diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/ChangeLog | 15 | ||||
| -rw-r--r-- | include/obstack.h | 40 |
2 files changed, 41 insertions, 14 deletions
diff --git a/include/ChangeLog b/include/ChangeLog index d1e9a1d..cae7505 100644 --- a/include/ChangeLog +++ b/include/ChangeLog @@ -1,3 +1,18 @@ +2003-10-22 Joseph S. Myers <jsm@polyomino.org.uk> + + * obstack.h: Merge the following change from gnulib: + 2003-10-21 Paul Eggert <eggert@twinsun.com> + * obstack.h (obstack_1grow_fast): Properly parenthesize arg. + (obstack_ptr_grow_fast, obstack_int_grow_fast): + Don't use lvalue casts, as GCC plans to remove support for them + in GCC 3.5. Reported by Joseph S. Myers. This bug + was also present in the non-GCC version, indicating that this + code had always been buggy and had never been widely used. + (obstack_1grow, obstack_ptr_grow, obstack_int_grow, obstack_blank): + Use the fast variant of each macro, rather than copying the + definiens of the fast variant; that way, we'll be more likely to + catch future bugs in the fast variants. + 2003-10-22 Jakub Jelinek <jakub@redhat.com> * bfdlink.h (struct bfd_elf_version_expr): Remove match field. diff --git a/include/obstack.h b/include/obstack.h index d86d9f2..5496ff2 100644 --- a/include/obstack.h +++ b/include/obstack.h @@ -343,7 +343,7 @@ extern int obstack_exit_failure; #endif -#define obstack_1grow_fast(h,achar) (*((h)->next_free)++ = achar) +#define obstack_1grow_fast(h,achar) (*((h)->next_free)++ = (achar)) #define obstack_blank_fast(h,n) ((h)->next_free += (n)) @@ -411,7 +411,7 @@ __extension__ \ ({ struct obstack *__o = (OBSTACK); \ if (__o->next_free + 1 > __o->chunk_limit) \ _obstack_newchunk (__o, 1); \ - *(__o->next_free)++ = (datum); \ + obstack_1grow_fast (__o, datum); \ (void) 0; }) /* These assume that the obstack alignment is good enough for pointers or ints, @@ -423,19 +423,28 @@ __extension__ \ ({ struct obstack *__o = (OBSTACK); \ if (__o->next_free + sizeof (void *) > __o->chunk_limit) \ _obstack_newchunk (__o, sizeof (void *)); \ - *((void **)__o->next_free)++ = ((void *)datum); \ - (void) 0; }) + obstack_ptr_grow_fast (__o, datum); }) # define obstack_int_grow(OBSTACK,datum) \ __extension__ \ ({ struct obstack *__o = (OBSTACK); \ if (__o->next_free + sizeof (int) > __o->chunk_limit) \ _obstack_newchunk (__o, sizeof (int)); \ - *((int *)__o->next_free)++ = ((int)datum); \ + 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) \ __extension__ \ @@ -443,7 +452,7 @@ __extension__ \ int __len = (length); \ if (__o->chunk_limit - __o->next_free < __len) \ _obstack_newchunk (__o, __len); \ - __o->next_free += __len; \ + obstack_blank_fast (__o, __len); \ (void) 0; }) # define obstack_alloc(OBSTACK,length) \ @@ -530,26 +539,29 @@ __extension__ \ # 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) \ ( (((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) \ ( (((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) \ + (((const void **) ((h)->next_free += sizeof (void *)))[-1] = (aptr)) -# 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_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) \ (obstack_blank ((h), (length)), obstack_finish ((h))) |