Rust continues to top the charts as the most admired and desired language by developers, and in this post, we dive a little deeper into how (and why) Rust is stealing the hearts of developers around the world.
I left something important out from my explanation. Your example still holds ownership of the data, so that’s where the rules are violated with those raw pointers. You have to use Box::into_raw or something similar to disassociate the data from the Rust compiler. Then you can alias it using raw pointers.
It seems I misunderstood something important here. I’d take that as proof that Unsafe Rust is rarely needed. 😜 A quick test on the Playground shows that indeed, using raw pointers does not yield the wrong result, while using references does: https://play.rust-lang.org/?version=stable&mode=release&edition=2021&gist=96f80d43d71a73018f23705d74b7e21d
Conclusion: Unsafe Rust is not as difficult as I thought.
I left something important out from my explanation. Your example still holds ownership of the data, so that’s where the rules are violated with those raw pointers. You have to use
Box::into_rawor something similar to disassociate the data from the Rust compiler. Then you can alias it using raw pointers.