[edk] [edk2] gcc typeof equivalent

[Ian N. <ian...@ho...>]

Hello,
I inherit some gcc driver code and I'm porting a part of it to my EBC driver.

What's the equivalent of gcc typeof or how to implement the equivalent?

In particular, I'm having problem with this line of code:
list_for_each_entry_safe_from(bn, _bn, &dev->bvec_list.lh, lh)


1.Since list_for_each_entry_safe_from(pos, n, head, member) is defined as:
for (n = list_entry(pos->member.next, typeof(*pos), member); &pos->member != (head); pos = n, n = list_entry(n->member.next, typeof(*n), member))

2.  And list_entry(ptr, type, member) = container_of(ptr, type, member)

3.  #define container_of(ptr, type, member) ({ \
                const typeof( ((type *)0)->member ) *__mptr = (ptr); 
                (type *)( (char *)__mptr - offsetof(type,member) );})


By the time I expand all arguments, I'm hopelessly lost (:

Any suggestions?


Thanks!