It's trivial to store a null pointer in an Option::Some(). struct Foo; fn main() { let option_with_null: Option<*const Foo> = Some(std::ptr::null(

It's trivial to store a null pointer in an Option::Some(). struct Foo; fn main() { let option_with_null: Option<*const Foo> = Some(std::ptr::null()); dbg!(option_with_null); dbg!(option_with_null.is_none()); } Output: [src/main.rs:6] option_with_null = Some( 0x0000000000000000, ) [src/main.rs:7] option_with_null.is_none() = false https://play.rust-lang.org/?version=stable&mode=debug&edition=2021&gist=6b87832bf48f4115ae44504e497287c4 https://play.rust-lang.org/?version=stable&mode=debug&editio...