https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67582
--- Comment #5 from Vegard Nossum <vegard.nossum at gmail dot com> --- (In reply to Jonathan Wakely from comment #4) > But *p is not a valid expression, so you might as well ask for > typeof(this is nonsense and not valid C++). > > You also can't ask for sizeof(*p) for a void pointer. The following bits from the standard draft seem to support what you say: [basic.compound].3 "The type of a pointer to void or a pointer to an object type is called an object pointer type. [ Note: A pointer to void does not have a pointer-to-object type, however, because void is not an object type. — end note ]" [expr.unary.op].1 "The unary * operator performs indirection: the expression to which it is applied shall be a pointer to an object type, or a pointer to a function type and the result is an lvalue referring to the object or function to which the expression points."
