diff options
| -rw-r--r-- | lib/birdlib.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/birdlib.h b/lib/birdlib.h index 431b7c0d..2e642d38 100644 --- a/lib/birdlib.h +++ b/lib/birdlib.h @@ -16,7 +16,7 @@ struct align_probe { char x; long int y; }; #define OFFSETOF(s, i) ((size_t) &((s *)0)->i) -#define SKIP_BACK(s, i, p) ((s *)((char *)p - OFFSETOF(s, i))) +#define SKIP_BACK(s, i, p) ({ s *_ptr = ((s *)((char *)p - OFFSETOF(s, i))); ASSERT_DIE(&_ptr->i == p); _ptr; }) #define BIRD_ALIGN(s, a) (((s)+a-1)&~(a-1)) #define CPU_STRUCT_ALIGN (sizeof(struct align_probe)) |