Why are static arrays not ranges?

[anonymous via Digitalmars-d-learn]

On Monday 21 September 2015 22:33, Jack Stouffer wrote:

> import std.range;
> 
> void main() {
>      int[6] a = [1, 2, 3, 4, 5, 6];
> 
>      pragma(msg, isInputRange!(typeof(a)));
>      pragma(msg, isForwardRange!(typeof(a)));
>      pragma(msg, isRandomAccessRange!(typeof(a)));
> }
> 
> $ dmd -run test.d
> false
> false
> false
> 
> That's ridiculous. Do I have to wrap my static arrays in structs 
> to get range primitives?

You can just slice them: `a[]` is an `int[]` which is a range.

> Is there an actual reason for this?

How would popFront work on an `int[6]`? popFront can't change the type, but 
it must remove an element.