3 ms·

Thanks for the explanation, this really piques my interest in Rust. BTW, now I have a follow-up to my question whether Rust's references are the analogue to C++

by thebear 14y ago

Thanks for the explanation, this really piques my interest in Rust. BTW, now I have a follow-up to my question whether Rust's references are the analogue to C++ weak pointers. C++ weak pointers can be dangling, but in a controlled manner, that is, one can ask them whether they're dangling or not. Am I correct in assuming that Rust will never allow anything like a dangling pointer, not even the "controlled dangling" of a C++ weak pointer?

pcwalton 14y ago
Right, Rust references are never dangling. But there might end up being true weak references in the standard library, which would be more like a C++ weak pointer. (I'd take a patch for them if anyone needed them, though it's blocked on the GC landing.)