[$] Stabilizing Rust's never type
A function's return type is supposed to indicate the kind of data that it produces. Rust's "never" type, which is denoted by an exclamation mark (" ! "), is the type the language uses to mark a function that never returns and other places where a value can never occur. For a long time, the never type was used internally by the compiler, but was considered an unstable feature. On August 24 , after…
We haven't written up this one. LWN has the full story — the link below goes straight to it.