bcopy ((From), (To), (N))
# endif
#endif
#include <string.h>
struct _obstack_chunk /* Lives at front of each chunk. */
{
@@ -169,18 +155,12 @@ struct obstack /* control current object in current chunk */
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
@@ -193,7 +173,6 @@ struct obstack /* control current object in current chunk */
/* Declare the external functions we use; they are in obstack.c. */
#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,
@@ -202,16 +181,7 @@ 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 int _obstack_begin ();
extern int _obstack_begin_1 ();
extern int _obstack_memory_used ();
#endif
#if defined __STDC__ && __STDC__
/* Do the function-declarations after the structs
but before defining the macros. */
@@ -250,20 +220,11 @@ 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 which
should either abort gracefully or use longjump - but shouldn't
return. 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;
@@ -286,10 +247,7 @@ extern int obstack_exit_failure;
#define obstack_alignment_mask(h) ((h)->alignment_mask)
/* To prevent prototype warnings provide complete argument list in
standard C version. */
#if defined __STDC__ && __STDC__
/* To prevent prototype warnings provide complete argument list. */
# define obstack_init(h) \
_obstack_begin ((h), 0, 0, \
(void *(*) (long)) obstack_chunk_alloc, \
@@ -316,36 +274,6 @@ extern int obstack_exit_failure;
# 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) \
_obstack_begin ((h), (size), 0, \
(void *(*) ()) obstack_chunk_alloc, \
(void (*) ()) obstack_chunk_free)
# 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) \
_obstack_begin_1 ((h), (size), (alignment), \
(void *(*) ()) (chunkfun), \
(void (*) ()) (freefun), (arg))
# 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))
@@ -394,7 +322,7 @@ __extension__ \
int __len = (length); \
if (__o->next_free + __len > __o->chunk_limit) \
_obstack_newchunk (__o, __len); \
_obstack_memcpy (__o->next_free, (where), __len); \
memcpy (__o->next_free, (where), __len); \
__o->next_free += __len; \
(void) 0; })
@@ -404,7 +332,7 @@ __extension__ \
int __len = (length); \
if (__o->next_free + __len + 1 > __o->chunk_limit) \
_obstack_newchunk (__o, __len + 1); \
_obstack_memcpy (__o->next_free, (where), __len); \
memcpy (__o->next_free, (where), __len); \
__o->next_free += __len; \
*(__o->next_free)++ = 0; \
(void) 0; })
@@ -522,14 +450,14 @@ __extension__ \
( (h)->temp = (length), \
(((h)->next_free + (h)->temp > (h)->chunk_limit) \
? (_obstack_newchunk ((h), (h)->temp), 0) : 0), \
_obstack_memcpy ((h)->next_free, (where), (h)->temp), \
memcpy ((h)->next_free, (where), (h)->temp), \
(h)->next_free += (h)->temp)
# 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), \
_obstack_memcpy ((h)->next_free, (where), (h)->temp), \
memcpy ((h)->next_free, (where), (h)->temp), \
(h)->next_free += (h)->temp, \
*((h)->next_free)++ = 0)
@@ -583,21 +511,12 @@ __extension__ \
(h)->object_base = (h)->next_free, \
(void *) __INT_TO_PTR ((h)->temp))
# 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, \
(((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 /* not __GNUC__ or not __STDC__ */