struct Rec { f: isize } fn f(p: *const Rec) -> isize { // Test that * ptrs do not autoderef. There is a deeper reason for // prohibiting this, beyond making unsafe things annoying (which doesn't // actually seem desirable to me). The deeper reason is that if you // have a type like: // // enum foo = *foo; // // you end up with an infinite auto-deref chain, which is // currently impossible (in all other cases, infinite auto-derefs // are prohibited by various checks, such as that the enum is // instantiable and so forth). return p.f; //~ ERROR no field `f` on type `*const Rec` } fn main() { }