Hi,
The do{SOMETHING}while(0) thingy has been often discussed in
many mailing lists, and recently an entry about it was
updated in kernelnewbies FAQ.
However, what's the role of do{SOMETHING}while, if that
SOMETHING is empty. In kernel, both forms of defining
'empty' function-like macros are used:
#define foo(stuff...) do { } while(0)
and
#define foo(stuff...)
Purely a style difference, or something more there? If just
a style thing, why would anyone prefer a style, which gives
(slightly) more work to compiler?
Thanks in advance,
Olav
PS. Please keep me CC-d as I am not subscribed.
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