On Thu, Oct 22, 2015 at 02:18:47PM -0200, Daniel. wrote: > I mean that packed attribute is applied only when allocation is > implied or can I apply packed > attribute to struct definitions where no variables are declared? Yes, it applies to the type. > struct __attribute__((__packed__)) foo { ... }; > struct foo bar; <--- is this packed? Compare sizeof(struct foo) with sizeof(bar) to find out yourself. Cheers, Phil -- To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html