> And before that, in the pre-alpha days of Rust, arrays were defined with a variadic macro. The /* something */ above was a [T, ..$N], where T is the type, and

> And before that, in the pre-alpha days of Rust, arrays were defined with a variadic macro. The /* something */ above was a [T, ..$N], where T is the type, and ..$N defines a range (I believe -- old Rust is weird) up to the number of specified elements. This is just a misunderstanding. The `..$N` was just the array length syntax. Now the syntax is `[T; N]` with no change in meaning - there was no variadic magic.