access foreach index counter for Iterate n times

[mw]

On Saturday, 21 May 2022 at 02:08:05 UTC, Ali Çehreli wrote:
> On 5/20/22 18:26, forkit wrote:
>
>> {
>>      foreach(i, e; iota(5,11).array)
>>          writeln(i, ":", e);
>> }
>
> That .array may be unnecessarily expensive in some cases 
> because it allocates memory. The following is an alternative:
>
>     foreach(i, e; iota(5,11).enumerate)
>         writeln(i, ":", e);


Sure, all nice workarounds.

But isn't iota as a function call also expensive?

I wrote this naturally after seeing the array foreach example:

```
foreach (i, e; 5 .. 10)
```

I don't even know the function iota, and why it's needed for a 
simple loop like this?


```
foreach (e; 5 .. 10)
```

just to get i?

My point: the language should be more consistent.