Andreas Schwab <schwab@xxxxxxxxxxxxxx> writes: > Johannes Sixt <j6t@xxxxxxxx> writes: > >> Isn't internal padding only allowed between members to achieve correct >> alignment of later members, and at the end only sufficient padding so >> that members are aligned correctly when the struct is part of an array? > > The standard allows arbitrary internal padding, it doesn't have to be > minimal. What the standard does guarantee is that a pointer to a struct can be cast to a pointer to its first member and vice versa. It does not as far as I can see guarantee that a pointer to something of the same type of its first member can be converted to a pointer to a struct even if the struct only contains a member of such type. -- David Kastrup -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html