> When using pointers in safe Rust, one is generally limited to tree structures. For the sake of completeness, it's possible to express certain cyclic graph pa

> When using pointers in safe Rust, one is generally limited to tree structures. For the sake of completeness, it's possible to express certain cyclic graph patterns without overhead in safe Rust. But it's usually too much of a hassle to bother with. https://docs.rs/ghost-cell/latest/ghost_cell/ https://docs.rs/ghost-cell/latest/ghost_cell/