diff options
Diffstat (limited to 'lib/zebra.h')
| -rw-r--r-- | lib/zebra.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/lib/zebra.h b/lib/zebra.h index 98428eaab2..9ac96372ff 100644 --- a/lib/zebra.h +++ b/lib/zebra.h @@ -365,6 +365,22 @@ struct in_pktinfo { _a < _b ? _a : _b; \ }) +#ifndef offsetof +#ifdef __compiler_offsetof +#define offsetof(TYPE,MEMBER) __compiler_offsetof(TYPE,MEMBER) +#else +#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER) +#endif +#endif + +#ifndef container_of +#define container_of(ptr, type, member) \ + ({ \ + const typeof(((type *)0)->member) *__mptr = (ptr); \ + (type *)((char *)__mptr - offsetof(type, member)); \ + }) +#endif + #define ZEBRA_NUM_OF(x) (sizeof (x) / sizeof (x[0])) /* For old definition. */ |