> Constructing an invalid pointer in rust is UB no, it is dereferencing, not constructing, an invalid pointer, that is UB. there is even a safe function provid

> Constructing an invalid pointer in rust is UB no, it is dereferencing, not constructing, an invalid pointer, that is UB. there is even a safe function provided to construct an invalid but non-null pointer: `https://doc.rust-lang.org/stable/std/ptr/fn.dangling.html https://doc.rust-lang.org/stable/std/ptr/fn.dangling.html`