Mike Frysinger wrote:
> it depends completely on how the macro is intended to be used. if you
> want to maintain the "this macro has a return value", then you have to
> use ({...}). if you want the macro to return a void, then you have to
> use do{...}while(0).
Actually no. The difference is do {...} while(0) is a _statement_ and
cannot be used in an expression. Whereas a void value can be used in
expressions like A?B:C, (A,B) and returned from a function, it just
has type void.
-- Jamie
--
To unsubscribe from this list: send the line "unsubscribe linux-embedded" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
