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author | Jim Meyering <jim@meyering.net> | 2003-09-10 09:06:23 +0000 |
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committer | Jim Meyering <jim@meyering.net> | 2003-09-10 09:06:23 +0000 |
commit | bae2a5d7f41bf6c0fd7945b4efc471cfe8dfeba1 (patch) | |
tree | d8b3d433086a344bc558f6d84d2affca231223bc /lib | |
parent | 77438a47c0604d419777eed83a18d6f920e84ce4 (diff) | |
download | coreutils-bae2a5d7f41bf6c0fd7945b4efc471cfe8dfeba1.tar.xz |
(PTR_INT_TYPE) [!defined __PTRDIFF_TYPE__]:
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.
Diffstat (limited to 'lib')
-rw-r--r-- | lib/obstack.h | 101 |
1 files changed, 10 insertions, 91 deletions
diff --git a/lib/obstack.h b/lib/obstack.h index 87bf2a343..6f8e35f35 100644 --- a/lib/obstack.h +++ b/lib/obstack.h @@ -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__ */ |