> All of such cases require unsafe blocks in Rust. It's true that Rust makes it much harder to leak memory compared to C and even C++, especially when writing

> All of such cases require unsafe blocks in Rust. It's true that Rust makes it much harder to leak memory compared to C and even C++, especially when writing idiomatic Rust -- if nothing else, simply because Rust forces the programmer to think more deeply about memory ownership. But it's simply not the case that leaking memory in Rust requires unsafe blocks. There's a section in the Rust book explaining this in detail[1] ("memory leaks are memory safe in Rust"). [1] https://doc.rust-lang.org/book/ch15-06-reference-cycles.html https://doc.rust-lang.org/book/ch15-06-reference-cycles.html