Range length property

[Per Nordlöw]

On Tuesday, 10 April 2018 at 20:16:18 UTC, Steven Schveighoffer 
wrote:
> e.g. std.array.array is going to pre-allocate an array of the 
> correct length and fill it in, vs. appending each element as it 
> gets them from the range.
>
> Personally, I would store the length because typically a 
> container range is short-lived. It also jives with the 
> container itself which likely has O(1) length.

Thanks, that's what I thought too.