diff options
Diffstat (limited to 'gnu/usr.bin/grep/obstack.h')
| -rw-r--r-- | gnu/usr.bin/grep/obstack.h | 212 |
1 files changed, 106 insertions, 106 deletions
diff --git a/gnu/usr.bin/grep/obstack.h b/gnu/usr.bin/grep/obstack.h index df785c3..4d49ce0 100644 --- a/gnu/usr.bin/grep/obstack.h +++ b/gnu/usr.bin/grep/obstack.h @@ -1,26 +1,23 @@ /* obstack.h - object stack macros - Copyright (C) 1988,89,90,91,92,93,94,96,97, 98 Free Software Foundation, Inc. + Copyright (C) 1988,89,90,91,92,93,94,96,97,98,99 Free Software Foundation, Inc. + This file is part of the GNU C Library. Its master source is NOT part of the C library, however. The master source lives in /gd/gnu/lib. -NOTE: The canonical source of this file is maintained with the -GNU C Library. Bugs can be reported to bug-glibc@prep.ai.mit.edu. + The GNU C Library 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 of the + License, 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. + The GNU C Library 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. -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. */ - -/* $FreeBSD$ */ + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ /* Summary: @@ -119,45 +116,39 @@ extern "C" { 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) -#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__) && __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. - Otherwise, define just ptrdiff_t, which is all we need. */ -#ifndef __NeXT__ -#define __need_ptrdiff_t -#endif +# define __INT_TO_PTR(P) ((P) + (char *) 0) #endif -#include <stddef.h> -#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. */ -#if defined (__STDC__) && __STDC__ -#define PTR_INT_TYPE ptrdiff_t +#ifdef __PTRDIFF_TYPE__ +# define PTR_INT_TYPE __PTRDIFF_TYPE__ #else -#define PTR_INT_TYPE long +# ifdef HAVE_STDDEF_H +# include <stddef.h> +# define PTR_INT_TYPE ptrdiff_t +# else +# define PTR_INT_TYPE long +# endif #endif -#if defined (_LIBC) || defined (HAVE_STRING_H) -#include <string.h> -#define _obstack_memcpy(To, From, N) memcpy ((To), (From), (N)) +#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 +# 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 struct _obstack_chunk /* Lives at front of each chunk. */ @@ -176,7 +167,7 @@ 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__ +#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. */ @@ -200,7 +191,7 @@ struct obstack /* control current object in current chunk */ /* Declare the external functions we use; they are in obstack.c. */ -#if defined (__STDC__) && __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, @@ -217,7 +208,7 @@ extern int _obstack_begin_1 (); extern int _obstack_memory_used (); #endif -#if defined (__STDC__) && __STDC__ +#if defined __STDC__ && __STDC__ /* Do the function-declarations after the structs but before defining the macros. */ @@ -263,9 +254,10 @@ int obstack_memory_used (struct obstack *obstack); 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__ + 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) (); @@ -294,53 +286,53 @@ extern int obstack_exit_failure; /* To prevent prototype warnings provide complete argument list in standard C version. */ -#if defined (__STDC__) && __STDC__ +#if defined __STDC__ && __STDC__ -#define obstack_init(h) \ +# define obstack_init(h) \ _obstack_begin ((h), 0, 0, \ (void *(*) (long)) obstack_chunk_alloc, (void (*) (void *)) obstack_chunk_free) -#define obstack_begin(h, size) \ +# 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) \ +# 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) \ +# 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) \ +# define obstack_chunkfun(h, newchunkfun) \ ((h) -> chunkfun = (struct _obstack_chunk *(*)(void *, long)) (newchunkfun)) -#define obstack_freefun(h, newfreefun) \ +# define obstack_freefun(h, newfreefun) \ ((h) -> freefun = (void (*)(void *, struct _obstack_chunk *)) (newfreefun)) #else -#define obstack_init(h) \ +# 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_chunkfun(h, newchunkfun) \ +# define obstack_chunkfun(h, newchunkfun) \ ((h) -> chunkfun = (struct _obstack_chunk *(*)()) (newchunkfun)) -#define obstack_freefun(h, newfreefun) \ +# define obstack_freefun(h, newfreefun) \ ((h) -> freefun = (void (*)()) (newfreefun)) #endif @@ -351,30 +343,30 @@ extern int obstack_exit_failure; #define obstack_memory_used(h) _obstack_memory_used (h) -#if defined (__GNUC__) && defined (__STDC__) && __STDC__ +#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 +# 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); }) -#define obstack_make_room(OBSTACK,length) \ +# define obstack_make_room(OBSTACK,length) \ __extension__ \ ({ struct obstack *__o = (OBSTACK); \ int __len = (length); \ @@ -382,7 +374,12 @@ __extension__ \ _obstack_newchunk (__o, __len); \ (void) 0; }) -#define obstack_grow(OBSTACK,where,length) \ +# 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); \ @@ -392,7 +389,7 @@ __extension__ \ __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); \ @@ -403,7 +400,7 @@ __extension__ \ *(__o->next_free)++ = 0; \ (void) 0; }) -#define obstack_1grow(OBSTACK,datum) \ +# define obstack_1grow(OBSTACK,datum) \ __extension__ \ ({ struct obstack *__o = (OBSTACK); \ if (__o->next_free + 1 > __o->chunk_limit) \ @@ -415,7 +412,7 @@ __extension__ \ 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); \ if (__o->next_free + sizeof (void *) > __o->chunk_limit) \ @@ -423,7 +420,7 @@ __extension__ \ *((void **)__o->next_free)++ = ((void *)datum); \ (void) 0; }) -#define obstack_int_grow(OBSTACK,datum) \ +# define obstack_int_grow(OBSTACK,datum) \ __extension__ \ ({ struct obstack *__o = (OBSTACK); \ if (__o->next_free + sizeof (int) > __o->chunk_limit) \ @@ -431,10 +428,10 @@ __extension__ \ *((int *)__o->next_free)++ = ((int)datum); \ (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_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_blank(OBSTACK,length) \ +# define obstack_blank(OBSTACK,length) \ __extension__ \ ({ struct obstack *__o = (OBSTACK); \ int __len = (length); \ @@ -443,19 +440,19 @@ __extension__ \ __o->next_free += __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)); \ @@ -463,7 +460,7 @@ __extension__ \ /* 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; \ @@ -479,41 +476,44 @@ __extension__ \ __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); \ 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); }) #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_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) \ +# 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) \ +# define obstack_grow(h,where,length) \ ( (h)->temp = (length), \ (((h)->next_free + (h)->temp > (h)->chunk_limit) \ ? (_obstack_newchunk ((h), (h)->temp), 0) : 0), \ _obstack_memcpy ((h)->next_free, (char *) (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), \ @@ -521,40 +521,40 @@ __extension__ \ (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))) -#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))) -#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))) -#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) (*((char **) (h)->next_free)++ = (char *) aptr) +# define obstack_int_grow_fast(h,aint) (*((int *) (h)->next_free)++ = (int) aint) -#define obstack_blank(h,length) \ +# 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)) -#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), \ @@ -568,21 +568,21 @@ __extension__ \ (h)->object_base = (h)->next_free, \ __INT_TO_PTR ((h)->temp)) -#if defined (__STDC__) && __STDC__ -#define obstack_free(h,obj) \ +# 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) \ +# 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__ */ |
